91 bonneville shut off

1991 PONTIAC BONNEVILLE
172,000 MILES • 6 CYL • 2WD • AUTOMATIC
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PATRICK.WALKER16
  • MEMBER
  • 1 POST
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
Feb 7, 2011 at 11:38 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
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.
Feb 7, 2011 at 12:16 PM
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