fuel delivery issues

1994 GMC C3500
249,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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TIMOTHY BOWER
  • MEMBER
  • 5 POSTS
Replaced fuel pump in tank. would operate like it should, at first install, an hour or so goes by, not working at all. got fuel to TBI, but no fuel past the end of fuel rail at TBI. Any help would be highly appreciated. Thank you
Apr 27, 2019 at 3:05 AM
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SCGRANTURISMO
  • ✓Experienced Mechanic
  • 4,897 POSTS
Hello,

I have included the information that you requested in the diagrams down below. Please go through the fuel system description and the factory diagnostic troubleshooting guide and get back to us with what you are able to find out, please.

Thanks,
Alex
2CarPros
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Apr 27, 2019 at 5:21 AM
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