1989 Chevy Silverado

1989 CHEVROLET SILVERADO
200,000 MILES • V8 • 4WD • AUTOMATIC
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AKRAMELL
  • MEMBER
  • 1 POST
my truck turns over but wont fire. i put a new coil in it an the distributor cap looks to be in good condition an the spark plugs are new but still dont spark. what else could stop it from firing
Jan 16, 2010 at 6:03 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Welcome to the forum. Is the coil in the dist. cap or separate from the distributor. Did you check the coil primary circuits? Pink wire is B+ goes hot when you turn on the key. White wire, where applicable, has a pulse, engine cranking. Are there any trouble-codes?

If the coil is separate from the cap, pull the coil wire from the dist. cap, hold close to engine ground, engine cranking, can you see a spark jump?
Jan 16, 2010 at 6:56 AM
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