1 post · Joined 2012. #1 · Jan 18, 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 ...This thing burned up clutches very quick, less than 4 seconds total of WOT. Figured it didnt have enough line pressure in it so it couldnt keep clutches applied. Shifts very soft although should be a very harsh shift. Put mech gauge on it, line pressure seems very erratic, moderate throttle gets 150-200 psi, but when you put it under full load ...You have a broken reverse sun shell. Very common problem in these trannies. The long time to shift out of first is because 2nd is gone too. You are shifting right from 1st to 3rd. The good news is a new shell is only about $65-$75. The bad news is that the tranny has to come out and be torn down to change it.Hi guys. I have a 4l60e ran by an optishift unit in my 92. I got the "no 3rd gear" problem. The car runs fine in 1st and 2nd and then freewheels like it's in neutral in 3rd. The computer shows that it is shifting into 3rd and you feel it shift out of 2nd(where it's engaged) into 3rd where it doesn't go.Need Help - 5.3/4l60e swap not shifting. Need some help/Idea's. I removed a running driving complete 5.3 motor/trans out of a 2000 Silverado 2wd. I installed it into a 99 S10. It starts right up and idles fine. When I drive it, it seems like it stays in 2nd gear and never shifts up or down no matter what rpm I reach.ScottiesHobbies.com Presents: Follow along as I replace the 3rd accumulator check capsule. Stay tuned for replacement and add-on Sonnax servo install.Parts l...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...There are a few potential causes for the issue you are experiencing with your 2006 Chevy Silverado 1500 4x4 and the 4l60e transmission. Here are a few possibilities: Clogged or dirty transmission filter: If the filter is clogged or dirty, it can cause problems with the transmission, including a loss of reverse gear.Another 4L60E owner added: “The 4L60E is as common as the TH350 except it is newer and bigger.No, its definitely not the most defective transmission on the road. Most all vehicle manufacturers have their “Problem children”. When I was at the Oldsmobile GMC dealer back in the 80’s it seemed that all I ever worked on was the …Usually found in General Motors vehicles, the 4L60E is an automatic transmission system that controls up-shifts. This transmission can be found in cars, light trucks and SUVs from 1993 until present day. It has four forward gears and one reverse gear, as well as a maximum torque capacity of 360 ft.-lbs.The transmission options that were available to the 2004 Silverado were as follows: MG5 - This is the NV3500 manual transmission. It is the only manual available for the 2004 Silverado. M32 - This will be the 4L65E transmission, which is an upgraded version of the 4L60E. M30 - This is the 4L60E automatic transmission.Both the 4L60E and 4L60 have the same number of gear ratios as well as the same number of gears. Common 4l60e Transmission Problems Below is a partial list of some of the most common 4L60E transmission problems: Slipping, Slow or No Reverse Available Many owners find that the “lo-reverse” clutches are beat up or worn out.If the 4L60E is not shifting through the gears like it should be and the service engine soon light comes on than you’ve probably entered limp mode, limp mode is gear 2, 3, and reverse. It will have no overdrive and no first.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. It appears that can be removed w/o pulling transmission on …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 ...This is actually a fairly common problem with the 700R4/4L60E overdrive transmissions but luckily the solution is also relatively easy. You didn’t mention what vehicle this is in, but the solution is still the same. It sounds like the torque converter clutch solenoid has stuck or failed in the open position.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. 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.FIXED-4L60E loud grinding noise! Hi guys, its been a while since iv last been on here. well my truck and tranny have been running great up until yesterday. on my way out to camp all the sudden my truck starts making this awfull grinding noise. it only does it in drive once the truck reaches 10kph and immidiatly in reverse and it wont move in ...4L60E-3 Features: 4L60E 1993-08 Reprogramming Kit with Manual Shift Control or Gear Command. This TransGo Reprogramming Kit provides full manual control for upshifting and downshifting 1st through 4th gear, there are no automatic shift functions retained. This kit delivers short firm shifts for performance as well as greater overall durability ...Elsewhere in this story we’ve listed the ratios of both the TH350 and the 700R4/4L60E. While the 3.06:1 First-gear ratio would appear to be an advantage over the TH350’s 2.52:1, 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.1998 Camaro Z28 - Bright Red, 6.0 TR224, 4l60e, 3.42 Eaton TrueTrac 1989 Camaro IROC-Z Convertible - 355 big tube TPI, WC T5, 3.42 Zexel Torsen, CTS-V/C4 brakes 1955 Bel Air 2 Door Post - 357 TPI, Muncie M20, 4 wheel disc 2006 Saab 9-7x 5.3i Daily DriverInstallation and Operation Manual for 4L60E, 4L65E, 4L70E, 4L80E, and 4L85E transmissions. 2 US Shift Transmission Control System instruction and operation manual. www.USshift.com Baumann Electronic Controls, LLC. Phone: (864) 646-8920 Email: [email protected] there's no overdrive, but the TCC engages, look for 1. Faulty wiring to the trans including poor connections at the electrical plugs 2. Failed 4th gear solenoid A scan tool can tell you if the engine is misfiring; and if the TCC or 4th gear (Overdrive) is being commanded "on".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 …Engine out of time will always effect shift point if it is severe enough. IT IS NOT the transmission causing the problem. This person has no shift up to third, not a rough shift. This person has no shift up to third, not a rough shift. SOURCE: 1995 GMC 2500 4x4 wont shift into 3rd or overdrive most of the times.Engine out of time will always effect shift point if it is severe enough. IT IS NOT the transmission causing the problem. This person has no shift up to third, not a rough shift. This person has no shift up to third, not a rough shift. SOURCE: 1995 GMC 2500 4x4 wont shift into 3rd or overdrive most of the times.95 C1500 electrical issuesWont shift into overdrive. And reverse wont work. - Chevrolet 1999 K1500 question. Search Fixya. Browse Categories Answer Questions ... 4l80e no overdrive 4l60e no 3 4 shift no reverse in 4L80E 4l60e rebuild ide failure failed clutch won overdrive ...No reverse, 2nd, etc. | GM Truck Club Forum. 4L60e Only 1st gear. No reverse, 2nd, etc. New here from Boonton Twp, NJ. I rebuilt the trans on our 2000 k1500. My first rebuild. Worked great for several hundred miles. Our daughter took it to the store, then called to tell me it wouldn't go into reverse. Said forward worked.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...The 4L60E is an automatic shift, four-speed overdrive transmission that has the reputation of being one of the best automatic transmissions ever made. Before the 4L60E was produced, there was another trans called the Turbo 700R4. This transmission was introduced in 1982, and the 4L60E transmission is a branch off this model.The 4L60E is an automatic shift, four-speed overdrive transmission that has the reputation of being one of the best automatic transmissions ever made. Before the 4L60E was produced, there was another trans called the Turbo 700R4. This transmission was introduced in 1982, and the 4L60E transmission is a branch off this model.There is one more possible issue. The case of the late 4L60e is 1-5/8" shorter than the 700-R4. Were the early T case adapters 1-5/8" shorter putting the T case in the same place? Just something else to consider before you end up finding an overall length problem. One driveshaft would be too long and one too short.4l60e after rebuild is still slipping and new issue no overdrive. Hi. I had my transmission slipping in 3rd and with hard shifts 1-2 and R. also put transgo shift kit (orange box without reprogramming) and. 3-2 solenoid because old was cracked but i remember looked different (colors) and of course corvette servo.There are a few potential causes for the issue you are experiencing with your 2006 Chevy Silverado 1500 4x4 and the 4l60e transmission. Here are a few possibilities: Clogged or dirty transmission filter: If the filter is clogged or dirty, it can cause problems with the transmission, including a loss of reverse gear.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.Description. 4L60 / 4L60E / 4L65E / 4L70E 2.84 Ratio Input Carrier Kit, Sonnax 77284-K. The steepest first gear ratio of any four-speed automatic (3.06) belongs to the GM 4L60 (700-R4)/4L60-E family of transmissions. The shift from 3.06 ratio (1st Gear) to 1.63 ratio (2nd Gear) is a dramatic RPM drop that causes performance engines to fall out ...If the TFT sensor is working, and the trans is over-heating, the TCM will not allow 4th gear operation. As Kutzler said above, pull the 2/4 servo cover and inspect the small piston, and sealing ring, that ride inside the cap. Damage to the 4th piston assembly will cause a solid 1,2,3-but slipping, or no, 4th.The 4L60E is the latest in a long line of durable, high-function GM overdrive automatics that have come our way since the 1960s. The TH350 three-speed automatic had long been a mainstay with Chevy ...The 4L60/65/70E isn't a bad choice - it doesn't require cutting up the trans tunnel and has been used in plenty of stuff, from C5 Corvettes to Silverados. It's not as tall or short, which accounts for the two other gears in the 6L80E. The 4 speed isn't the sexy choice, but maybe I need safe more. So I'm torn.Installation and Operation Manual for 4L60E, 4L65E, 4L70E, 4L80E, and 4L85E transmissions. 2 US Shift Transmission Control System instruction and operation manual. www.USshift.com Baumann Electronic Controls, LLC. Phone: (864) 646-8920 Email: [email protected] HD Transmission Custom Built Master Conversion Package 4WD, Non-LS engines, 1pc Case with Free Transmission Fluid. $6,423.75 $5,949.00. Sale. Add To Cart. 4L60E Transmission Conversion Kit, 4L60E Transmission Swap Kit. Monster Transmission 4L60E Conversion Package is complete with everything you need to put your ride into Overdrive!Buy the whole thing and replace the whole shebang. If you don't want to here's what you do. Get a Infrared temp gun after driving the truck around the block. Park the truck. Disconnect the connection and find pins L and M. Check resistance and use the temp gun to get a temp from the bottom of the pan.Now its shifts smoothly but it feels like slipping in any gear, like no line pressure and it wont engage TC. sometimes it catches over drive - rpms go down but when I am around 1500 rpm it "shudder? feels like "engine missfire" it pulls and for a second like brakes are applied to a driveline. with pwm. before assembly. that part was not changed -17-ketosteroids are substances that form when the body breaks down male steroid sex hormones called androgens and other hormones released by the adrenal glands in males and females...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 ...J. JCLawn and more Discussion starter. 5482 posts · Joined 2009. #1 · Oct 20, 2013. So my 93 1 ton with a 4l80e will not go into forth or overdrive. When I bought it a week ago it would go into both when the trans got to 175 then it would go out. All I had to do is flick the key and get it back. Once it got to 180 it would not come back.The reasons why your 4L60E transmission won’t move in any gear are: 1. The Transmission Fluid is Dried Out. The transmission needs lubricant (fluid) to function at full capacity and when there’s no fluid it won’t work. The lack of fluid in the transmission could be due to a leakage, if the leakage isn’t noticed in time, the fluid ...Garage Series: A Much Needed 4L60E Transmission Controller Upgrade. One of the best decisions to make for a classic musclecar is to enhance your driving with upgrades to brakes and …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.EZ-TCU GM Overdrive Transmission Controller; 4L60E, 4L65E, 4L80E & 4L85E; Up to '09. $765.95. Easy overdrive GM trans control • No laptop, previous tuning experience or tuning required. Adjustable based on load, speed, RPM • Stores (2) custom calibrations • Optional paddle shifter. Built-in self diagnostics • Includes: trans control ...TPG's favorite national parks — a month-by-month guide to help you plan your next visit. America's beloved national parks have never been more popular. With 63 national parks offer...Pro Super Overhaul Kit; '93-'06 GM 4L60E (30-Spline) All SBC/5.0/5.7/4.3L Applications (2WD or 4WD) Except LT1/LS-Series . 378951. $402.95. Add to Cart. Add to Wish List …C. cool78259. 5 posts · Joined 2010. #11 · May 31, 2010. 4l80e no od fix. the tps throttle positioning sensor will keep your transmission from switching to od. i have a 93 chevy 6.5td with a 4l80e.. I also have a fix that will bypass the tps and allow your truck to go into od until repairs can be made.4L60E Not Shifting into 4th Gear. Hello all. 2007 Silverado 1500 LT , 4x4 z71, crew cab, 5.3 . My buddy and I just rebuilt my 4L60E with just some new clutches, steels, shims, filter, and gaskets, nothing to in depth. My buddy used to work for GM. It shifts good into 2nd, 3rd, but when it shifts into 4th it slips and feels like it noses over.1999 Chevy Silverado 1500 4.3 4L60E Code scanner showing P0753 1-2 shift solenoid circuit, takes off in 2nd gear and shifts to 3rd and has no overdrive. Have replaced wiring harness and still no 1st o … read moreMy 94 with the 4L60 (not 700R4 or 4L60E) lost 2nd but retained all other forward gears and reverse. It would also shift into 3rd when feathering the throttle around 25-30 or so. It ended up getting a junkyard valve body and working fine. 2006 Silverado 2500HD ECSB - LBZ, Skrait pipe, LML 18s, 455k miles :bye:#1 · Aug 1, 2009. I'm hoping someone could point me in the right direction. My 95 4WD K1500 recently lost first and overdrive. At the same time, my speed and tach quit …Dec 23, 2017 · 4l60e no third or drive. 1 & 2 work fine- in overdrive the engine revs going to 3rd-let off gas & it shifts, but no 4th gear. Will not shift to third in drive at all. I changed the shift solenoids (both) and the VSS- still not shifting properly. No metal in the pan when I dropped it- fluid at bottom of pan was thick and sludgy.One of the most common 4l60e torque converter problem has to do with the converter lock up. The easiest way to diagnose a bad or failing torque converter clutch is when there is no lock up. The 4l60e torque converter is designed to lock up primarily in 4th gear (can also be enabled to lock up in 3rd gear as well), so when it doesn't lock, it's quite noticeable.4l60E: 4l80E: Type: 4 Speed Automatic Overdrive: 4 Speed Automatic Overdrive: Applications: GM Cars - GMC, Chevy/Chevrolet, Buick: GM Cars - GMC, Chevy/Chevrolet, Buick: Gears: 3 + 1 Overdrive 30%: ... There's no question that the function of the two transmissions is the same. They are both meant to control gears and are used in GM vehicles.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. 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 4L60E is a step up from the earlier 700R4 make. The original 4L60 was introduced in 1990, while the electronic version was launched in 1993. The name was aimed to reflect the new 4 speed with a matching engine and a gross vehicle weight of up to 6,000 lbs. The 4L60E uses solenoids and electronic actuators to control the clutch, valve body ...6. No 3rd or 4th gear: "3-4" clutches are worn out. R&R. The car is safe to drive (in 2nd if you have no 3rd) until you can get it fixed. R&R = Remove & Repair (or Rebuild) = Transmission must be removed to fix the problem and may have to be rebuilt or replaced. S.4l60E with no third gear. trans came in with a slipping torque converter and pump bushing and tailshaft bushing worn.also found the 1-2 accumulator cracked with a broken spring. so i went through the entire trans to clean it out. replaced the normal seals, screens, clutches, steels, and band. seperated pump and cleaned along with the valve …C4 Tech/Performance - bad stumble in overdrive with 4L60E? - after driving to Chicago and being in stop and go traffic all day when the highway opened up so I could get up to 60 or so I was thrilled but we slowed to around 45-47 and the RPM were at 1000 and it bucked hard when given any gas. put it in D and no...Oct 19, 2014 · 4L60E no overdrive, all other gears fine. Hi, I have 93 Suburban 2WD 350 w/ 4L60E. Truck has 190k miles on it w/o any rebuilds. So - it's had a long life, I use it for going to hardware, dump, nursery, etc. It has gradually started shifting hard and lost overdrive a while back. I assumed it was just toast but then read about the many electrical ...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 ...50. See if there is a PID for the actual 1,2,3,4 pressure switches and see if its actually is in 4th gear. It may say current gear 4th but that is just a command to be in 4th gear. You want to see if the 4th gear circuit is pressurized by the state of the pressure switch. 12-02-2020 #3.This 4L60E-3 Reprogramming Kit fits 1993 to 2008 General Motors vehicles equipped with the 4L60E, 4L65E and 4L70E automatic transmission. Common complaints on this transmission are TCC slip or shudder, code P1870 or P0894, harsh 1-2 shift, double bump shifts, 2-3 flare up, burnt 3-4 clutch plates as well as inconsistent pressure boost problems.Here are a few specs for the 4L60E: The length comes in at 21.9″. Dry weight is 146 lbs. Cast Aluminum case. 360 lb ft (488 N.m) maximum torque. 8.4 qt. (9.64-inch torque-converter) or 11.4 qt ...To help cure everyone's winter woes — at least where the 4L80-E OD roller clutch is concerned — Sonnax offers Smart-Tech overrun clutch valve kit 34200-40K for '97-later 4L80-E and 4L85-E units. This patent-pending kit delivers exceptional protection against failure by applying the overrun clutch in all ranges other than 4th Gear ...1 post · Joined 2012. #1 · Jan 18, 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 ...Now its shifts smoothly but it feels like slipping in any gear, like no line pressure and it wont engage TC. sometimes it catches over drive - rpms go down but when I am around 1500 rpm it "shudder? feels like "engine missfire" it pulls and for a second like brakes are applied to a driveline. with pwm. before assembly. that part was not changed -Unit: 4L60E. One of the best and easiest tools that I use almost daily for diagnosing transmission problems is Passbook or application-chart information. When I have a shifting issue, a review of what solenoids and friction elements are applied in each gear can let me see what areas of the transmission the problem may be caused by, so I can ...THEN INSTALLS CLUTCHES AND STEELS. NOW THE STEELS GET LOCKED INTO THE CASE BY THE TABS, AND HE ALTERNATES THE STEELS WITH THE FRICTION DISCS, OR CLUTCHES. THEN HE JUST KEEPS ON STACKING PARTS, BUILDING UP A TRANSMISSION LAYER BY LAYER BY ADDING THINGS LIKE THE SUN GEAR AND OUR UPGRADED SUN SHELL.Based on outstanding service from both of my stock 4L60E's, I'd say without a doubt to install the full Transgo HD2 kit. Since it sounds like you're going to run a stock TC, use no shims in the 1-2 accumulator and go with minimum recommended hole size for the 2nd gear apply in the separator plate. I also wouldn't run without the 093 (Vette) servo.As this evolved it got to the point where shutting the engine off and on wouldn't correct the "No OD". At the moment I have No OD or lockup and now the trans is slipping in reverse. 1st, 2nd and 3rd work normal when cold. When things warm up a bit it only has 1st and 2nd. Here's some the addition info about the truck.Most usual 4L60E failures4L60E: 2-4 Servo Cover Stuck In Case. A quick Google search reveals that there are a number of people that have had trouble removing the 2-4 servo from thei...RayVoy. 19170 posts · Joined 2012. #2 · May 28, 2015. The 4th gear is overdrive. The definition of overdrive is when the transmission output turns at a higher rpm than the input. 3rd gear is 1 to 1, the output turns the same as the input. The lower gears let the output turn slower than the input. To turn OD off, just select 3 on the gear ...13652 posts · Joined 2009. #2 · Oct 22, 2020. The 4L30e is a 3 speed + Reverse transmission with a retrofitted overdrive section to provide a 4th gear ("Overdrive") capability. The overdrive section contains the Overrun ("Direct") clutch, the Overdrive (4th) clutch, a uni-directional mechanical clutch and a planetary gear set.4L60E Piston Overdrive Clutch. In the 4L60E transmission, the pistons work as part of the clutch pack, activating when fluid pressure is applied and locking the unit together so the wheels can be driven. When pressure ceases, the piston will disengage and the wheels will stop turning. The pistons that are provided each have a different location ...GM 4L80E/4L60E Reference Material, Manuals, FAQ's/Parts List. (Updated November 2018) ... Harsh Shifting/No Up Shifting Into Overdrive - One of the largest concerns frequently mentioned is the dreaded harsh shifting and no up shifting into Overdrive. For trouble shooting information Click HereIn today’s digital age, libraries have evolved to offer more than just physical books. The New York Public Library (NYPL) is one such example, with its innovative digital platform ...4th Gear Super Hold Dual Servo Kit. Sonnax 4th Gear super hold dual servo kit 77767K features 40% more apply surface area for greater holding power in GM 4L60 (700-R4), 4L60-E, 4L65-E and 4L70-E units. Vehicles with these transmissions often exhibit poor 3-4 shift quality and experience band failure in performance applications.Is 4L60E 3 or 4 speed? Usually found in GM rear-wheel drive vehicles, the 4L60-E is renowned as a reliable and strong transmission.It has been used throughout many generations of General Motors vehicles and has become an iconic part of automotive engineering. This amazing piece of technology combines a four speed overdrive automatic transmission with electronic controls to provide crisp shifts ...The 4L60E is the latest in a long line of durable, high-function GM overdrive automatics that have come our way since the 1960s. The TH350 three-speed automatic had long been a mainstay with Chevy ...Jul 17, 2012 · 13. Reaction score. 1. My 4l60e recently started dropping out of overdrive randomly when warmed up. 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. It will go shift back to overdrive but it will keep randomly dropping out of overdrive.This is usually caused by the lockup circuit failing. There's a switch under the brake pedal that works like a brake light switch that tells this circuit when it's time to activate. Both sides will be hot when it's working properly. See also: 4L60E No Overdrive Diagnosis. The 2004 GMC Sierra was the 6th year of the GMT800 platform truck ...The 4L60E (and similar 4L65E) is a series of automatic transmissions from General Motors.Designed for longitudinal engine configurations, the series includes 4 forward gears and 1 reverse gear. The 4L60E is the electronically commanded evolution of the Turbo-Hydramatic 700R4, originally produced in 1982.. The 4L60E and 4L65E are built at …4l60e No Forward Gears, Only Reverse. Hey all, I have my 2000 Silverado 1500 4.8 4x4 that is giving me some issues. My transmission blew while on a trip to PA, so I went and got it with a trailer. Long story short, old transmission is shot, new transmission that was a fresh build, will not engage any forward gears. Reverse works perfectly.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.. 4L60E: 2-4 Servo Cover Stuck In Case. A quick Google search C. cool78259. 5 posts · Joined 2010. #11 · May 3 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. Christophe Thompson. SOURCE: 2003 chevy silverado will not shift Compatible with most popular GM transmissions, including the 4L60E, 4L65E, 4L80E and 4L85E, and the TCI ® 6x Six-Speed Transmission. The EZ-TCU™ allows for maximum electronic control over shift points, shift firmness and shift speed. Self diagnostics allow users of every skill level to fully utilize the EZ-TCU™. In this video, you will learn 4 symptoms o...
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