no power to fuel pump
#1
no power to fuel pump
I have a 96 f-150 eddie bauer 4x4 302/ dual tanks, it was recently stolen and recovered, i replaced all of the stolen parts with the exeption of the exhaust, the truck has been running/not driven for a few hours total on different days, however, when i went to take it elsewhere to work on it, I shut it off at the autoparts, and it hasn't started back. I used to hear the fuel pumps prime, but not anymore, I have changed the relays, also replaced the steering column, when i jump the wires under the hood leading to the fuel pump, the pump works, however, I dont know what to check next, please help...
#2
#4
#6
Had a similar problem with a Taurus.
Turned out when I plugged in my code reader and did a KOEO test, nothing happened. Baffled me. Engine cranked though.
After much poking and prodding, I went out to the car and was about to put a bullet through the engine. I leaned on the radiator shroud, (with the key on), and all the key-on relays kicked on. The ECM harness touched the underside of the shroud, with the ECM right there as well.
Pulled the shroud, disconnected and reconnected the ECM, and the problem was solved. The ECM contacts can corrode, water might get in, etc.
Check there--you might be fixin' this fer free.
Turned out when I plugged in my code reader and did a KOEO test, nothing happened. Baffled me. Engine cranked though.
After much poking and prodding, I went out to the car and was about to put a bullet through the engine. I leaned on the radiator shroud, (with the key on), and all the key-on relays kicked on. The ECM harness touched the underside of the shroud, with the ECM right there as well.
Pulled the shroud, disconnected and reconnected the ECM, and the problem was solved. The ECM contacts can corrode, water might get in, etc.
Check there--you might be fixin' this fer free.
#7
i have the same problem but check the 20 amp maxi fuse in the fuse box under the hood its the last one away from your fender it is the one that runs power to the pump first time that it happened to me i was able to drive it for a day but now as soon as i turn on the key it blows the fuse so ive got a short somewheres hopefully all yours is the fuse keep me posted
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#8
Got'er runnin
Thanks everybody for the help, I checked the fuses, and the Enertia switch, which had power, and it led me right to the Selector switch, being as i had power all the way to the switch, at the #2 prong, but nothing happen at the #3(rear tank pump) or the #1(Front pump), the fuel guage still read the tank change , because the sending unit, is seperated on the other side of the switch, so it could be still working, but the tanks won't energize....to check it, place a continuity tester on prongs #2&3 (rear tank) , toggle the switch, there should be continuity, do the same for prongs #1&2 for front tank, hope it helps someone else....
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