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 4 Door LT

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

72,995

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,

72,995

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

72,995

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..

72,995

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

Add photo

Related Questions

Blazer

Looking for a Used Blazer in your area?

CarGurus has 1,143 nationwide Blazer listings starting at $1,500.

ZIP:

Search Chevrolet Blazer Questions

Chevrolet Blazer Experts

#1 Andrew Olsen
Andrew Olsen
Reputation 2,030
#2 yetilikesbeer
yetilikesbeer
Reputation 1,330
#3 Rowefast
Rowefast
Reputation 1,030
View All

Related Models For Sale

Used Chevrolet Tahoe
609 Great Deals out of 35,633 listings starting at $1,000
Used Chevrolet S-10
10 Great Deals out of 1,269 listings starting at $999
Used Chevrolet Silverado 1500
2,081 Great Deals out of 182,982 listings starting at $1,900
Used GMC Jimmy
245 listings starting at $3,295
Used Chevrolet Camaro
412 Great Deals out of 31,557 listings starting at $2,395
Used Ford Explorer
810 Great Deals out of 62,292 listings starting at $495
Used Jeep Grand Cherokee
917 Great Deals out of 70,240 listings starting at $500
Used Chevrolet C/K 1500
908 listings starting at $2,500
Used Jeep Wrangler
264 Great Deals out of 15,685 listings starting at $2,997
Used Ford F-150
2,143 Great Deals out of 180,735 listings starting at $1,500
Used Jeep Cherokee
403 Great Deals out of 39,983 listings starting at $1,900

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.