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1994 GMC C1500 WONT'T START AFTER ENGINE IS STARTED ONCE AN

Tiny
B_RUEHLE
  • MEMBER
  • 1994 GMC C1500
Electrical problem
1994 GMC C1500 V8 Four Wheel Drive Automatic

ENGINE STARTS AND RUNS WELL WHEN FIRST, STARTED COLD. AFTER 5 TO 10 MINUTES STALLS AND THEN WILL NOT FIRE. IS GETTING FUEL Into throttle body.
Sunday, February 8th, 2009 AT 3:40 PM

3 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
AFTER 5 TO 10 MINUTES STALLS AND THEN WILL NOT FIRE

Check if its getting spark if okay. Do a fuel pressure test
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Sunday, February 8th, 2009 AT 4:07 PM
Tiny
B_RUEHLE
  • MEMBER
  • 2 POSTS
Lo again I shoud have given more info yes the truck has spark though it mighy have been week so replaced coil. New plugs, spark is there and fuel is working. I loosed the distributer to change advance. No differance. Us it possiby the converter is plugged there seemed to be smorking around the o2sensor in the manifold thanks
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Tuesday, February 10th, 2009 AT 10:37 PM
Tiny
RASMATAZ
  • MECHANIC
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Do a backpressure test on the exhaust system to rule out the catalytic converter
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Wednesday, February 11th, 2009 AT 9:41 PM

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