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97 Suburban fuel issue


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4speed
New User

Jul 22, 2013, 10:07 AM

Post #1 of 9 (1310 views)
  post locked   97 Suburban fuel issue  

Hello all,
I have a 1997 Chevrolet Suburban with the 5.7 Vortec. It is a 2wd truck with 80,000 miles. Yesterday, the engine died while driving and I had to get it towed home because it wouldn't start. I thought it was the fuel pump because of the way it shut down and wouldn't restart. Once at home, I could hear the pump come on in the tank when I turned the ignition. I confirmed that fuel is getting to the intake by checking the Schrader valve in the fuel line. I then shot some starting fluid in the throttle body and the truck cranked and ran smoothly until it was all burned off. I am a "shade-tree hobbyist" at best when it comes to auto repair, and the addition of EFI only adds to my confusion here. Is this a simple fix? What should my next step be?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 22, 2013, 11:52 AM

Post #2 of 9 (1267 views)
  post locked   Re: 97 Suburban fuel issue  

You need to know what the exact fuel pressure is.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



4speed
New User

Jul 22, 2013, 1:57 PM

Post #3 of 9 (1257 views)
  post locked   Re: 97 Suburban fuel issue  

Thanks, Hammer Time.
What is the required fuel pressure? I have been unable to find it online. I'm gonna pick up a gauge on the way home and check it.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 22, 2013, 2:27 PM

Post #4 of 9 (1256 views)
  post locked   Re: 97 Suburban fuel issue  

This spec is critical. It will not run under 55PSI

Central SFI 60-66 psi
SFI 56-62 psi



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



4speed
New User

Jul 23, 2013, 11:59 AM

Post #5 of 9 (1229 views)
  post locked   Re: 97 Suburban fuel issue  

Well, I checked it and it makes a wopping 15 psi.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 23, 2013, 2:50 PM

Post #6 of 9 (1222 views)
  post locked   Re: 97 Suburban fuel issue  

BINGO!



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jul 23, 2013, 3:35 PM

Post #7 of 9 (1219 views)
  post locked   Re: 97 Suburban fuel issue  

There's enough pressure there for a lawn mower.





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4speed
New User

Jul 25, 2013, 8:33 AM

Post #8 of 9 (1186 views)
  post locked   Re: 97 Suburban fuel issue  

Thank you for your guidance, Hammer Time. I installed a new fuel pump last night and I am mobile again.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jul 25, 2013, 12:17 PM

Post #9 of 9 (1178 views)
  post locked   Re: 97 Suburban fuel issue  

Glad to hear it.

Closing this question now to keep the spammers out. Can be reopened upon request to any Mod.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.







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