What causes coil packs to keep going bad on my 1991 Chevrolet lumina

Asked by Jul 19, 2015 at 04:23 PM about the 1991 Chevrolet Lumina

Question type: Maintenance & Repair

2 Answers

118,415

Unstable voltage, high resistance in the plug wiring and or plugs, intermittent ignition circuit ground.

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66,505

Have you changed your spark plugs? Excessive spark plug gap puts higher than normal stress on the coil packs. Also some of the aftermarket cheap coils seem to have a very short life span.

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