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Runs rough

Tiny
ADAM HARTWICK
  • MEMBER
  • 1991 CHEVROLET S-10
  • 23,300 MILES
When first started it runs very rough and sounds like it is going to cut out. When I hit the gas pedal it makes it worse. Also it smells like fuel. The engine size is 4.3L
Wednesday, November 30th, 2011 AT 2:52 PM

6 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
How long since a tune-up? Any applicable trouble codes? You should be able to check mil codes, yourself. Check for external gas leak. Check vacuum line to fuel pressure regulator. Check evap system.
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Wednesday, November 30th, 2011 AT 5:47 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
What is the 8th digit of the VIN#?
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Wednesday, November 30th, 2011 AT 6:11 PM
Tiny
ADAM HARTWICK
  • MEMBER
  • 11 POSTS
I think it needs a fuel filter do not see any gas leaks
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Wednesday, November 30th, 2011 AT 6:22 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
If you suspect a fuel issue, use a gage and check fuel pressure.
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Wednesday, November 30th, 2011 AT 7:02 PM
Tiny
ADAM HARTWICK
  • MEMBER
  • 11 POSTS
I will try that after would a exhaust manifold cause that problem
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Wednesday, November 30th, 2011 AT 7:10 PM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Not if it runs rough. I don't think so.
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Wednesday, November 30th, 2011 AT 7:34 PM

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