Fuel injectors are are not spraying. Do have fuel to throttle body.replaced pump and relay. What controls power to injectors?

70

Asked by Jan 14, 2013 at 07:13 PM about the 1991 Chevrolet Astro CL RWD

Question type: Maintenance & Repair

4 Answers

7,365

Fuel injectors are electric. When the injector is energized, an electromagnet moves a plunger that opens the valve, allowing the pressurized fuel to squirt out through a tiny nozzle. The nozzle is designed to atomize the fuel or to make as fine a mist as possible so that it can burn easily. I find it hard to believe that all the injectors are bad or not working. How do you know they are not spraying fuel? Have you checked them?

6 people found this helpful.
3,305

have to check power feed and ground signal to the injectors

6 people found this helpful.
Best Answer Mark helpful
70

Yes, I have air filter etc, off and when cranking engine see no spray. We very much appreciate suggestions and help. If we add a little fuel directly, it starts right up.

6 people found this helpful.
70

I replaced all fuses in main box.cleaned all electrical connections around engine compartment with a spray on electronic connection cleaner. Don not know exactly which one worked, but it started right and runs good. Thanks for all of the suggestions.

1 people found this helpful.

Your Answer:

Astro

Looking for a Used Astro in your area?

CarGurus has 143 nationwide Astro listings starting at $1,600.

ZIP:

Chevrolet Astro Experts

  • #1
    Tom Demyan
    Reputation
    370
  • #2
    celica_gt_pimp
    Reputation
    360
  • #3
    John Saffrahn
    Reputation
    290
View All

Related Models For Sale

Used Chevrolet Astro Cargo
111 listings starting at $2,800
Used GMC Safari
77 listings starting at $3,250
Used Ford F-150
2,357 Great Deals out of 199,530 listings starting at $1,300
Used Chevrolet Camaro
269 Great Deals out of 27,309 listings starting at $2,900
Used Chevrolet Suburban
318 Great Deals out of 21,917 listings starting at $1,800

Used Cars For Sale

2004 Chevrolet Astro For Sale
11 listings starting at $2,999
2003 Chevrolet Astro For Sale
30 listings starting at $4,977
2002 Chevrolet Astro For Sale
26 listings starting at $1,600

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.