1995 GMC Truck only when it rains

1995 GMC TRUCK
172,000 MILES • V8 • 4WD • AUTOMATIC
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KRISISKR8ZY
  • MEMBER
  • 1 POST
i have a 95 gmc k1500 4x4 truck. my problem is when it rains something gets wet and the engine will start to idle up and down. it does it until it just shuts off. i have replaced the distributor cap, the rotor button, the coil, and the coil wire. so if anyone can tell me anything else that i haven't tried it would much appreciated.
May 4, 2010 at 12:04 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
check your crank sensor ( in the block) and the cam sensor ( in the distributor) also run a scan on the engine.
May 26, 2010 at 3:41 PM
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