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 2 Dr LS Extended Cab SB

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

20,635

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

Your Answer

Chevrolet S-10 Experts

  • #1
    Andrew Olsen
    Reputation
    2,650
  • #2
    John Saffrahn
    Reputation
    1,100
  • #3
    Trebor66
    Reputation
    1,070
View All

Related Models For Sale

Used Ford Ranger
120 Great Deals out of 5,051 listings starting at $1,500
Used Toyota Tacoma
581 Great Deals out of 42,014 listings starting at $2,500
Used GMC Sonoma
5 Great Deals out of 375 listings starting at $1,900
Used Ford F-150
3,153 Great Deals out of 231,767 listings starting at $1,300
Used GMC Sierra 1500
1,178 Great Deals out of 62,310 listings starting at $1,995
Used Dodge Dakota
85 Great Deals out of 3,476 listings starting at $1,475
Used Chevrolet Blazer
5 Great Deals out of 866 listings starting at $950
Used Dodge Ram 1500
350 Great Deals out of 10,829 listings starting at $1,988
Used Chevrolet Camaro
426 Great Deals out of 31,673 listings starting at $3,495
Used Chevrolet C/K 1500
829 listings starting at $2,600

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.