May 1, 2009 · 1983 Chevrolet Camaro 4L60E Upgrade - Transmission. I've seen that link before. Mar 17, 2011 · Common failures on 4L60E, problems any possible repair Problem Symptoms Possible repair Slow, slipping or no reverse “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sunshell. Reset the computer sometimes it regains first gear and shifts through all the gears all day. New filter and oil. If you can determine what wire at the pcm is the signal wire (ground), you can check the wire for power at the pcm with the key on. No? The 3-4, overrun and forward pistons are new. It offered a new lower 3. Oct 14, 2004 · did find the problem, Thanks for all the advice broke it down to find the splines on the reaction sun shell were stripped out. 7L with a 4L60E trans. Fluid and filter was changed about 15K miles ago. It drives and shifts perfectly other than recently, after its warmed up it seems to struggle to shift into overdrive. There is fluid that goes through the 4L60E that has three jobs: Lubrication; Cooling; Energy movement The computer is telling the transmission to do one thing, but mechanically it’s doing its own thing in regards to gear selection. I would search around for "4L60e no first gear" keeping in mind that it is distinct from the common issue of "starting in 2nd". 06:1 first gear and a 30-percent overdrive fourth gear. 55, 3rd - 1. Jan 10, 2024 · GM 4L60E: Electronic Control: Transition from hydraulic to electronic for precise shifts. By the time we got to the shop it was well over 260. Check the vehicle speed sensors for proper operation. In the 700R4/4L60E section they say that a company called PATC (Performance Automotive and Transmission Center) has a new planetary gear set that gives the 700R4/4L60E the following gear ratios 1st - 2. From the third to fourth shift, Solenoid A goes from off to on. the only real down side is you will lose all of your tranny fluid. Firmer 3-4 shifts and more positive 4-3 down shifts. Jun 18, 2018 · It shifts beauuuuutifully to Reverse, 1 to 2, 2 to 3, but from 3rd there's nothing. Then in 4th (overdrive) the band is applied again, but this time it is with the 3-4 clutch still applied. Inspect and test the throttle position sensor. 10. General Motors’ Vehicle Speed Sensor and a vehicle powertrain computer always determined precisely when gear shifting was optimum. 5 in the quarter. Apr 10, 2010 · 4l60e shifts from 1st to 3rd. replaced the normal seals, screens, clutches, steels, and band. Apr 3, 2017 · My buddy and I just rebuilt my 4L60E with just some new clutches, steels, shims, filter, and gaskets, nothing to in depth. Jan 6, 2020 · Again, the overall first-gear ratio with the TH400 and 4. Jun 23, 2016 · While the 4L80E uses a 2. On a 4l60e, the shift solenoids are located on the rearward end of the transmission against where the pan bolts to the case. Max Torque Dec 11, 2017 · No ABS lights, no CEL, speedometer is working, transmission is no longer in limp-mode! It continued to work like that for the whole week. It has always shifted great, never had any problems. Trans has been rebuilt. Apr 14, 2014 · -1997 k1500 ,ECSB, 350, built 4l60e with 2000 stall, air raid CAI, ported MAF sensor, ported throttle body, magnaflow catback with moroso spiral flow mufflers, flowtech shorty headers, escalade 3. I replaced the shift solenoids and still had the problem. Part number: K034. The car is safe to drive (in 2) until you can get it fixed. It will just downshift out of 4th and stay in third gear. Changed out the PCM with a known good model with stock chip. When it loses first I put the shifter in OD and it tries to take off in drive. Oct 8, 2023 · Main Causes Why Your 4L60E Won’t Shift Into Overdrive. Drive it today to take the kids to school, no ABS lights \ speedo and transmission shifting perfectly. You manually shift back into 3rd and it locks in and feels normal. I went to the store and left it running, when I got back my CEL was on. Base pressure at idle in P,N,OD should be around 70psi and around 140psi in R. May 30, 2007 · No 2nd or 4th gear. Versatile Performance: High torque capacity suitable for a variety of models. It is possible to remedy a fluid May 9, 2018 · Manually shift down to first or second and behaves as normal. 4L60E No Reverse Causes Low Reverse Mar 14, 2024 · To understand gear ratios, we must first grasp what a 4L60E transmission is. Or leak in a vacume line or unhooked. 42 10 bolt posi (Buick), - All your base are belong to us. thanks tcoop Dec 6, 2017 · I went a bought a used transmission off Craigslist and couldn't get the tranny to do anything in any gear at all so I figured I got burned and bought a rebuilt 4l60e to install but I'm still having issues. Dec 26, 2011 · 9. Jan 20, 2016 · The sprag clutch is active in all forward gears (except 4th while in 4th/OD) so I'm curious what led you in that direction? The Low Roller clutch, however, is unique to first gear. Saturday rolls around and now the ABS lights are on again and transmission is in Limp Mode. May 28, 2015 · The 4th gear is overdrive. I wasn't able to go fast enough to see if it would go into overdrive but 2nd and 3rd are definitely good. Mar 3, 2018 · One of the most common (and most frustrating) problems that happens to the 4L60E is when it loses 3rd and 4th gear at the same time. If the passing gear cable is broke,unhooked at the throutle body or unhooked inside the transmission would cause that as well. Aug 28, 2009 · In the Sept. 2009 issue of Car Craft they published a guide to overdrive automatics. Thought what had happened was a fluke so I drove it to work the next day, again, drove fine. I am sure if the OP wanted a 6spd, he would have built it with one. 2-4 band is slipping. If it is just a solinoid how do I go about replacing it ( a web site would be great) ? THANKS:LS1LT1flag: Aug 29, 2009 · When this happens then the shifting valve returns. 4L60E Problems: No 3rd or 4th Gear. The shift point for first to second gear is about 43 MPH (69 km/h) while second to third gear shift point is about 83 MPH (134 km/h) assuming a 3. 73s (if I can keep it hooking). only fill it with new fluid. 73:1 = 11. Jun 11, 2014 · I have a 1995 silverado 1500 2wd 5. That works, but now engine is overheating as well. The truck has reverse and first. But 10. Aug 19, 2022 · 2008 Silverado 5. My 97 Chevy Blazer 4. I was told if I could hook in first over then my ET would drop . At Wal-Mart, the fluid level was fine and had a nice pink color with no burned smell so I made no additions. 48:1 First gear. The only possible failure there is the VSS causing no 1st and no speedo. The main hiccup on the 4L60E is its gear ratios – 3. 52:1. May 29, 2015 · OK well this is my first post and yes I did search but it's hard to search for this problem specifically. 059; 2: 1. took a short ride and you can watch the gear commanded change and feel the transmission down shift when pedal is added but still tries to start out in fourth in drive. If you press the brake pedal lightly or shift out of overdrive the shudder will quit. 696-to-1 for fourth ; The 2. 01| The Level 4 Gearstar 4L60E four-speed isn’t much larger than the three-speed TH350 that was original equipment in the ’69 El Camino of Roadkill’s Mike Finnegan – yet it’s much stronger, allows precision adjustment of shift points and firmness, and adds a freeway-friendly 0. 11 rear gear will be worthless in first gear, and it won't hold the power - especially if you are drag racing it with tires that hook. A little history of the trans; this is the 3rd rebuild. So i put both new shift solenoids in, still no change. The 4L60E has a 3. Problems with no overdrive can happen because faults associated with these two Aug 10, 2013 · So iv got a 2000 chevy blazer 4x4 with a 4. No 2nd or overdrive. I already replaced the first gear solenoid. its pretty easy to do. 06 first gear which is good for initial take off but this makes the transmission have the widest ratio … Continue reading GM 4-Speed Auto → Jun 25, 2012 · Fresh rebuild on my caprice trans. Yeah I know it sounds like BS, but look what a th400 with a closer gear Jun 27, 2009 · Good Morning. If I don't let it downshift, the transmission seems like it's slipping or has a slight vibration and the RPM drops a tad and back up repeatedly. 70:1 Overdrive. May 7, 2023 · BTW, 'limp mode' is a failsafe for electronic issues -- 3rd is the only gear in the 4L60E that doesn't require electronic activation, so it became the 'limp home' gear. Im going to check out valve body i put 7 balls in 1 near accumulator n two incapsulated. However, this comes with a notable rpm drop during the 1-2 and 2-3 gear changes, which is a minor issue at part throttle due to converter slippage. This is very steep. You asked if one of the shift solenoids could be the problem. 3l with a 4L60e tranny. 70 overdrive. Fuel Efficiency: Overdrive and refined gear ratios for better fuel economy. Common causes include: Worn overdrive band – Friction material wears out, causing slippage and failure to engage OD. If you don't see 12 volts at pin A, it will not shift to 2nd gear PCM does all the shifting automatically when in drive based on vehicle speed and engine load (via TPS). Dec 29, 2023 · The ratios comparison between the TH350 and 700R4/4L60E is intriguing, especially with the 700R4/4L60E’s 3. Jan 19, 2021 · Superior Transmission Parts billet overdrive Super Servo for the GM 700R4, 4L60, 4L60E, 4L65E, 4L70E, 4L75E THM700-R4 MD8. This first version was designed with a bolt-on extension housing and employed a throttle-valve (TV) cable intended to signal engine load to the transmission via throttle position, instead of Feb 4, 2010 · 5. 06:1 First-gear ratio would appear to be an advantage over the TH350’s 2. May 24, 2023 · It cooled down to 210, so we started easing it back to the shop - and the temps climbed, seemingly no matter which gear we held it in. its likely a solenoid in the tranny. After doing some reading I decided to replace both shift solenoids and filter. The lower gears let the output turn slower than the input. Also the way the gasket is shot, I'm doubting it was rebuilt at that shop, they may have just replaced all of the solenoids, as I can see the pick marks where they were trying to get to the pins on the Torque Converter solenoid and pressure control solenoid. I have a 4l60e transmission with no 4th gear. Applied the brakes and the rpm's climb. Feb 9, 2008 · GM 4L60E no 4th gear. In third gear, the 3-4 clutch pack is applied as the band lets go. All the other gears work ok. i have to keep it in 2nd and cant really go over 50mph. The forward sprag also has to be able to overrun in overdrive or it will bind up the gear train. It did move if the shifter was moved to 3rd or 2nd or 1st gear however. Upon leaving Wal-Mart, I shifted manually to 1st gear to see if was working and it was. Jan 11, 2022 · Reinstalled transmission, and first gear does not fully engage in drive. I cut the wire and installed a butt connector. and would eventually replace the Turbo 350. In 4th gear, overdrive, under load the transmission will shudder. i checked the 2-4 servo, no problems there. 06:1. i wouldnt normally suggest a possible minor repair with this trans with so many miles but, it does appear that your not near home. The engine light come on due to the no shift. While this isn’t a problem directly caused by transmission parts, the torque converter not locking in overdrive can cause symptoms that feel similar to transmission slippage. The 3rd clutch breaking is a physical problem, so when it goes, the trans will flare above about 25-28 mph, as it can't shift to 3rd at that point, automatically or manually. The definition of overdrive is when the transmission output turns at a higher rpm than the input. It would shift fine through the gears but not into 4th. 41:1 which is the effective First gear ratio. Sometimes it will regain 1st for a few miles. PATC has developed a 6-pinion planet gear set for 700R4 / 4L60E transmissions. The Trans fuse was blown. Test the sensor (there should be a smooth, linear electrical response over the range of motion) or substitute a known good unit. 3L won't shift in 4th gear anymore. Every other gear works great absolutely no slipping. Dec 30, 2023 · I have a 96 gmc k1500 with the 5. The 4L60E is a popular transmission swap for muscle car restorations to add the overdrive option & to update to a modern transmission. 29-to-1 ratio for the reverse; How 4L60E Stacks Up Against the 4L80E Jan 25, 2016 · check your fluid, if its clean then you did not blow a clutch pack. This can result in reduced fuel efficiency, increased engine stress, and poor driving performance. what i think happened was when it cracked, my friend that was driving it at the time didn't realize the May 7, 2011 · 2nd gear - Solenoid A is off - Spring SHOULD push valve to Solenoid A 3rd gear - Solenoid A is off - Spring SHOULD hold valve at Solenoid A; fluid flow on back of valve thus helping spring 4th gear - Solenoid A on, but fluid & spring hold valve at Solenoid A I'm no pro at this, but I'd check to make sure the 1-2 shift valve circuit is good to go. Now, if this is caused by a cracked or fractured drive shell, there’ll be no reverse gear, either. Jul 17, 2018 · My 4l60e recently started dropping out of overdrive randomly when warmed up. Sep 11, 2016 · With the 4L60E, don't even think about a cable. A typical problem with these is that the planetary gears and input ring gear get damaged, and this might’ve even stripped some of its splines. I don't normally remove any springs on the 4L60E Oct 18, 2013 · I have a 1994 C-1500 2wd with a 4. The only way the PCM knows what gear is desired via selector is via the pressure sensor. That solenoid must be energized for fluid to flow to the third clutch. once the solenoids have been replaced and fluid has been restored you my Jun 24, 2016 · While the 4L80E uses a 2. 05-to-1 for first; 1. Is this true? The code that comes up is shift solenoid A malfuntion electrical. I start driving it the other day to check out the new gear ratios ive got and overdrive won’t go out of 2nd, neither will 3rd. L and need to have it rebuilt. I'll take a picture and upload. Jul 4, 2017 · The only downside to this combination is that a 700-R4/4L60E uses a really deep First gear ratio of 3. Yep,Vacume could be if your 4wd works under vacume hoses or lines. Posted below is my teardown and inspection video that covers everything you Oct 1, 2007 · 1994 Black Formula LT1 4L60E Auto Trans, 3. How to fix 4l60e not holding gear after shift: Take vehicle to trusted transmission shop for diagnosis and possible rebuild; Torque Converter Not Locking. Jul 30, 2020 · This is exactly what my 1997 Yukon GT just started doing. Mar 23, 2007 · As for overdrive, while driving around 65 mph for a while, it seems go into overdrive but the rpm's seem high, around 2300. You would think by now we have seen all the possible causes for the various problems they have, burnt 3-4 clutches, band failure, reverse reaction shell failure, and the list goes on and on. Jan 11, 2016 · Thanks for your reply. side header. However, and this is intermittent, some times trans goes into safe mode (check tran light ON) in 6th gear and I can’t get back into a lower gear unless I stop traffic (on my ass) and restart engine. Manually, I'm able to go through all the gears but overdrive is not noticeable. Feb 7, 2017 · The 1-2 shift failure on the 4L60E is often due to a faulty throttle position sensor (TPS). g. Idle also irregular. Still no 1st The gear ratios for the 4L60E are: 1: 3. You’ll need to consider their first gear ratio and could support the gear ratio with a rear axle differential. So, what causes the no 3rd gear or 4th gear problem? Below are some common Oct 30, 2023 · How to Fix 4L60E Transmission Not Moving in any Gear. 74:1 and 3. I have a 4l60e ran by an optishift unit in my 92. Apr 4, 2018 · It has worked fine until recently while out of town it seemed to lose 4th gear/overdrive. No changes still loose rpm 🤣 overdrive still do not want to engage. No 2nd or 4th gear. May 2, 2010 · I have a 1997 S10 with a 4L60E transmission and reverse went out the other day. That will tell you if the wiring is good. 700R4/4L60E’s have a low 3. 1st gear stopped working but allowed manually shifting between 2nd, D and OD. Nov 9, 2021 · Since you have the 4L60E computer, you might first make sure the computer is energizing the 2-3 solenoid when shifting into 3rd gear. 84, 2nd - 1. We redid the 2/4 servo so i dont think its that. Turn ignition to "RUN" position. also found the 1-2 accumulator cracked with a broken spring. seperated pump and cleaned along with the valve body. 06 ratio in first gear, which is 20% lower than most transmissions. Jan 30, 2015 · Then I turned it back on, no Check Engine light. It worked great for 2-3 days. funny today another one camr\e in with the same no reverse, second or fourth there is an updated sun shell with more rebust heat treated parts. Anything else i could check? . Third gear, of course, is at 1:1, and the fourth is reserved for overdrive. On my way back home, it wouldn't shift into 2nd gear again about halfway home (live about 15miles from work). The two shifting solenoids will engage like this: 1-2 energized for first gear. crap crap fart checked pressure and was ok but had no chance to do it on wot Jan 19, 2012 · 2004 SUBURBAN c1500 4L60e will not shift automatically while in drive or overdrive, starts out fine but will not shift at shift points and just keeps revving no shift almost seem as it is in low (1st) gear changed VSS, no help thinking about changing TPS but found out it can not be changed by itself it is part of the throttle-body and the whole throttle-body needs to be replaced to change Jan 18, 2010 · I have the same issue '00 GM Jimmy, 4l60e, and no second gear, shifts to third when let off gas in first, second acts like neutral it will shift into it when shifting down and there's just nothing there, I was hoping just a solenoid, but dudes story a above scares me lol. Dec 7, 2023 · I just finished rebuilding my 4l60e trans and am having issues. Feb 24, 2019 · This makes NO SENSE!! So Shift Solenoid A = 1-2 and B=2-3 1st Gear Solenoid 1-2 ON and solenoid 2-3 ON 2nd Gear Solenoid 1-2 OFF and Solenoid 2-3 ON 3rd Gear Solenoid 1-2 OFF and Solenoid 2-3 OFF 4th Gear Solenoid 1-2 ON and Solenoid 2-3 OFF Take a look at this see if it makes any sense. I will keep my 3. I worked for a major transmission chain for 8 years in the tech department and before that I was a rebuilder for 27 years in the May 24, 2023 · It cooled down to 210, so we started easing it back to the shop - and the temps climbed, seemingly no matter which gear we held it in. 06 in first and 1. i recently cracked the adapter in between the transfer case and transmission that mounts to the crossmember. Reset the PCM. I tested the A solenoid while driving (someone else was driving while I put a ground on the light green wire) and the transmission will shift into 1st gear. 625; 3: 1. The overdrive gear is gear number four. Hereitis is correct, wiring problem. The 30% overdrive will give a 30 to 40% increase in gas mileage on the road when compared to a 3-speed transmission. You might be hearing the sound of the gears clicking, or no sound at all. As a point of comparison, let’s compare that to the same effective First gear ratio with a TH400 trans that uses a 2. and engine. Mar 31, 2009 · The transmission is only shifting 1 time that i can feel. 52:1, the downside with the deeper First is the major rpm drop in the 1-2 and 2-3 gear changes that the 700R4/4L60 force upon you. So is it a solinoid or am I S. Introduced in 1993 for trucks, vans, and SUVs, then in 1994 for rear-wheel-drive passenger cars, the 4L60E from General Motors is an evolution of the Turbo-Hydramatic 700R4 and replaced the tried and true TH350. . 06:1, respectively. leavng the store I noticed it wasnt taking off as it should. 62 in second, which meant you were getting a massive amount of torque in first gear, before dropping down to about half that power in second. Dec 16, 2017 · Only Drive if not. We doublechecked the line pressures, all was in spec, checked the fluid - it wasn't discolored at all, no debris in it, but it smelled like a burned pizza. The other day i hoped in it and drove to town. You either got a vacume line crossed/wrong. 7. 3l Zr2 with 179k (now ONLY on the body lol) but i blew out the torque converter = (TC), and foward clutches and it had all 179k on both the trans and TC. I found a wire had been burnt (but not all the way through) near my D. Drop it down to manual one and all the power is there. Torque multiplication is hugely important in the lower gears, so I wouldn't give it up just for an overdrive gear Sep 7, 2013 · I just purchased 95 K1500 and, along with someone doing away with the emissions on the engine, I noticed when taking off the transmission starts in 2nd gear. While the 3. My buddy used to work for GM. If the Jul 5, 2022 · The complaint. Check trans fuse underhood, and Feb 14, 2021 · A 700R4 with a 4. The 4L60E has different gear ratios: 3. All downshifts are smooth as butter too. But, there's not enough pressure to fully engage the forward piston. 06:1 x 3. 98. There was no noise or slipping before 1st & 2nd stopped working. The originals Oct 19, 2014 · As far as the no OD, all other gears fine - it seems most likely culprit would be the servo where it actuates for 1st and OD with different fluid circuits. Also any connector not seated properly can cause a no shift condition. 63 Second, which was a holdover from the 700-R4 and better suited to a dump truck or May 5, 2019 · I understand that the transmission will not shift into overdrive. Trans does not upshift out of first, speedometer reads zero at all times: VSS failure. 63 Second, which was a holdover from the 700-R4 and better suited to a dump truck or Aug 29, 2009 · When this happens then the shifting valve returns. Otherwise, 2-4 band is worn out. Now probe the power feed wire in the electrical connector and verify you are getting 12 volts. No 3rd or 4th gear: "3-4" clutches are worn out. The transmission was just rebuilt two years ago. When in drive/overdrive it starts out in second. 06:1 first gear ratio was also approved by off-road enthusiasts looking for torque when spinning oversized tires in the dirt. Again, pulled over to the side and waited 15min. Its not my fuel pump or filter as Oct 4, 2009 · First thing to do is check it for trouble codes. I could put it in drive and only 2nd and 3rd gear would work. If so, you’ll Jun 1, 2008 · What exactly is a Gear Vendors unit, and how does it work? No doubt a majority of Chevy owners are already equipped with factory transmissions such as the Powerglide, TH350, TH400, 700-R4, 4L60E Nov 7, 2023 · You recently got the 4L60E automatic transmission for your new pickup truck but now your vehicle’s 4l60e transmission won’t move in any gear! No matter what gear you shift to, your vehicle is stuck and acting as if it’s parked. This is a 36% overdrive making this one of the best overdrive ratios Nov 30, 2003 · The PCM decided when to shift based on the position of the gear selector and things in addition to RPM, speed, like throttle position, etc. Replaced. Oct 2, 2023 · How can I fix a 4L60E that won’t shift out of 1st gear? To fix a 4L60E that won’t shift out of first gear, follow these steps: Check the transmission fluid level and condition. this video is a test drive showing how to check the 2nd and 4th gear GM 4-Speed Automatics 700R4/4L60E/4L80E There are two basic GM 4-Speed automatics: The light duty 700R4/4L60E found mainly in half ton and car applications, and the heavy duty 4L80E in the heavier applications. It then goes to 0 psi at times in overdrive (4th gear) which is when I am feeling the shudder. do not reuse it. My response to a post yesterday triggered a question from a member and he asked me to explain what happens to your transmission when towing in overdrive. Third gear is 1:1, with overdrive again engaged to create Fourth. This will be the biggest thing in 700R4 advancements in years. If I mash the gas, it downshifts and the slipping/vibration May 20, 2018 · Ok so using the trans current gear channel which I'm hoping was correct the truck does command first when starting out work the shifter through it shows to read right. A scanner would be real helpful as this trans is shifted by the computer and you need to see what the computer is doing or not doing. I think my problem is electrical but I'm not sure I'm hoping it's a easy fix. Replace band. 0-liter engine and 4L60E transmission has a complaint of second gear starts. Max line pressure should be at least 190psi at WOT in 1st or 2nd, 225psi is optimum. 06:1 First-gear ratio offering a theoretical advantage over the TH350’s 2. How to start root cause analyse Dear Tranny People, I am Electric girl and need some help of mechanics to do a propper root cause analyse. If the solenoid is fine you probably have damaged internal parts. 48 Second gear just like the TH400, the 4L60E has a 3. Having no reverse can be a tricky issue, especially if you happened to park against a wall. Nov 17, 2011 · have you tried to run it up fast enough where you can try a 1-3 shift? see if 3rd and or 4th gears are there at all? 200k is a lot of miles for a 4l60e. Mar 14, 2010 · if it helps. almost double the normal service life. Jan 23, 2011 · I didn’t really mess with the trans at all because the factory 231 adapter bolted right up to the 4l60e. When I left no 1st or 4th gear. Jan 30, 2024 · Hey Everyone, Starting a similar thread to the one available for the 700R4 but dedicated to the 4L60E as countless GM cars, trucks and SUVs were fitted w/them from 1993-2013/14 and often retro-swapped into Squarebodies. For a 4L60E, in first gear the forward clutch pack is applied, in second gear the band applies along with the forward clutch. Right now it randomly loses first gear capability. I got the no 3rd gear problem. Trans shifts into gear harshly, 3rd gear starts, manual 2nd available but no 1st, no 4th, and no TCC lockup: No power to transmission, or trans is in limp-home mode. No third or fourth regardless of manually shifting into those gears. If it went out your truck would start in 2nd gear even if you shift manually. 4L60E No Overdrive Diagnosis . This billet aluminum Super Servo is the 4th Gear apply piston & outer cover. Mar 6, 2024 · The 4L60E also suffers from issues where you’re unable to shift into 2nd gear. Oct 11, 2017 · With a short-tail TH350, there's an approximately 2. Elsewhere in this story we’ve listed the ratios of both the TH350 and the 700R4/4L60E. Dec 11, 2017 · No ABS lights, no CEL, speedometer is working, transmission is no longer in limp-mode! It continued to work like that for the whole week. correct 3-2 solenoid. For simplicity, unplug the transmission connector. Dec 1, 2007 · I have a 4L60E in my 94 TA and it will not go into first gear , it shifts fine from 2nd to 3rd to 4th and it has rev and there is no ses light but no first. 168 / 4. The 4L60E is a for speed automatic transmission with a . Turned it back on and drove it home no problems. 4L60E Problems: No Reverse. Yes 4th gear. Sometimes not at all. I built a switchbox to test the solenoids and it seems to work through 1st, 2nd and 3rd but when 4th gear is commanded is slips like its in neutral. The 3. Easy fix on rear of transmission, but xmember must come out to access VSS. I'm not sure about the springs removed from the valve body. you can rev it up in 1st, let off the gas and it will go into 3. May 17, 2023 · Since installation, I've only taken 1 short drive with the truck, and it definitely doesn't go into 1st gear wether I put the shifter in 1st or drive. When the check engine light is on, it will get no flashes from jumper. Your have to look at the tach, to notice. Mar 30, 2009 · I have a 1993 Suburban, 1/2 ton 4WD with the 4L60E transmission. The rpm's don't seem to drop that much, just 500 rpm's or so. 0 and 4L60E. No change. 696; R: 2. It has key parts: the converter, valve body, gears, and hydraulics. It shifts good into 2nd, 3rd, but when it shifts into 4th it slips and feels like it noses over. my speedo, tach, and other gauges worked as they should. Feb 18, 2011 · C4 Tech/Performance - Got the dreaded 4l60e no shift into 3rd or 4th thing - Hi guys. If you go here; 4l60e 12 pin conversion? - The Jul 16, 2020 · What is the problem with Gear Vendors? It effectively turns your 904 or 727 into a six-speed automatic with dramatically better ratio spreads than a 4L60E, especially with the 4L60E's massive, crappy dump between first and second. 06 First and 1. Everything works fine until you go to the third gear. ok well there is alot to say so ill try to break it into sections now for some info: 05 GMC Envoy 4. I read that the 4l60e has a limp mode if there is a problem the computor will put the tranmission in limp mode which is only 2nd and 3rd gear. Apr 5, 2017 · 4L60E Shift Solenoid Symptoms and Diagnosis. Here are 3 symptoms of a failing 4L60E transmission and how to diagnose the problems: No Third Gear – You put the vehicle in drive, start off the transmission, and shift to second gear. Monster uses this in conjunction with the 4L60E planetary gearset to allow the gears to turn at their peak Sep 30, 2009 · i had a weird fault on our 96 silverado but as well as no first it had no overdrive, no speedo, no gear shift indicator. Nov 14, 2014 · Installed rebuit 4L60E. This upgrade gives you better holding capacity in 4th gear. I've checked for codes, nothing. 00-to-1 for third; 0. Feb 13, 2022 · So I just dropped the pan. When the PCM calls for a second gear, it turns off shift solenoid A, so you shd see 12 volts at pin A. It turned out to be a faulty section of loom. Then 2nd gear stopped working and it only has D and OD no matter if the shifter is in 1, 2 or D. so i went through the entire trans to clean it out. It appears that can be removed w/o pulling transmission on some vehicles. A 1993 Chevrolet 1500 with the 5. I lost 1st gear but 2-4 worked fine. replaced radiator and drove truck and noticed a brief shudder in 4th gear that is intermitten. Nov 16, 2017 · This gearbox is different because it applies an overdrive to First gear to create Second. O. 70 (to determine the equivalent rear-gear ratio) equals 2. Nov 12, 2009 · Just had leaking radiator repaired at local shop. Rebuilt the transmission. 42:1 rear gears, Long tube headers to 3" sidepipes, cold air intake, completely ported MAF(not just descreened and devained), 52mm TB with airfoil, TB bypass, 160° Thermostat, Hypertech programming, no cats, no air pump, no EGR. 00; 4: 0. let off the gas to coast and it will calm down to about 1500 RPMs and then when I get back on the gas it will go right back to the top of third where it was. got it all back together now and i have no 4th gear or overdrive. Jan 18, 2008 · "The Next Big Thing". 2-4 band is slipping: Servo seals may be damaged. All bolts were pulled off n put in cardboard template n put back in so they should be good but ill check. He Jul 13, 2014 · I just rebuikt the 4l60e out of a 96 1500 and no reverse or overdrive. First rebuild was due to 3/4 clutch burn up was rebuilt by a local shop with a good reputation rebuild during pandemic Jun 26, 2007 · The passing (kickdown) gear was not operational either. 10:1 rear gear would be 10. A more serious cause of 1-2 shift failure on the 4L60E is a leak in the 2nd gear apply circuit (servo assembly or 1-2 Oct 30, 2017 · No It isnt slipping at all. It's not a speed sinser Apr 22, 2009 · If there is no power to the solenoid, trans will default to 3rd gear. Not looking good. To fix the 4L60E transmission not moving in any gear, you can follow the procedure below: Scan for Trouble Codes: The first step in fixing a 4L60E transmission not moving in any gear is to use a diagnostic scan tool to retrieve trouble codes from the car’s computer. Problems with no overdrive can happen because faults associated with these two Taking the 4L60E Into the 21st Century Performance World. Unplugged the trans connector to make it start in third and it runs and drives as if its in second gear. Sep 5, 2016 · Scott shows you his fix for P0756 code on my Tahoe. It will go shift back to overdrive but it will keep randomly dropping out of overdrive. 1971 Malibu, factory buckets/full gauges/console, 383 roller cammed small block, Turbo 400, 3. I hope thi Jun 15, 2011 · The First gear ratios on the 200-4R and 700-R4 are 2. It is important to understand a few things about how an automatic transmission works. 3L engine and 4L60E transmission that only has R, D and OD. I then manually shifted up to OD (at highway speed) but the transmission would only go to 3rd It's Vacume or electrical is your problem or passing gear cable. ODB1 and No codes. 64 to 1 overdrive ratio. Oct 16, 2017 · Taking off in 3rd gear, with no shifts either up or down, can sometimes be traced back to NO POWER getting to the trans. 3rd gear is 1 to 1, the output turns the same as the input. Multiply 3. Damaged overdrive servo – Leaks reduce apply force needed for OD. Did the jumper pin when no check engine light and I get the code 12 (normal). For instance, both the 4L60E and 4L80E Jun 2, 2015 · A G/V unit on a 60e, will basically give him 8 gear options, and make driving it at 75-80mph with 4:10's an option without spinning the engine at 3500rpm, and still keeping decent mpg's. Mar 27, 2010 · Hi, Put a line pressure gage (or visit a local Transmission shop) on the pressure test port and go for a drive to verify proper line pressure. I took out both engine and trans (seperately) and rebuilt BOTH !! Reman'd TC, and Full rebuild kit for the 4L60E transmission from Ebay. if you drop the pan to replace 1 then do all 4. The transmission guy claimed a lifetime warranty, so hopefully he honors it. There are no other switches, sensors coming from gear shift to PCM that I can find in schematics. Trans shifts into gear harshly, the car feels sluggish off the line, No 1st, 4th, or TCC lockup available, Manual 2nd, 3rd, and Reverse are only available gears, CEL is on: Mar 15, 2005 · Anyway I was told by GV to not change my gears. 5-inch difference in overall length, bellhousing face to tailshaft, compared with the 4L60E; this means you must shorten the front half of your Mar 18, 2011 · What is a 4L60E Transmission? The 4L60-E is an automatic shift, four-speed overdrive, longitudinally positioned transmission. There could also be an issue with the direct clutch assembly, but it seems as though you would also have problems with 4th and reverse. Then I have to force it into first again. The GM 4L60E / 4L65E / 4L70E Transmissions. 64 May 4, 2018 · One of the most common problems with the 4L60E is that the reverse gear will go out. Roomies Modus reports the computer is commanding a 4th gear shift but there's absolutely no mechanical response or attempt to shift. 4L60E, 4L80E—there is a lot of overlap among different models. 16:1, which is not realistic. No electricity sent means no gear. Other than that the transmission works fine, I don't notice any slipping. Oct 30, 2021 · This vehicle with a 4l60e transmission did not move forward in drive gear. Reverse would probably work with a bad VSS. An overdrive unit is designed to maintain cruising speeds of the vehicle while simultaneously reducing the RPM produced in order to better fuel economy and prevent excess noise and wear made by the various parts of the transmission. 2 i6 4x4 with 141k As far as I can tell the trans is original (no markings on valve body) OK now to explain the problem (also the dipstick never wiped clean it always has a black stain with May 5, 2018 · 4L60E No Overdrive Diagnosis. Mar 4, 2018 · The good news is that either way, you win. No failure codes stored which give me a hint. As the 4L60E ages, one of the most common problems that it develops is that it won’t shift into overdrive anymore. 625-to-1 for second; 1. When datalogging, the current torque signal pressure is showing to never really get above 35-40 psi and will only jump to about 90 psi when I'm at WOT. GM 700R4: Advanced Overdrive: Improved gear ratios for driving efficiency. when shift into 3rd gear manually the truck does not shudder. Im hoping the reverse booster piston has an issue but what about overdrive. The transmission must be removed and rebuilt. 6. the ignition switch was the fault, the section of loom that goes from the ignition to a multi plug under the dash. no RPM drop where you'd expect a shift into 3rd) you may have a worn/broken 2/4 band, a leaking 2/4 servo (they're separate but on the same pin), maybe a shift solenoid not fully stroking in the bore. The police package (9C1) B-body cars featured a First Gear Block Out (FGBO) Plate on the transmission housing to prevent drivetrain damage. First let me say that I’m a transmission tech. The computer shows that it is shifting into 3rd and you feel it shift Oct 7, 2018 · I used Tuner Pro RT and found that I am running, what appears to me, to be low. 4l60e Shift Solenoid Locations. Jun 5, 2011 · trans came in with a slipping torque converter and pump bushing and tailshaft bushing worn. To turn OD off, just select 3 on the gear selector. It has been considered to be the best rendition of the finest overdrive automatic transmission ever produced. The car runs fine in 1st and 2nd and then freewheels like it's in neutral in 3rd. 02| First out was the driveshaft. Basically the GV will change the 4l60e from a normal long 4 speed to a close ratio 8 speed. Fresh dex/merc and filter was put into the pan before KOH. Rear-wheel drive vehicles commonly have this kind of automatic transmission with four speeds called the 4L60E. 3 and 4l60e. 55 to 1 second gear, 1 to 1 third gear and . I can put it in first in manual mode, then put the shifter in drive and it will drive like normal (upshifts and downshifts) until I come to a complete stop. Other symptoms include slipping gears and grinding noises. i had a stuck #8(i think) check ball in the spacer plate so i replaced the spacer plate with a transgo This video is for you to diagnose the problem with your 4L60 transmission when 3rd or 4th gear won't engage, we show the parts that typically are bad when yo Apr 22, 2021 · new update, changed input shaft seal. 294; Knowing these gear ratios informs you if it is ideal to swap one of these transmissions for the other. Mar 30, 2018 · The 4L60E has been around for a while, and most builders have rebuilt so many of these they can do them in their sleep. Dec 28, 2020 · What is a 4L60E Transmission? The 4L60-E is an automatic shift, four-speed overdrive, longitudinally positioned transmission. Jun 14, 2012 · That is, until it burns up completely, which won't take long. i have a 99 s10 4. 98 gm 4x4 4l60e. These will have a 2. Has anyone experienced this before and if so what did you do to fix it?. It will get stuck at 2000 rpm and even if I put the pedal on the floor it will not rev any higher. reccomended repair per gm is to replace sun shell , reaction carrier thrust bearing, and thrust washer and the usual suspects Apr 19, 2019 · With EB ON and in 6th gear, trans goes into 4th gear and truck eases to a complete stop. Examine and test the shift solenoids. the band is not broken, checked it out and it tightens up on the drum when i push on it. 3 and 4l60e that wont shift into 2nd or 4th gear. When you put your vehicle in third gear, the engine runs away as if it’s in neutral. 48 First and 1. (its Louisiana, who cares). However, in first gear shift solenoid A is also on. Found what looks like a pebble in there. Good luck. No binding on 1st gear shifter as I have seen some report. 4 Forward gears Longitudinal mount (rear-wheel drive) 60 Relative torque rating 360 lb ft Electronic valve body. Jan 12, 2009 · The first thing I would do is check is your 1-2 shift solenoid. The cause Sep 24, 2023 · First gear, A is ON, B is ON Pins A and B shd read zero volts. 00, 4th - 0. the 4l60e has 4 of then in all. Both solenoids are " electrically on" for first gear. Jul 29, 2023 · One common sign of a 4L60E overdrive problem is that the transmission will not shift into its highest gear, despite the engine running smoothly and other gears functioning correctly. R&R. Below we will cover the most common problems that cause reverse to fail. Also 1st gear is sluggish, I have to let off the gas so it can catch. 93 Octane Only!!! Sep 16, 2014 · hey guys, so i have an 01 sierra 1500 with the 5. I get a service engine soon light and no 1st or overdrive. May 27, 2018 · 2nd gear is good? 2/4 share a band, so if you manually shift the trans and it goes from 1st to 3rd (e. 4L60E Troubleshooting. The truck seemed to start off in first gear on an initial cold start but would stay in second gear at a stop or even when shifted out of Drive to Park or Reverse and then back into Drive again. Aug 1, 2009 · Bought a 95 Siverado 4wheel drive. The GM 4L60E automatic transmission is prone to issues shifting into overdrive (4th gear). These codes can provide Jun 9, 2024 · Some owners report being unable to shift from first to second when in drive or shift into reverse or overdrive gears. I'd have to see where the springs came from. 08:1 differential and a 5,500 RPM engine speed limit. No solenoid for second gear 2-3 energized for third Both 1-2 and the 2-3 for 4th gear. 66 to 1 first gear, 1. put back into 4th gear/overdrive will get intermitten shudder for 1-2 seconds at steady speed. Servo seals may be damaged (can be fixed without removing trans. 73 rear end, underdrive crank pulley, overdrive alternator pulley, 411 swap with a custum tune, electric fan conversion, hypertech power programmer, viper push button starter, caddy cluster, 6000k HID Feb 1, 2020 · I have a 98 k1500 with a 4l60e and 164,000 on it. When the truck is in overdrive and climbing a slight hill and needs to downshift is when I feel it. I cant launch it or "burnout". The truck is a 1996 K1500 and I am the original owner. So if you have first gear it can not be a shift solenoid. Dec 27, 2023 · How GM’s first overdrive gearbox spawned the 4L60E, and more. No noise, no nothing. 168:1. This leaves you driving around a car or truck that screams down the road. Sometimes the check engine light kicks off and everything works great. It will drive fine and stay in overdrive for a good 10 miles from a cold start, but then once it is warmed up it will jump out of overdrive and downshift. If your 4wd is electric . Installed them today and still no 1st or 4th. The 4L60-E is found in nearly every GM rear-wheel-drive application, including the C/K Truck, Sonoma, Jimmy, Tahoe, Yukon, Astro, Safari, Suburban, Bravada, […] Jan 18, 2010 · I have the same issue '00 GM Jimmy, 4l60e, and no second gear, shifts to third when let off gas in first, second acts like neutral it will shift into it when shifting down and there's just nothing there, I was hoping just a solenoid, but dudes story a above scares me lol. May also have worn boost valve. jchvssoz bssulu euiy fqwfj tdms texiyq iqwzder ktjwo xrruifi xmyw