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4L80-E transmission won't shift

Home > Discussion Forum > Mechanic's Corner - Transmissions

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4L80-E transmission won't shift Ken 9-28-07  
I have a 94 Chevy G30 bus that won't shift out of 1st gear. I want to change the shift solenoid but I need an idea where they are located on the trans.
Re: 4L80-E transmission won't shift hugo de leon 11-26-07  
My 4l80e trans wont shift into overdrive
Re: 4L80-E transmission won't shift Michelle 12-9-07  
I have a 4L80E transmission and it will not shift automatically from 2nd to 1st. I am tired of having to manually shift. Please help?????
Re: 4L80-E transmission won't shift F'd 3/4 ton burb 12-14-07  
I have a 1995 k2500 suburban and it will start out in 1st and slide in to 2nd, 3rd and 4th do not work along with reverse. some times if i manually shift from 1st to 2nd and let of at time of shift it feels firm but slowly looses holding power.. any help?
Re: 4L80-E transmission won't shift BUBBA THE BUS TECH 10-3-07  
The code is critical. What code is it? It will tell us whether it has an electrical or solinoid problem or even a sensor.
Wiring diagram for 4L60E transmission Jamie Lipsett 3-12-08  
Wires got torn off going to transmission. I have to rewire transmission from controller, If you have any wiring diagrams for transmission could you please email them or let me know please.
Re: 4L80-E transmission shifts out of overdrive mike moran 9-29-07  
I reset code and will run in overdrive for awhile then will shift out I have 2000 express 3500 deisel 60.l any help thanxs mike
Re: 4L80-E transmission no 1st or revs. Larry 7-8-14  
Coming up hill with trailer an trans. downshifted an quit moving,stoped an an unhooked trailer an finaly got moving in 2nd an upshifed ok to 3rd an up. I got to station an no Revs..Once moveing upshifs ok,no 1st or revs.
Re: 4L80-E transmission won't shift wrench 9-29-07  
On that one, if you're not handy mechanic & have the proper library you going to trow parts in it & may be never solve the problem.
FWIW wrench
Re: 4L80-E transmission won't shift Herb 9-29-07  
All the solenoids are in the pan. To replace them all is about $90. You're probably in 2nd, it will go into limp mode if a code is stored.
Re: 4L80-E transmission won't shift BUBBA THE BUS TECH 9-29-07  
This a no big deal repair, its just messy oily and a pain in the neck from laying on the ground. Drop the pan, you will need to cut and splice wiring in the pan on the valve body. re rout the wires and length them the same way as stock (important). Make sure that the o rings and all the plastic pieces come out of the bores. To get replacment parts, GM can provide. In my area Larry's transmision supply will sell to anyone and is a magor supplier to rebuilders. Much much cheaper. And as above if there is a problem with these it should show as a code in the computer
Re: 4L80-E transmission won't shift kerry 2-2-09  
I have 2001 GMS Sierra with a 4l80e that won't shift at all (it's stuck in limp mode...2nd gear) and has no error codes showing up on my Actron 9145 scanner. I had found the CPC connector on the side of the transmission disconnected and reconnected it. Prior to that the instrument cluster worked fine but when I reconnected it the cluster only works if I depress the odometer reset button. Any ideas?
Re: 4L80-E transmission won't shift ramrod 12-18-07  
I have a 1994 chev 3500 with a 454 in it. It has a 4L80E trans that periodiclly will not shift into 3 or over drive. I have replaced both speed sensors and the TPS with a short period of success. Any help welcome
Re: 4L80-E transmission comes out of od burke 2-11-09  
I HAVE THE 4L80E IN A 2000 2500 CHEVY. MINE WILL GO ABOUT 10 OR 15 MILES DOWN THE ROAD AND KICK IT SELF OUT OF OVERDRIVE. THEN WILL STILL DRIVING DOWN THE ROAD ILL SHIFT TO NEUTRAL CUT THE TRUCK OFF WAIT ABOUT 5 TO 6 SECONDS CRANK IT BACK UP AND IT DOES FINE FOR ANOTHER 10 TO 15 MILES. ANYBODY GOT ANY SUGGESTIONS ????
93 tahoe ran perfect now each gear is neutral Daniel fox 2-6-11  
93 tahoe ran fine then a friend messing with the "case" & "t c" fuses. Now stays in park but each gear behaves as neutral. When putting back into park terrible grinding noise. Also behi nd buttons for 4WD the circuit board NOW has a blown indicator light.
What fuses do I replace,
How do I fix blown indicator light, or do I even have too?

Please help
Thanks
Dan Fox
Re: 4L80-E transmission won't shift ken 6-27-11  
I am putting a 1996 4l80-e trans. in my 1992 3500 dully truck. will it work electtricly?
Re: 4L80-E transmission won't shift jimmyphillips 4-25-13  
Wont shift out of first gear
Re: 4L80-E transmission won't shift jaydee803 3-5-10  
I have a 99 chevy tahoe 2wd. Just got it out of the shop(had the motor rebuilt), now my transmission will shift into 3rd but nothing happens just the RPM will rise(same for overdrive) I changed both shift solenoids, but same problem. Any suggestions?
Re: 4L80-E transmission won't shift Paul Paramore 1-26-11  
Same problem
Re: 4L80-E transmission won't shift Tom 10-5-09  
I have a 99 Suburban that will not shift into Reverse, all other gears work fine. does any one have any troubleshoting tips?

thanks.

tom.
Re: 4L80-E transmission won't shift anacleto balderas 4-30-09  
I heve the same problem 1995 chevy 4wd 6.5 it woulnd go faster than 20 mph,if anybody has an idea.i will appreciate.thanks it
Re: 4L80-E transmission won't shift shawn w. 5-5-09  
I have a 1992 van with a 350 engine and a 4L80E tramsmission. My van will only reach 2nd gear without going into the higher. Overdrive and drive work until about 35 mph than going from 2nd to third there is no shift change, the engine just revs up, no matter how much gas i apply it still wont catch into 3rd gear. 1st and 2nd low gears work also reverse, but im only allowed to go up to 50mph in those gears. Help if you can. Much thanks.
Re: 4L80-E transmission won't shift chris 8-2-09  
Trans wont shift out of 2nd 2001 suburan 4x4 just put this trans in
Re: 4L80-E transmission won't shift don 4-12-09  
I have a 1996 chev 2500 4l80e i just put a new tranny in it does any buddy no how to set up the controller on the side of the tranny it will not shift
Re: 4L80-E transmission won't shift Carlos J. Moran Sr 3-23-13  
4L80E won't shift into third or overdrive after warm up also after warm up shifts hard into second. ran diagnostic found no codes
Re: 4L80-E transmission won't shift Bill Johnston 5-11-09  
I have a 4L80E that throws a trans warning light before start up. Once started it is in the limp home mode. What codes would cause this, and what home use scanner can I buy to read this?
Re: 4L80-E transmission won't shift ken 1-27-08  
I HAVE A 93 DUALLY 4X4. EVERYTHING WORKS FINE, EXCEPT WON'T SHIFT INTO OVER DRIVE, RECIENTLY WOULDN'T SHIFT PAST SECOND, FUSE NOT MAKEING CONNECTION (MARKED TRANS) WAS FOUND TO BE THE PROBLEM. ANY IDEAS ON THIS ONE?
Re: 4L80-E transmission won't shift bob goetzke g 3-13-12  
I have a 1995 GMC 3500 3/4 ton with automatic. the transmission won't shift out of first gear. went up to 4000 rpms. Speedometer also doesn't work, what could be the problem
Re: 4L80-E transmission won't shift will harrison 6-14-14  
4l80e transmission also wont shift past 1st
Re: 4L80-E transmission won't shift Rob 11-21-10  
Start up and shifts to 1st or rev and goes a ways then quits moving. shut car off and wait 5 min. and it does the same thing. Won't go to 2nd 3rd or 4th. Fluid ok and pump is working
Re: 4L80-E transmission won't shift josh 7-18-09  
Anyone know the reason why a 4l80e won't downshift from second to first when stopping adn trying to go again?
Re: 4L80-E transmission won't shift Don Manifold 8-17-08  
Ken I have '91 3500 w/454/4l80e with same problem. Shops unable to resolve, trans fuse problem seems possible. Fuse is fine, can you elaberate on what fixed your shift prob? Stressed!!
Re: wiring diagram for 4L60E transmission Jason 7-22-09  
I would like to have the wiring diagram for 4L60e transmission as well. I have a 1998 Chevy Tahoe 5.7 4WD. Transmission code M30.
Re: wiring diagram for 4L60E transmission david 5-28-09  
Hi i really need a diagram of the trans solenoid(s) location in a 98 chv 2.2l..thankyou
Re: wiring diagram for 4L60E transmission bobby 8-24-09  
Tranny is in limp mode after i hit a bump what could be the cause
Re: wiring diagram for 4L60E transmission juan 6-10-09  
Please, send mi a wiring diagram for 4l60e. tks.
Re: wiring diagram for 4L60E transmission mike pike 8-10-10  
Trying to find out the wiring for the speed sensor
Re: wiring diagram for 4L60E transmission watson jones 9-7-09  
95 blazer 4l60e works when cool and starts. works like a charm all gears then about 3-4 miles lose 4th goes to 3rd as long as the selecter is not moved shifts all 3 gears if selecter is moved to other selection it starts in 2nd unless you put in low. reverse still works. Fluid is pretty not burn so need wiring diagram
Re: wiring diagram for 4L60E transmission jeffery anderson 12-18-09  
I need a diagram to show where the wires off my truck plug into the trans
Re: wiring diagram for 4L60E transmission Derek Stewart 8-24-13  
I need too no where all the wires are place at in the plug or a pic of it plzz an thanks
Re: 4L80-E transmission comes out of od steve cseley 8-12-09  
Need help to fix trany
Re: wiring diagram for 4L60E transmission Wayne 7-16-09  
What is the black plastic box called that the shifter linkage and two electrical plugs located on the passenger side of the tranny? what is the name of the unit?
Re: wiring diagram for 4L60E transmission kees 7-14-12  
Need wiring diagram for trans to modules
Re: wiring diagram for 4L60E transmission smallwood 5-15-10  
I need a wireing diagram for a 4l60e in my 99 silverado. i lost my gear indicater and truck will not go into gear after replceing tanny. front pump is pumping fluid but no go when but in gear and tranny worked when pulled outa other truck. any ideas on this problem would help to
Re: wiring diagram for 4L60E transmission ramses 1-18-10  
Need the diagram 4l60e
Re: wiring diagram for 4L60E transmission Paul 8-20-11  
Rebuilt 4l60e has no 1st or 4th gear. Always starts in 2nd gear. No check engine light. Replaced 1-2 shift soleniod and problem still continues.
Re: wiring diagram for 4L60E transmission manuel 3-4-10  
Please send a wiring diagram for 4l60-E
Re: wiring diagram for 4L60E transmission Grifford 12-24-12  
Will a 4l60e work if it had a 4160 transmission in the vehicle.1994 chevy s10 but trans came out from a 1997 s10 blazer
Re: 4L80-E transmission comes out of od Randy 9-7-10  
Have a 1992 GMC 3500 with 4L80E will not shift into od. please help!!!!
Re: 4L80-E transmission Randy 9-7-10  
My 4L80E (17 bolt pan) will not go to overdrive. Help please!!!!
Re: wiring diagram for 4L60E transmission fred wagner 3-13-10  
I put a 454 out of a 1993 chev p/u ext.cab 2500 in a 1989 chev p/u 1500 needed wiring harness from the 93 so my problem is what colour wires from the 93 trany wires goes to my 89 wires i have 5 wires going to my trany 3 in one plug 2 in other tan/blk purple blue in one plug and yellow and a purple/white in other i need to know what colour wires from the 93 wiring harness go to those colours thanks
Re: 4L80-E transmission won't shift Phil 8-20-12  
Hi guy's I have 1992 p-30 motorhome with a 454 GM and 4l8o trany the problem i have when it get's warm and i go over some bumps,the coach feel's like it's comming out of gears to neutral I let go of the gas and it comme back into gear had the trany change to a new rebuilt one does the same thing with the new one????? check the engine ground didn't change anything any suggestions ????
Re: wiring diagram for 4L60E transmission Brendan Marklowitz 2-10-11  
Hey can you send a picture of the wiring diagram for the 13 or 12 plug for the 4l60e transmission i need to know witch ones are for the TCC lockup i am puting a 4l60 into my 93 and i have talked to some people bout doing this swap and i just need to know whitch wires are whitch, so if you could do that it would be really helpfull thanks
Re: 4L80-E transmission joe 9-28-10  
I got a 99 suburban that wont shift out of first gear tranny was rebuilt all ne clutchs seals and sensors what do i need to do to fix it so it will shift
Re: wiring diagram for 4L60E transmission Kenneth Carrington 5-24-11  
Look for wiring diagram for 12 (purple plug) and 13 (green plug)prong plug on the passenger side of a 4l60e trans. what is the difference in the both of them?
Re: wiring diagram for 4L60E transmission Shane 8-6-11  
Can you please send me a copy of those wiring diagrams
Re: 4L80-E transmission won't shift tommy 8-9-13  
Have a 1996 3500 crew cab kicks out of over drive any body know about these or what causes it all other gears are fine
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