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RPM needle goes up and down when stopped, engine shakes, car dies

(2001 Lincoln Navigator)
in Provo, UT on July 13, 2010
2002 Lincoln Nav. 76,000 miles
The service engine light recently came on, but the car was running fine. I thought it waa a factory setting for when the car hit the 75,000 mile mark. A few weeks later, I was stopped at a stop light, and the RPM's needle repeatedly jumped up and down when I wasn't moving; the engine shook,as it idled between high and low. The power sounded different as I drove. At the next stop light, the car died. It restarted, and I barely made it the last block home; the car sounded like it would die any second. Any idea what this might be?
Displaying 1 answers & 0 comments
Popular Answer
on July 13, 2010
driving with the light on for weeks is not a good idea. the problem may be compounded by that. you need to go to a shop and get this looked at before major problems develop from minor problems.

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