1991 Chevy Suburban valve body injection:

1991 CHEVROLET SUBURBAN
Avatar
THE_HERB_MAN
  • MEMBER
  • 1 POST
Engine Mechanical problem
1991 Chevy Suburban V8 Four Wheel Drive Automatic
----------------------------------------------------------------
It won't start I changed pressure reg.& injectors ,getting fuel to valve body ,pour in a little gas it will run a few seconds and quit.Fuel seems to be going into the body but nothing comes out.
May 19, 2008 at 6:38 PM
Advertisement
Avatar
BLACKOP555
  • ASE Certified Mechanic
  • 10,386 POSTS
  • ASE Certified Mechanic
hook up a noid light to the fuel injectors and crank the engine it should pulse, both of them. if light doesnt flash then check for +12 volts at one terminal with key on and hte other one should have none, if there is constant ground or no ground when cranking you could have a cks problem or a error with your fuel injector relay if equipped. and maybe even a bad ECM.
May 19, 2008 at 7:20 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.