"I have a 91 Silverado 5.7 EFI that wouldn't start , cranked but wasn't squirting gas into TB. This was intermittent at first. Is there any part of the fuel system that would keep the injectors from firing intermittently. I have 15 psi on the fuel line and I just rebuilt the press regulator. If I keep trying it will eventually start but I tested it and it's definitely not squirting fuel when it won't start. Now it's more frequent and sometimes dies when put into gear( not a trans issue I'm pretty sure). I've replaced the coolant sensor and the ign module , also as I said rebuilt the press regulator. Can't figure why when it dies , it won't start back up because no fuel squirting from injectors . Then it will . Any help appreciated ! I am a mech and I'm trying to not throw parts at it!"

Asked by Mar 21, 2017 at 12:25 PM about the Chevrolet Silverado 1500

Question type: Maintenance & Repair

1 Answer


15 lbs fuel pressure might be too much. It should be 9 to 13, so not that far off. I know when an injector gets too much fuel pressure it will not work. Another thing to check is if your are getting an injection pulse to the connectors. Finally, you may have plugged or faulty injectors.

Your Answer

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
  • #2
  • #3
View All

Related Models For Sale

Used GMC Sierra 1500
1,004 Great Deals out of 66,526 listings starting at $2,495
Used Ford F-150
2,512 Great Deals out of 193,861 listings starting at $799
Used Chevrolet Silverado 2500HD
315 Great Deals out of 29,873 listings starting at $3,500
Used Dodge Ram 1500
371 Great Deals out of 10,765 listings starting at $1,500
Used Toyota Tundra
478 Great Deals out of 33,133 listings starting at $2,000
Used Toyota Tacoma
586 Great Deals out of 43,856 listings starting at $2,200
Used Ram 1500
974 Great Deals out of 109,688 listings starting at $5,500
Used Chevrolet Tahoe
703 Great Deals out of 41,339 listings starting at $1,995
Used Chevrolet Colorado
268 Great Deals out of 33,734 listings starting at $1,900
Used Ford F-250 Super Duty
312 Great Deals out of 45,081 listings starting at $1,700
Used Chevrolet Camaro
407 Great Deals out of 30,592 listings starting at $2,495
Used Chevrolet Silverado 1500HD
8 Great Deals out of 260 listings starting at $2,195
Used Chevrolet Silverado 2500
5 Great Deals out of 221 listings starting at $2,888
Used Nissan Titan
212 Great Deals out of 20,495 listings starting at $3,695
Used GMC Sierra 2500HD
103 Great Deals out of 13,801 listings starting at $2,999

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.