Transmission troubles have searched and still have ???
First off I have done a ton of searching and am still a bit confused here is the situation:
I have a new to me 95 ZJ 4.0 l automatic transmission 42re and 320,000 miles. when driving from a dead stop (stop light or sign) I move the lever to 1st gear all is fine 2nd gear is fine to but if I start from a dead stop in Drive/overdrive it does not start in first gear it seems to be in 2nd or maybe 3rd the Jeep has no power what so ever until i get up to about 15 to 20 mph. I know 1st works fine if the lever is in 1st. the overdrive button/switch light is always on I tried the trick of turning the key on and off but the overdrive switch light never flashed.
In my searching I have found that this may be the accumulator spring? or possibly the bands need adjustment? or maybe I have a bad solenoid? or possibly a bad TCM?
anyone have any ideas? I do not want to just start throwing parts at this so any way to narrow this down will be helpfull!
lastly I know this car has obd1 if i get the codes pulled will it pull the codes from the TCM are the code even stored in the TCM? and where do I plug the code reader in.
thanks for all the help, I would really like to fix this as inexpensively as possible and know I can do the work if I just knew which work to do.
Black Jeep Society #276
89 XJ Cherokee 4x4
95 ZJ Grand Cherokee 2x4