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03 Suburban Z71 vortec fuel pump

Tiny
KD202
  • MEMBER
  • 2003 CHEVROLET SUBURBAN
Fuel pump went out, replaced it yesterday, but it's idling low and acting as if wanting to stall. Replaced with OEM AC Delco for flexfuel. Any suggestions? :Roll:
Sunday, July 29th, 2007 AT 2:11 PM

2 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Did you do the filter at the same time? Is your truck a flex fuel vehicle? Check the fuel pressure regulator on the side of the fuel rail. Remove the vacuum line and see if there is raw fuel in it, if so replace regulator
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Friday, August 10th, 2007 AT 5:59 PM
Tiny
KD202
  • MEMBER
  • 5 POSTS
Yes we did replace the fuel filter
Will check fuel pressure and vacuum line thanks :)
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Saturday, August 11th, 2007 AT 11:29 AM

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