Had a 5 th fuel pump replaced, would'nt start after a few days.. So added a extra ground wire to chassis, replaced plug / spark wires. I'm wondering if its the Ignition switch or another poor grou ,

Asked by Jan 23, 2017 at 07:58 PM about the 2000 Chevrolet Blazer LT 4-Door RWD

Question type: Maintenance & Repair

Blazer 2000 replaced fuel pump 5 times.. added extra ground wire now not
starting. I hear a sound near the dash by the radio , like buzz , electrical
sounding

8 Answers

76,365

Are you sure the fuel pump is not running? There is a fuel pump relay in the fuse box. Turn the key to on, can you hear the fuel pump prime up? Just wondering if you have another problem.

Relays good,had scan done everything checked out from computer to relay fuse box working find,

76,365

Can you hear the fuel pump run with the key on? I'm thinking you have a fuel pressure issue.

have to jump it drained battery now, but I thought I heard it come on when I checked it today .. sometimes I heard it , when I don't hear it come on I know its not gonna start, its a mystery

76,365

The fuel pumps will run to a point, they prime up then shut off if you listen. When the vehicle is running it is hard to hear. So I'm thinking you may have a fuel pressure issue. Get your battery charged back up, and find a fuel pressure gauge to hook up to the Schrader Valve, turn the key to on and see what the fuel pressure is. Turn the key off and watch the gauge to see if it drops fast. Fuel pressure should be 56 to 63 lbs.

Thank you for your help, I'll have that done Wednesday. If the fuel pressure isn't between 56 to 63 lbs.is it a sensor ? Or where do I go from there.. I appreciate you answering my questions , this has been a headache for a year already..

76,365

You have a new fuel pump, just turn the key on and listen for it to prime up. Must know if it turns on. If the fuel pressure drops, you have either bad fuel regulator, or injectors & lines. We'll cross that bridge when we get there.

ok, Thank you once again

Your Answer

Blazer

Looking for a Used Blazer in your area?

CarGurus has 933 nationwide Blazer listings starting at $950.

ZIP:

Chevrolet Blazer Experts

  • #1
    Andrew Olsen
    Reputation
    2,120
  • #2
    yetilikesbeer
    Reputation
    1,410
  • #3
    Rowefast
    Reputation
    1,080
View All

Related Models For Sale

Used Chevrolet Tahoe
792 Great Deals out of 41,770 listings starting at $1,987
Used Chevrolet S-10
13 Great Deals out of 1,209 listings starting at $1,600
Used GMC Jimmy
203 listings starting at $2,500
Used Chevrolet Silverado 1500
2,655 Great Deals out of 173,877 listings starting at $955
Used Ford Explorer
1,198 Great Deals out of 69,506 listings starting at $1,000
Used Jeep Grand Cherokee
1,036 Great Deals out of 72,170 listings starting at $1,195
Used Chevrolet Camaro
440 Great Deals out of 31,638 listings starting at $1,450
Used Chevrolet C/K 1500
822 listings starting at $1,995
Used Ford F-150
3,192 Great Deals out of 223,412 listings starting at $1,200
Used Chevrolet Suburban
491 Great Deals out of 24,160 listings starting at $1,799
Used GMC Yukon
601 Great Deals out of 20,282 listings starting at $2,500
Used Toyota 4Runner
336 Great Deals out of 26,757 listings starting at $1,800

Used Cars For Sale

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.