1990 bonneville no spark - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-13-2009, 12:41 AM   #1
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Default 1990 bonneville no spark

my bonny will stall when u come to a stop light and idles rough i pulled wires and 2 middle ones were dead so i replased coil pack with a new 1 same trouble no spark on same 2 so i asked a friend to look at it he replased the plate underneath it and now have intermediate spark on those 2 can anybody please shed some light on this trouble as i have sold the car and am hoping to get her purring like a kitten again thanks in advance
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Old 10-13-2009, 07:57 AM   #2
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Test the coils that have no spark. If they test good then the problem is the connections to the coil, or the ICM. You can find tests for the coil in the tech info area under tests.
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