the engine surges high then low while in park

Asked by Jan 15, 2012 at 01:01 AM about the 1990 Mercedes-Benz 190-Class E 2.6 Sedan

Question type: Maintenance & Repair

2 Answers

bad throttle position sensor,vac leak,bad idle sensor.

3 of 3 people found this helpful.
1,665

Sounds like the idle control valve.

1 of 1 people found this helpful.

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