Question about 1990 Pontiac Trans Sport

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Fuel pump fuse blows quick

Car will not run,find blown fuel pump fuse,put new one in starts fuse gets red hot then blows

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Could it be over amping from the alternator is pushing 17 amps and it should be 12 amps

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You have a short between the fuse and the reset valve . you have to trace the wires in between the fuse box and the fuel reset valve to see if they are pinched and a short is occuring.Follow the wiring from the fuse towards the back .

Posted on Dec 15, 2008

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I have a 1994 bonneville 3.8-i replaced my fuel pump recently, i keep having my fuel injector fuse blow, i took the injectors off and tested and cleaned them,the car seems to run real good


You have a short in the wiring to the fuel pump.. Go back and check all the wiring you touched. you may have not routed the wires at the tank correctly and they are shorted (crushed).. SINCE IT HAPPENS SOMETIMES.. I WOULD put in a new fuse turn on the key start the engine and look at the wires near the fuel pump and move them to see if you can create the short and find it. you will know when you find it because the engine will stop running as the fues blows. Don't take anything else apart till you cure the first problem. The very worst thing it can be is a short inside the tank at the pump. Post and let us know what you find.

Mar 29, 2015 | 1994 Pontiac Bonneville

1 Answer

Fuel pump keeps blowing fuses


The fuse is designed to protect your wires from melting due to current overload. faulty fuel pumps may use more power before failure, so Cody change your fuel pump and filter, the result will amaze you

Jan 03, 2014 | GMC Cars & Trucks

1 Answer

Changed starter on 2000 sonoma, the heat shield touched hot wire on solinoid and arched but quickly moved it, now the fuel pump don't work? how do i check fuel pumd all fuses are not blown?"


did you check the fuel pump relay should be in the glove box all the way in the back little plastic cover i think there are like three relays one is for the pump need to check it

Feb 23, 2013 | 2000 GMC Sonoma Extended Cab

1 Answer

Will not start and checked fuel pump no power to fuel pump i also have blown fuse for ecmb that blows as soon as i replace it


ECM B fuse supplies a constant 12v hot at all times to the VCM/PCM and to the fuel pump relay. The fuse is blowing telling you that there is a short to ground somewhere. Try this, take the fuel pump relay out and put a new fuse in. If it doesn't blow put the relay back in and if it blows then try a new relay. The relay may be shorted to ground internaly. Other wise you'll have to trace the wires to the VCM and the pump relay to look for a chafed wire that's contacting metal. The wire coming from the ECM B fuse is orange and has a splice in it going to the pump relay and the VCM/PCM.
Hope this helps.....Andrew

Mar 28, 2010 | 1999 Chevrolet S-10 Pickup

1 Answer

Efi fuse short in a 1993 sr5 pickup. put the fuse in and it'll start sometimes and then blow the fuse right away down the road or it'll just blow the fuse right when i turn it on...


may be the fuel pump short out.
unplug the fuel pump connector to see if the fuse still blow.
if the fuse is not blown when you try to start then the fuel pump is bad

Mar 07, 2010 | 1993 Toyota Pickup

4 Answers

OK i have a 1999 gmc Yukon i just changed the fuel pump spark plugs ing coil control module wires but she still wont crank she starts then shuts off whats wrong HEPL ME PLZ


I suppose that you mean it starts but doesn't continue to run. And if you try to start it right away it'll just crank. The fuel pump is on in crank but not in run ( maybe ). Find the fuel pump relay in the underhood fuse relay panel and use a test light to cheak the pins for power and ground. First with the test light hooked to a good ground, check to see if it works first ( touch the battery positive ) then touch all the pins of the relay ( removed ) One should be hot all the time ( if not the fuel pump fuse is blown) another should be hot with the key on. one of the others will be hot only in crank ( this is the fuel pump) The last other is ground with the engine running after started. The one thats hot in crank put power to it with a jumper wire and start the engine ( it'll run ) the fuel pump also gets turned on by the oil pressure switch and the fuel pump fuse is blown it'll also not run the engine. But it'll run right after it's cranked and quit

Nov 14, 2009 | GMC Yukon Cars & Trucks

1 Answer

Fuse keeps blowing for fuel pump


The fuel pump is most likely "going bad" -- the motor winding is begining to short and pulling too much current.

Charlie

Sep 28, 2009 | 1996 Volvo 850

1 Answer

No power to fuel pump and the ecmb fuse bows as soon as i put it


Unplug all wires to the distributor, coil, fuel pum and injectors, then see if the fuse blows, if it does, sounds like an ECM failure.

Sep 26, 2009 | 1993 Chevrolet S-10 Blazer

1 Answer

Fuel pump fuse keeps bpowing


the fuel pump is drawing too much current and is starting to go. Assuming you have correct size fuse. I would replace it.

May 13, 2009 | 1995 Ford Explorer

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