misfire

1996 PONTIAC FIREBIRD
6 CYL • AUTOMATIC
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BEHNKE88
  • MEMBER
  • 8 POSTS
I Have A 96 Pontiac Firebird And When I Start It Up It Shakes And The Service Engine Light Blinks I Know Its A Misfire I Was Told It Was Either The Coil Packs Or The Spark Plugs And Wires I Changed One Of The Ignition Coils Made A Tiny Difference But Not Good Enough So I Tested The Resistance In The Coil Packs One Read 8.7 And Another The Same Then The Other One Read 5.3 Does That Mean Its Bad?
Aug 3, 2011 at 9:13 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Have the computer scanned for code/s and post them if any present
Aug 3, 2011 at 9:16 PM
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ASEMASTER6371
  • CAR REPAIR CONTRIBUTOR
  • 52,796 POSTS
I would replace the plugs, wires and the coils. if 1 is bad, the others will be close behind.

Roy
Aug 3, 2011 at 9:23 PM
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.