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1999 GMC Envoy Fuel Problem

Tiny
LBIZZLE
  • MEMBER
  • 1999 GMC ENVOY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 143,589 MILES
The truck runs good when it's just at idle, but when you step on the gas the truck want's to stall out. I did the oil change, and changed the fuel filter. I think it could be the fuel injectors but I'm not sure. What do you think.
Saturday, March 21st, 2009 AT 4:16 PM

1 Reply

Tiny
BRIAN 1
  • MECHANIC
  • 1,030 POSTS
Put a fuel pressure guage on it and see what it does when you step on the gas, fuel pressure might be ok at idle until you gas it and it might drop. Should be 60-66 psi running. Post back with any other questions.
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Saturday, March 21st, 2009 AT 7:11 PM

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