How do you know if the throttle position scencer or iginion module or is it out of time?

Asked by Apr 25, 2015 at 11:37 AM about the 2002 Jeep Grand Cherokee Limited

Question type: Maintenance & Repair

It would shutter when giving gas ,it would run rough till warmed up then got worse now it
won't start at all now .

2 Answers

7,175

Have a scan done to check for sensor condition or component failure. When was the last time the fuel filter was changed? Clean out throttle body.

88,655

Do a computer scan first, fix the problems listed, then reset the ECM, after all that is done it should start and run, then drive it as you normally do for about 20 minutes, during this time the ECM is relearning the vehicle and your driving habits, that should clear up your problems.

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