I put a rebuilt 4l60e in my 97 1500 chevy ext. In dec. In march , after a peel out , I have no overdrive, truck starts out in All gears but od cold. Once warm, goes to limp mode . Replaced a/b/3-2 solenoids . Filter and fluid .!!!! I reset the computer , runs fine for a few minutes, then back to limp mode, Turn off, turn back on , fine a few min. Then back to limp mode ????? Ughjjjjjjhhhh. Any help would be appreciated Thanks E

SOURCE: 95 GMC Jimmy 4L60E no 2nd or OD 4L60E

You might want to try this if its got a kick down cable unhook it from throutle body and pull it out as far as you can and let it snap back, do this a few of times, sometimes a valve gets hung up inside valve body of trans. and won't let it shift. If that don't help you may have to pull pan to dislodge it if thats the problem. chk. the plug on trans. (Its a 4 wire white plug) with test light with key on to see if there is power down there one will be hot, thats for overdrive, now on top of intake in front throutle body there is a sending unit that looks like a temp. sending unit with a 2 wire plug on it that sends a signial down to that plug when engine gets to temp. to let it shift to overdrive. Maybe this will help, or give you some ideas.

Harvey N Tawatao

• 3854 Answers
• Posted on May 26, 2009

SOURCE: 4L60E Shifts fine in 1st, 2nd, & 3rd but will not shift into OD

The EMC detected and problem so it's in limp mode, As long as it's in limp mode the 4th and OD will not activate. Take care not to burn up the transmission by running it hard while your in the limp mode.
Your going to have to get the truck scanned to clear any codes and why there are DTC codes. Auto Zone scan for free and most auto shops charge $10.00 to $20.00 to scan sine they want the business.
If you want to clear the codes your self you can put the ignition to the run position and pull the ECM (Batt) fuse out for 20 sec and place it back in then start the truck. It may stall but let it, just start it again and this would have cleared all the DTC code history.
The transmission should be running fine unless there is a problem and the service engine light will be on again and you'll be in limp mode still with an updated DTC in the ECM.
Good luck and hope this helps.

SOURCE: 1997 Chevy 1500 P/U 4x4 small V8. Transmission shifting issue.

you may be confusing the torque converter clutch engagement with o.d. this trans has a problem with the T.C.C. regulator valve wearing out the valve body bore. this will cause the converter clutch to engage only sometimes or not at all. this will set a P1870 code in the control module. when this code is stored in the controller, ( check engine light may or may not be on), it increases the pressure in the transmission causing the 1-2 shift to be harsh. ask a local tranny shop to scan the vehicle ( most will do this for free) if this is the problem they can either fix your valve body (sonnax parts) or replace it with an upgraded valve body. hope this helps

SOURCE: 1995 Chevy S10. The transmission (4L60E) has been

Imput drum is built incorrectly or bad imput drum. trans assembled correctly, put on trans x and if trans does not operate correctly I will ship you one for $1000 www.TransmissionGarage.com