fuel pump blows

10

Asked by Apr 23, 2016 at 08:17 PM about the 2001 Oldsmobile Alero GL

Question type: General

I changed the fuel pump in my 2001 alero but the fuel pump fuse blows when I turn the key on I checked for power at the fuse panel and I only have power on the one side of the fuse.. what would cause the fuse to blow when I turn the key on

20 Answers

90,615

A direct short in the fuel pump circuit, the first thing ti do is unplug the pump at the tank then replace the fuse and turn on the key if the fuse does not blow then there is a short in the pump itself, if it still blows then you are going to have to trace out the main power wire to find where it has shorted to ground.

1 out of 1 people think this is helpful.
10

I put a new pump in fuse blew then I unpluged the pump and changed the fuse and same thing.

10

I tested the power at the fuse box and I only have power on one side

90,615

After the fuse blows that is the way it should be. So now you have to start tracing out the fuel pump power circuit to find the short, one place you might try checking first is the fuel pump connector, sometimes the little tabs get bent over and short out and the next place would be the fuel pump relay connections, if nothing there and you don't see anything obviously crushing the harness or any screws or bolts through it you may just have to run a separate power wire from the fuel pump relay to the fuel pump connector, remember to solder and heat shrink all the connections if you have to go that route.

1 out of 1 people think this is helpful.
10

So I need to run a wire from where I have no power in the fuse box back to the fuel pump. Which wire do I replace the new one with

90,615

No, it will be from the fuel pump relay back to the fuel pump connector, so you are going to have to gain access to the bottom of th power distribution box to access the fuel pump relay wiring. I'll get back to you on the color if I can find a good diagram.

90,615

Terminal J6 under the power box Gray wire.

10

So I need to run a wire from the fuel pump relay in the fuse box back to the fuel pump

90,615

Yes but only if you can't find the real short.

10

So I let the car sit for a couple days put a new fuse in and it didn't blow turning the key on. Didn't start it tho cause battery is dead. But does that make any sense

10

So i charged up the battery and the car is running now I never did nothing to it.

90,615

If there's a short in the fuel circuit it will most likely blow when you start to move it.

10

I had it running for about an hour then drove it around the block for about 10 min. Everything seems to be working now. I don't get it

90,615

I'm thinking the harness could be pinched somewhere and every once in a while it will get pinched just right and short out. Did you ever look underneath for a harness problem?

10

Yes I looked underneath and the harness and wiring all looks good under there

90,615

At least if it happens again you know you will have to run a separate power wire from the relay back to the pump, just make sure you cut both end of the stock wire so it won't cause you any grief later on.

10

Would a bad ground cause this to happen someone told me to splice into the ground wire on the harness and run a ground wire to the body. Does that make sense to u

90,615

Only if it was shorted to power, I have heard of people running another ground to the fuel pump but most of those had a connector problem at the pump.

10

If it was shorted to power the car wouldn't be running right

90,615

That's right.

Your Answer

Add photo

Related Questions

Alero

Looking for a Used Alero in your area?

CarGurus has 494 nationwide Alero listings starting at $1,990.

ZIP:

Search Oldsmobile Alero Questions

Oldsmobile Alero Experts

#1 sun4shine2006
sun4shine2006
Reputation 510
#2 Nir Eliyaho
Nir Eliyaho
Reputation 200
#3 tenspeed
tenspeed
Reputation 190
View All

Related Models For Sale

Used Toyota Camry
790 Great Deals out of 89,572 listings starting at $950
Used Ford Focus
513 Great Deals out of 56,277 listings starting at $800
Used Nissan Altima
846 Great Deals out of 78,884 listings starting at $1,677
Used Chevrolet Malibu
798 Great Deals out of 81,361 listings starting at $1,500
Used Pontiac Grand Prix
20 Great Deals out of 2,873 listings starting at $1,995
Used Chevrolet Impala
502 Great Deals out of 29,109 listings starting at $1,100
Used Ford Taurus
203 Great Deals out of 20,163 listings starting at $1,510
Used Honda Accord
705 Great Deals out of 87,160 listings starting at $699
Used Toyota Corolla
662 Great Deals out of 71,905 listings starting at $600
Used Chevrolet Cavalier
1,045 listings
Used Volkswagen Jetta
356 Great Deals out of 36,659 listings starting at $995
Used Honda Civic
503 Great Deals out of 87,905 listings starting at $1,499
Used Ford Mustang
364 Great Deals out of 46,976 listings starting at $1,500