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1991 Pontiac Grand Am Cutting Off!

Tiny
MUSLIM
  • MEMBER
  • 1991 PONTIAC GRAND AM
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 111,000 MILES
This is a great car. But while driving, it will cut off in the middle of traffic after about 20 minutes. After sitting for a while, it cranks back up as if nothing happened and does it all over again. I have changed the water pump, manifold gaskets, given it a complete tune up. I'm lost at this point. One thing I have not tried is some of the sensors. Can someone please help this single mother keep her, the stimulus package is gone and I need HELP, PLEASE?
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Friday, August 21st, 2009 AT 1:27 PM

1 Reply

Tiny
MYTHOLOGY2112
  • MEMBER
  • 4 POSTS
Mine is doing the exact same thing, what I have learned so far is this issue is related to an eletrical connection breaking when hot, then reconnecting when cooled. The prime suspects are the ignition module and crankshaft sensor, these are the most likely. Some shops can test this, but is likely they not find anything, because the problem only occurs when hot. Start by replacing the crankshaft sensor, it is far cheaper then the module.
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Saturday, August 29th, 2009 AT 12:13 AM

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