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
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Check and test the crankshaft position sesor-
Nov 18, 2010 at 4:03 AM
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JDL
  • CAR REPAIR CONTRIBUTOR
  • 16,098 POSTS
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