Mechanics

CAR BACKFIRES OFF AND ON AND RUNS REAL ROUGH AND LOSE'S POWER GOING UP HILLS MOSTLY OR STARTING OFF FROM A STOP SIGN.

1994 Buick Regal • 18,000 miles

Car backfires off and on and runs real rough and lose's power going up hills mostly or starting off from a stop sign. What could be the problem? Maybe the crank sensor?
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Bart 1
May 29, 2012.



Scan for codes and check fuel pressure first.41-47psi is fuel pressure.

Hmac300
May 29, 2012.


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