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2004 Pontiac Grand Prix GT1 4dr Sedan

2004 Pontiac Grand Prix
Trim Info:
Front Wheel Drive, 4 Door Sedan, Mid-Size
20 mpg city / 30 mpg hwy
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December 9, 2012, 4:31 pm

Roberta S

Question: what is a breaking down under load in the ignition system

just wondering what it is some one told my sister thats what is wrong with her car

December 15, 2012, 11:40 am

Ron W
Expert Mechanic

Usually the plugs, wires or the coils break down under load. when you accelerate up a hill, the ignition it pushed harder than normal driving. In those types of conditions, if the ignition isn't 100, the car will cut out or buck. at 72K miles, I would start with spark plugs (and plug wires if equipped) and go from there. A simple tune up may be all that is needed.

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