1998 Jeep Cherokee Transmission slippage or delayed hard sh

RICHARD ORTH

MEMBER
1998 JEEP CHEROKEE
6 CYL
2WD
AUTOMATIC
130,000 MILES

The jeep feels like the transmission is not talking to the gas pedal. The motor seems to be running fine and the transmission does not leak or make any odd noises and I had a total replacement of the transmission fluid at 100000 miles. The motor seems to be running fine.
Symptoms:
1 The RPM gauge sometimes surges about 1 RMP while the gas pedal is constant and the car is driving at a constant speed. This does not happen all the time and mostly occurs when accelerating from a stop to 50 mph.
2 Jeep is sluggish to take off like the motor and transmission are not in sink with each other, although they both seem to be functioning fine.
3 Finally I took it for a 30 mile ride on the interstate (70 MPH) than when I exited off the ramp and came to a stop the trans mission did not want to go, It was in drive and when the gas pedal was pushed the motor revved up but only creeped forward. Than I manually shifted it into 1st gear and than second onto drive and it started working again and never repeated this again.

1 Reply

KHLOW2008

MECHANIC
41,815 POSTS

Hi richard orth,

Thank you for the donation.

Problem seems to be from the control system. You would need to get a diagnostic scan to retrieve for trouble codes. This would assist in diagnosing the problem

The followng would affect the trans shifting :
1. Throttle Position sensor.
2. Transmission Control Module (TCM)
3. Valve body. ( Not lightly as manual shifting works)
4. Valve nody solenoids, possible causes if they are not functioning correctly.
5. Brake switch.
6. Low fluid level or clogged filter.
7. Speed sensor.
8. Transmission range sensor.