Won't start unless i dump fuel into throttle body

Asked by Apr 03, 2017 at 11:52 PM about the 2000 Chevrolet Blazer 2 Door LS

Question type: Maintenance & Repair

Put in New fuel pump and I am getting gas through
the filter and to the check valve at top of the motor
but it won't start unless i dump fuel into throttle
body and then only runs long enough to burn the
fuel I dumped in. Any suggestions?

4 Answers

20,945

Test for power to injector wires & its wire harness and injector connectors. Should see 12v

20,945

https://www.2carpros.com/articles/how-to-test-a-fuel-injector

1 of 1 people found this helpful.
20,945

Check for Ground (ohms & resistance) issues if high side of injectors have low volts. Should have low resistance from power wire to PCM.

75,585

I think enginecreator is on the path on this, check to see if you have injector pulse with a noid light. May be able to rent one from the auto parts store. Also verify the fuel pressure by hooking onto the Schrader Valve with at fuel pressure gauge. Fuel pressure should be 56 to 63 lbs.

Your Answer

Blazer

Looking for a Used Blazer in your area?

CarGurus has 919 nationwide Blazer listings starting at $950.

ZIP:

Chevrolet Blazer Experts

  • #1
    Andrew Olsen
    Reputation
    2,090
  • #2
    yetilikesbeer
    Reputation
    1,400
  • #3
    Rowefast
    Reputation
    1,070
View All

Related Models For Sale

Used Chevrolet Tahoe
835 Great Deals out of 42,632 listings starting at $1,980
Used Chevrolet S-10
13 Great Deals out of 1,197 listings starting at $1,550
Used Chevrolet Silverado 1500
2,490 Great Deals out of 177,844 listings starting at $699
Used GMC Jimmy
200 listings starting at $2,500
Used Chevrolet Camaro
475 Great Deals out of 31,744 listings starting at $1,450
Used Chevrolet C/K 1500
829 listings starting at $3,000
Used Ford F-150
2,936 Great Deals out of 215,786 listings starting at $1,295
Used Ford Explorer
1,058 Great Deals out of 71,188 listings starting at $2,100
Used GMC Yukon
604 Great Deals out of 22,373 listings starting at $1,200
Used Jeep Grand Cherokee
969 Great Deals out of 73,291 listings starting at $1,200
Used Chevrolet Impala
548 Great Deals out of 35,148 listings starting at $990

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.