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Did this happen all at once? Has anything been done to/with the electrical system-[radio-cd] or such? Disconnect the battery and charge it.Have battery checked.If battery tests good, you have something drawing it down.
Report back-one of us will be able to guide you .
I went to your profile and pulled up your previous post. I would get a test light and remove the negative battery cable(have the battery charged) make sure the ignition and all lights are turned off, put one end of the test light on the negative battery post and the other end on the disconnected cable. The test light should light telling you that you have a current draw. Then disconnect one at a time, and then retest with the test light, the alternator wires and the fuel pump relay. I suspect the alternator, but you will need to unhook and test with the test light until you find the culprit. Good luck.
my battery is new so it is charged. it seems to happen all at once. sometimes the truck will start and sometimes not when it does the motor will act like it wants to die but it will kinda idle.whem it doesnt start the fuel pump wont come on and the relay doesnt 'click' dont know any ideas
i got the truck top run i jumped a piece of wire from the 12 volt constant on the fuel pump relay to the wire that gets hot when u turn the key on. i hooked up a test light to the 12 volt and it lite up but when i hooked it up to the other wire it barely lite up????does anyone have any clues on what this could mean??? i am so lost but love my ford.does anyone know how to fix this???? thank u very much