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Re: fuel pump fuse blows quick
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 .
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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.
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
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
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