2000 Pontiac Bonniville

2000 PONTIAC BONNEVILLE
274,000 MILES • 6 CYL • FWD • AUTOMATIC
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FALLON
  • MEMBER
  • 1 POST
my car is having random misfires. We replaced the spark plugs as well as the spark plug wires and coil pack. Now the car is running even worse. We also noticed that out of 6 of the spark plugs only 4 of them are sparking. What could be the problem?
Nov 18, 2010 at 3:58 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check and test the crankshaft position sesor-
Nov 18, 2010 at 4:03 AM
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JDL
  • ✓ASE Certified Mechanic
  • 16,098 POSTS
  • ASE Certified Mechanic
I didn't see engine litre size? I'd want to check circuits at the ignition module. If bypass ignition, the ignition module controls spark timing during cranking. I'll have to double check.
Nov 18, 2010 at 4:05 AM
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