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A cheap and easy fix if your 4L60E automatic trans is shifting hard or shifting late. Most common is a hard shift from 1st to 2nd gear. I made another video ...Poor line pressure rise due to a leaking boost valve, clogged EPC filter screen, failing EPC solenoid, or worst case: leaky seals throughout. The seal restorer may fix the last problem but probably remove and rebuild if needed. 17. No forward movement in OD or D, but L2, L1, and R work: The forward sprag is broken.Fixing my 4L60E Auto transmission, the problem was hard shift from 1 to 2 gear, but otherwise it was good. This worked for me, if you do it, then you do it a...This is a late model 4L60E also known as a 4L65E, compatible with LS style engines rated up to 500hp/450tq, identified by having a single bolt-hole at the very top of the bell-housing INCLUDED FREE - No Fault Warranty A 1-time no questions asked repair or replacement. ... The 30% overdrive will give a 30 to 40% increase in gas mileage on the ...Let us have a look at the systems and potential problems in a 4L60E that can cause a harsh 1-2 shift. 1-2 Shift Control Functions: Failsafe operation. Line pressure control problems. Accumulator valve system. Servo apply area. 1-2 accumulator piston and spring. #8 check ball, 2nd gear feed orifice. Servo cushion spring.Gregg Nader. 700-R4 (4L60) Performance Transmission. Introduced in 1982, the 4-speed Overdrive GM 700-R4 transmission — also known as the 4L60 — remains a popular option for street/strip performance applications. Most of the unit's internal components are shared with the '93-later 4L60-E, which was regularly improved/revised up through ...HERCOO 4L60E 4L65E 4L70E Transmission Shift Solenoid Kit Valve Set 1-2 2-3 A&B Compatible with GMC Chevrolet Trucks 1993-UP. ... 60 mph in overdrive. This is a messy job, so first I pumped out the fluid that was in the pan trough the dipstick tube, then I removed the pan. Left a big plastic sled under the truck to catch the remaining dripping ...Buy AcDelco Shift solenoids:https://ebay.to/2EwTy1a or https://amzn.to/2q4TImhWant to send us stuff to try:Scotties Hobbies2455 N Naglee Rd #143 Tracy, CA. 9...My car is an 02 z28. before I put the converter in overdrive worked fine. I installed a 3600 stall and it works great in 1-3 but will not shift into... in this thread in this sub-forum in the entire site. Advanced Search ... 4l60e no overdrive after converter install. 3302 Views 17 Replies 6 Participants Last post by Jarred Hodges, Feb 23, 2013.Basically the GV will change the 4l60e from a normal long 4 speed to a close ratio 8 speed. I was told if I could hook in first over then my ET would drop .5 in the quarter. Yeah I know it sounds like BS, but look what a th400 with a closer gear ratio does. I still need some time to start the project.4L60E torque convertor shudder. I have a 1993 Suburban, 1/2 ton 4WD with the 4L60E transmission. In 4th gear, overdrive, under load the transmission will shudder. If you press the brake pedal lightly or shift out of overdrive the shudder will quit. Other than that the transmission works fine, I don't notice any slipping.The 4L60e transmission is an electronically operated 4-speed transmission designed for vehicles with longitudinal engines. It utilizes four forward gears and one reverse gear and has a vehicle weight rating of 6000 lbs. Before adding the recommended 4L60e transmission fluid, this transmission weighs 146 lbs.R&R = Remove & Repair (or Rebuild) = Transmission must be removed to fix the problem and may have to be rebuilt or replaced. Common failures on 4L60E, symptom < cause > any possible repair: 1. Slow, slipping or no reverse: “lo-reverse” clutches are worn out, fluid leak in the reverse apply circuit, or broken sunshell.I have one in my truck. heres some more info about all the common 4L60E problems n solutions. 8. 1st and 3rd only, no 2,4 or R: Sunshell is fractured or splines are sheared off. Transmission must be removed and rebuilt. Try not to run or drive the car or further damage could result.95 GMC Jimmy 4L60E no 2nd or OD 4L60E. 95 GMC Jimmy. 4.3w engine, Mid size SUV. Has 1st and 3rd and reverse. Strong in these gears but no 2nd or OD. Replaced shift solenoids but same problem. Seems to lock up converter in D when on highway. Have run this truck a year with only 1st and 3rd, towing everything imaginable without any problems ...Mar 31, 2009 · Common failures on 4L60E, problems and possible repair. 1-2 shift is delayed and harsh, may not shift into Over Drive CheckThrottlePosition Sensor (TPS).for smooth and linear electrical response over the entire range of motion. If not, replace.Had 97 4l60e transmission rebuilt. New 1-2,3-4 solenoids, new ecm, new fluid,filter. No fuses blown, no check engine light, no codes. Will not shift out of 2nd gear to 3rd or 4th. Not even manually … read more4L60E shift problems. With no previous transmission problems, I was on a recent trip and I noticed the rpm on my tach was running about 2500 rpm at 60mph in overdrive (normally runs in the 1700-1800 rpm range at this speed). I manually downshifted to 3rd gear then back to overdrive but rpm remained at 2500. I continued at this pace for …Trans shudder, 4L60E. Hello All, I am new to this forum and hope you can help me here. I also look fwd to being able to contribute on other issues. so here it is. Issue surfaced after trans broke and was replaced. Trans replaced, torque converter shudders between 40 and 50 when applying throttle but not enough to down shift.The other thing that really hurts the input sprag is another part of GMs design. When you launch a car with a 4L60E in either O/D range or D range, you are putting the whole weight of the vehicle completely on that input sprag. If you move the selector to manual 2nd or manual 1st, you apply the over run clutches which help hold the input sprag ...If the TFT sensor is working, and the trans is over-heating, th4L60E 3-4 Clutch Failure and Planetary Gear Solved TC bad. 2008 Silverado 5.3l with a 4L60e tranny. When the truck is in overdrive and climbing a slight hill and needs to downshift is when I feel it. 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. If I mash the gas, it downshifts and the ... This 4L60E-3 Reprogramming Kit fits 1993 to 2008 Gen Compatible with Chevrolet / GM 4 Speed Overdrive Transmission Torque Converters That Use Metric M10-1.5 Bolts. 4L60E 4L65E 4L70E 4L80E 700R4 200-4R 4T60E 4T65E Allison 1000 2400 ; Comes with 6ea Grade 10.9 Flange Hex Head bolts M10-1.5X16MM Clear zinc to keep them from rusting or corroding (Some transmissions will only use 3ea). Base pressure at idle in P,N,OD should be around 70p

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.. May also have worn boost valve. It is possible to remedy a fluid...Ed Lee. A 2006 Chevrolet Suburban C1500 was brought to a transmission shop. The vehicle was equipped with a 5.3L V8 gas engine and a 4L60-E transmission. The customer complaint was "slipping in reverse.". The vehicle had 128,967 miles on the odometer, so the customer was sold a complete rebuild, including a rebuilt torque converter.Here is how you can keep 4L60e transmission problems away: Change the fluid and filter every 30,000 miles. The transmission fluid should have a reddish color. If it is darker or smells, you need to change the transmission fluid. You will need around 5-7 quarts of transmission fluid each time you change it.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. Torque multiplication is hugely important in the lower gears, so I wouldn't give it up just for an overdrive gear on top.Most usual 4L60E failures

4L60E torque convertor shudder. I have a 1993 Suburban, 1/2 ton 4WD with the 4L60E transmission. In 4th gear, overdrive, under load the transmission will shudder. If you press the brake pedal lightly or shift out of overdrive the shudder will quit. Other than that the transmission works fine, I don't notice any slipping.The 3rd clutch is one of the weak areas of the 4L60, and it can't be fully bulletproofed (design limitation), although HD clutches are available for it and will help ……

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Oct 2, 2023 · To fix a 4L60E that won’t shift out of first gear, . Possible cause: EZ-TCU GM Overdrive Transmission Controller; 4L60E, 4L65E, 4L80E & 4L85E; Up t.