I have a 95 S10 with a 4.3 vortecand a cpi fuel injection. I've replaced everything but the fuel lines and It won't start. The pump only primes it to 22psi. Any help?

Asked by Jul 09, 2016 at 06:18 PM about the 1995 Chevrolet S-10 LS Extended Cab RWD

Question type: Maintenance & Repair

I can start the truck when I pour gas into it. But only for a second.  It with
crank fine but won't start.  It only gains to 22psi when I turn on the switch.  
  Every thing tells me it should be 52 psi to 60 psi.  
I can't get the fuel pump to activate with the test wire under the hold it's
been down a month and I've spent $500 on it already any help would be
appreciated.

1 Answer

22,345

You need at least 50 psi to fire the injectors. It's supposed to be between 55 and 65psi. Either your pump is weak, the regulator on the back of the injector spider is leaking/bad or the lines inside the plenum are bad. 22psi will not run the truck

1 people found this helpful.

Your Answer:

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
    Reputation
    2,830
  • #2
    Trebor66
    Reputation
    1,130
  • #3
    John Saffrahn
    Reputation
    1,120
View All

Related Models For Sale

Used Ford Ranger
116 Great Deals out of 4,304 listings starting at $1,000
Used Toyota Tacoma
446 Great Deals out of 50,197 listings starting at $2,695
Used GMC Sonoma
284 listings starting at $2,900
Used Ford F-150
2,398 Great Deals out of 200,117 listings starting at $1,300
Used Chevrolet Blazer
735 listings starting at $900
Used Dodge Dakota
83 Great Deals out of 3,051 listings starting at $1,900
Used GMC Sierra 1500
816 Great Deals out of 60,745 listings starting at $1,495
Used Dodge Ram 1500
342 Great Deals out of 9,284 listings starting at $1,800
Used Chevrolet C/K 1500
711 listings starting at $1,758
Used Chevrolet Camaro
260 Great Deals out of 27,404 listings starting at $2,900

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.