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1992 Suburban service engine soon light

Tiny
BRSL03
  • MEMBER
  • 1992 CHEVROLET SUBURBAN
  • V8
  • 2WD
  • AUTOMATIC
  • 136,000 MILES
1992 suburban with a 5.7L with 10k miles on new engine, when the engine is cold the engine starts and runs fine, but after an hour or so of driving, then shut the engine off. When restart the engine thats when the service engine soon light comes on and runs rough. The mechanic replaced some module and also the computer but it continues to happen. When its cold runs fine until its driven for a while.
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Thursday, August 18th, 2011 AT 6:48 PM

3 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
When light comes on need to check for trouble codes
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Thursday, August 18th, 2011 AT 6:52 PM
Tiny
BRSL03
  • MEMBER
  • 2 POSTS
The mechanic has checked the codes, but since its pre-1996 vehicle the codes only give general indication.
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Friday, August 19th, 2011 AT 1:32 PM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
They mean something to me what are they?
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Friday, August 19th, 2011 AT 9:06 PM

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