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1978 Chevy Cheyenne Engine turns off

Tiny
AUGUSTUSMAGNUS
  • MEMBER
  • 1978 CHEVROLET CHEYENNE
Engine Performance problem
1978 Chevy Cheyenne V8 Four Wheel Drive Automatic

Small block 400 that while running will just turn off as if a switch has been hit and then does not want to re-start, a few hours later or the next day it will start and run well but within a few minutes will just turn off again and not re-start. This has a mechanical fuel pump (not electric) and we changed out the coil, cap and rotor.
Please help.
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Monday, August 16th, 2010 AT 11:19 AM

2 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check to see if you are getting any power tothe coil as you may behaving an issue with the ignitiion switch. Especially since you changed the distributor parts. Also if this has a vacuum advance check the resistance to thepick p coil as the wires n those would fail and cause your condition. The Distributor has to be pulled apart to fix that. Alsoif you go to the tune up site on hhere it will show you step by step on how to check your system for faulty parts.
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Thursday, August 19th, 2010 AT 1:37 PM
Tiny
AUGUSTUSMAGNUS
  • MEMBER
  • 2 POSTS
Thanks for the response, I found the problem last night, it was the ignition module. I should have noticed it the first time in, thanks again.
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Friday, August 20th, 2010 AT 1:49 PM

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