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Old 03-23-2009
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need help with power to fuel pump

went to start it up one morning and wouldnt start so started with basic question does it have spark?...does it have fuel has spark no fuel so i listened for my pump to come on and it did not checked the relasy and they are good what else should i check the pump works i dropped the tank and put power to the pump and it spins so where should i check and what should i look for
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Old 03-23-2009
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see if yours has a fuel cut off switch. Its under the dash, under the carpet on the passenger side. There is a red reset button. if the unit is out, you can pull the two wires off and connect them together(temporarily) to bypass it (if it is malfunctioning). Hopefully hitting the button will fix it.

How did you determine the relay was good. Did you swap it with another one?
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Old 03-23-2009
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yes and i did press the inertia switch which it wasnt tripped but that did nothing i will try to bypass it and see if that does anything but i need my truck asap so i may just wire it up to a switch but i would like to fix it the right way
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Old 03-23-2009
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I see that you are back on here. Got my bumper yet?
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Old 03-23-2009
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When you checked the pump was it in gas? How long did you test it for? I have replaced 6 fuel pumps in my truck in 2 years and I have seen a couple of them that would not run the truck, I could pull em, check em and they would run with no trouble. Next I would check your ground wire and make sure its good, then trace down the main power wire. How did you check the relay?
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Old 03-23-2009
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we ohmed out the relay and replaced it with a known working one thats how we checked it i figured its not the pump it just were not getting power to it since the pump is not turning on and robert you got your money back so do not start anything please grow up and if you have somthing to say pm me but i dont see why you would
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Old 03-23-2009
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You know what, I will pm you but you never seemed to reply to lets see...any of the ones I ever sent you after you got my $100. I am done posting here for now so you can go back to getting the help you need from the other respectable members on here.
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Old 03-23-2009
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i responded dont you remeber th 12 page thread... with proff the money was retured but go ahead ill be happy to respond to your pms even tho i have no idea what the problem is
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Old 03-23-2009
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You need to clean your pm box out first. Thanks
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Old 03-23-2009
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done inbox has been cleared

Last edited by bruiser; 03-23-2009 at 05:11 PM.
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Old 03-23-2009
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try the bypass I mentioned on the inertia switch. Even though its pressed, it could still be bad.
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Old 03-24-2009
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+1 the inertia switches do go bad rarely. I don't knwo where you're located or where you park your truck, but i've seen problems like this from animals chewing up wires. make sure all the wiring to the pump is in good condition. and as someone else mentioned check you grounds and clean you battery cables/terminals. It's suprising how often something as simple as a bad connection is the problem.
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Old 03-24-2009
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Quote:
Originally Posted by My91Ranger View Post
When you checked the pump was it in gas? How long did you test it for? I have replaced 6 fuel pumps in my truck in 2 years and I have seen a couple of them that would not run the truck, I could pull em, check em and they would run with no trouble. Next I would check your ground wire and make sure its good, then trace down the main power wire. How did you check the relay?
buy from ford next time :D !
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Old 03-25-2009
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ok so the inertia switch is good i checked voltage at the connector at the pump and i have voltage but it jumps from 11.97 to like 7volts it rarley stays at 11.97 for more than a sec or 2
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Old 03-28-2009
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so i got it where the voltage hold...bad groud...but my pump still does not power up i even bought a new pump and that did nothing so i am now proceding to wire it to a switch i make it into a how to or somthing idk why anyone would want to hot wire their fuel pump but o well....ill keep ya'll posted
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