My 1990 caprice will start but 4 of my spark plugs are not gettting fire, whats wrong?
Feb 4, 2011 at 6:08 PM
Fire to spark plugs
BYRONCHEVYMAN
- MEMBER
- 2 POSTS
How long since tune-up. plugs--plug wires--cap and rotor. Any applicable mil codes? Did you visually check for spark at the plugs?
Feb 5, 2011 at 8:28 AM
I just gave it a tune up a few days ago..And yes I visually checked by pulling them out 1 by 1 and 4 of them didnt change the motor and wasn't gettin a spark
Feb 7, 2011 at 12:47 PM
Use a test lite on negative side of coil, engine cranking, there should be a pulse? If no pulse, suspect the ignition module or pick-up coil. There should be primary voltage at the coil with key on.
Feb 7, 2011 at 1:15 PM
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