Mechanics

91 SHUT OFF

1991 Pontiac Bonneville • 6 cylinder 2WD Automatic • 172,000 miles

I have a 91 bonneville and the car will cut off while driving and will not start back up for hours. Also it has a ratalling noise, that sounds like the harmonic balancer. What could cause these problems
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Patrick.walker16
February 7, 2011.




When the problem occurs, have a helper crank it, while you visually check for spark at the plugs. If you have spark everywhere, use a gage and check fuel pressure. Check for possible mil codes. Let us know what you find.

JDL
Feb 7, 2011.


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