Pontiac Q&A

Ask Your Question

2004 Pontiac Grand Prix GTP Question: hard miss

 

Question

chevr, Roxie, MS, August 16, 2012, 17:21
 Rookie

when cranking my car it has a really bad miss. the code reads random/multiple cylinder misfire. I just replaced the plugs and wires. I also tested the coil packs to check the firing and all produced a big blue spark like they should. what is causing this to occur?

1 Answer
Flag This
  • Answer #1

    Chevy Power August 17, 2012, 06:56
     Journeyman

    Did this start after you installed the plugs and wires? If so there may be a bad spark plug or you may have crossed the wires. Recheck your work.

    Reply
    Flag This