Hello folks,
New to the board and am looking for some tech help. I researched this issue on the boards already, but there are conflicting replies.
I have a '99 Isuzu Trooper auto. Coincidentally after having my transmission fluid exchanged at a local establishment, my transmission started shifting very harshly on the 2>3 shift, both up and down. It slams into gear so hard that the drivetrain resonates like a ringing bell. It only seems to do this after the car has sat for a day or so and is used in the morning.
Oddly, this problem will correct itself immediately if, upon realizing the problem, I pull over, shift the tranny into Park, and turn the ignition off. I wait 5-10 seconds, restart the vehicle, and everything shifts fine. I have not yet had trouble correcting the problem using this method.
In reading the board, it seems that some possibilities are the 2>3 shift solenoid and the TCM. I would appreciate some guesses on what the problem is and suggested repairs. Can the solenoid be replaced with the transmission still bolted in, or must it be removed? Can the solenoid(s) be tested in some manner without removal?
I would appreciate any theories. I have a pretty good base of mechanical knowledge, and would be performing any repairs myself short of a total trans rebuild. Thanks for your time.
Regards,
Tom
New to the board and am looking for some tech help. I researched this issue on the boards already, but there are conflicting replies.
I have a '99 Isuzu Trooper auto. Coincidentally after having my transmission fluid exchanged at a local establishment, my transmission started shifting very harshly on the 2>3 shift, both up and down. It slams into gear so hard that the drivetrain resonates like a ringing bell. It only seems to do this after the car has sat for a day or so and is used in the morning.
Oddly, this problem will correct itself immediately if, upon realizing the problem, I pull over, shift the tranny into Park, and turn the ignition off. I wait 5-10 seconds, restart the vehicle, and everything shifts fine. I have not yet had trouble correcting the problem using this method.
In reading the board, it seems that some possibilities are the 2>3 shift solenoid and the TCM. I would appreciate some guesses on what the problem is and suggested repairs. Can the solenoid be replaced with the transmission still bolted in, or must it be removed? Can the solenoid(s) be tested in some manner without removal?
I would appreciate any theories. I have a pretty good base of mechanical knowledge, and would be performing any repairs myself short of a total trans rebuild. Thanks for your time.
Regards,
Tom