1991 Pontiac Bonneville

Tiny
SPACYTRACY
  • MEMBER
  • 1991 PONTIAC BONNEVILLE
  • 195,000 MILES
Will start when cold but after is warm wont start again til it cooled down. Have changed the ICM and Coil Pack.I don't know what else to so I.M ready to take it to the crusher. Oh I put a radiator and water pump on it first. Believing this was the problem. Has a new thermostat before this problem started. At my witt's end!
Sunday, October 13th, 2013 AT 6:22 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
When it doesn't start, have you checked for spark and fuel to the engine? Also, does it have more than one coil pack? Have you checked the ignition module? If it has more than one coil, have you checked t
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Sunday, October 13th, 2013 AT 7:24 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
Don't know why that happened, but anyway, did you check the digital ignition control unit (DIC)?
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Sunday, October 13th, 2013 AT 7:24 PM

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