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2002 Pontiac Bonneville SE 4dr Sedan

2002 Pontiac Bonneville
Trim Info:
Front Wheel Drive, 4 Door Sedan, Large
20 mpg city / 29 mpg hwy
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August 21, 2011, 8:12 am

AutomotiveForums M
 

Question: Why does my car turn off while driving?

Car turns off while driving usually when idled low and slowing to turn or stop. Usually restarts. A couple of times it had to sit before restarting. Doesn't sputter or stall, just shuts off. Radio, air, lights and stuff stays on. Once the RPMs started jumping around and car shuttered like it wanted to quit, but kept running. Got new battery and had crank position sensor replaced by mechanic. Sometimes it smells like hot wires.


August 23, 2011, 8:32 pm

Tyler O
Expert Mechanic

Could be almost anything here. Check first the state of tune any that all your engine maintenance is up to date.

Check for any vacuum and air leaks.

Check all adjustments and check air flow meter, fuel pressure etc...


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