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Engine running rough

Tiny
BARFOOT50
  • MEMBER
  • 1994 CHEVROLET BLAZER
  • 4.3L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
The IAC has been replaced and the engine still runs rough and has gas smell found bad intake hose and replaced it. Do not know if some rubber got into plenum. This is an S-10 Blazer
Tuesday, May 2nd, 2017 AT 7:08 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check for a blown gasket under TBI unit they like to do that. Just use choke cleaner and replace any soft vacuum hose like going to PCV and map sensor as they suck together and do not let MAP work right.
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Tuesday, May 2nd, 2017 AT 12:57 PM

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