Mechanics

JEEP CHEROKEE IGNITION SWITCH PROBLEM

1999 Jeep Cherokee

Shakes or Wobbles problem
1999 Jeep Cherokee 6 cyl Four Wheel Drive Automatic

Jerks actually. Doesn't happen in cold weather. RPM's not affected. Always on highway driving between 55 up. Just had a tune up, all filters, no other problems. Lots of highway miles, well taken care of. 200,000 miles. Sensor light comes on when it starts, then goes off. Usually takes an hour or so before it starts and seems to happen when high way speed is pretty constant, frequent changes in speed are helpful. No problems starting. Could it be exhausted transmission fluid?
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Susanchang
March 29, 2009.



You can try a self-diagnostic test. To activate self diagnostic program: With the ignition switch in the OFF position, depress the TRIP and RESET buttons.
While holding the TRIP and RESET button turn the ignition switch to the ON position.
Continue to hold the TRIP and RESET buttons until the word CODE appears in the odometer windows (about five seconds ) then release the buttons. If a problem exists, the system will display Diagnostic Trouble Codes (DTC's). If no problem exists, the code 999 (End Test) will momentarily appear.

Merlin2021
Mar 29, 2009.