Runs rough back fires

Tiny
MEANMIKE58
  • MEMBER
  • 2000 PONTIAC GRAND AM
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 136,000 MILES
2000 grand am weak spark cylinder 1 & 3
Saturday, February 5th, 2011 AT 11:14 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The coils are paired for 1/4 and 2/3 so it's not likely a coil problem. These engines are notorious for bad coil housings. That white housing acts as a distributor cap and quite often cause misfires.
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Sunday, February 6th, 2011 AT 12:30 AM

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