Pontiac Bonneville Problem Report

Pontiac Bonneville Misfire and/or Check Engine Light Due To Failed Ignition Coil

(6 reports)

An ignition coil may fail causing one of the cylinders to misfire. Each of the two banks of cylinders has its own coil assembly. If one ignition coil fails the coil assembly for the corresponding cylinder bank must be replaced.

Hard to start about half of the time, wont get up to speed no where near as fast as it used to, starts shaking bad going down the road, will take probably 2 minutes to get up to 60mph -
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