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terryway
terryway 2/14/2013
2005 Pontiac Grand Prix GT 6Cyl3.8L - Preventive Maintenance
2005 Pontiac Grand Prix put plugs and wires new in now misfiring and chugging bad help and its a 3.8 please help:(
Took to advance auto they said its misfiring don't know why imagine that lol
1 Answer
  • Jimm
    Jimm 2/17/2013
    First step - double check the spark plug wires installation to make sure they are routed to the correct cylinder, and in the correct order. Next, make sure the spark plug gap is correctly set (adjusted) on each spark plug. Then, make sure the spark plug wire boot is firmly installed to the spark plug.
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