1989 Cadillac Deville BADLY BACKFIRES

1989 CADILLAC DEVILLE
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NARCISO BALTIER JR
  • MEMBER
  • 1 POST
Electrical problem
1989 Cadillac Deville V8 Front Wheel Drive Automatic

MY CADILLAC BACKFIRE BADLY,IVE BLOWN TWO MUFFLERS I CHANGED DISTRIBUTER CAPS,PUT IN NEW CATALITIC I OUT IN A LOT OF MONEY AND IT STILL BACK FIRES IT RUNS REAL ROUGH SOME GOT IT TO PASS EMMISIONS CAN SOME PLEASE HELP ME THX.
Jan 31, 2010 at 8:37 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
You need to verify the firing order and also the valve and igniiton timing
Jan 31, 2010 at 8:50 AM
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