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My 2004 monte supercharged SS 3.8 6cyl is cutting out and jerking when i accelerate but doesnt do it when i rev the engine in park. What are the possible problems and where should i start looking ?

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I would look at you secondary ignition components. Spark plugs, plug wires, coil packs, ignition module. you should see if you have codes for misfire. if not drive with a scanner on and watch the misfire counter.

spark will always look for the easiest way back to ground. under a load it may be easier to jump outside the system instead of jumping across the spark plug gap.

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