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Ford F-Series Fuel Pump/Fuel System

109 messages,  Last post on Dec 04, 2009 at 1:47 PM

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What is this discussion about? Ford F-150, Truck

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#61 of 109 Re: 1989 F150 fuel problem [mwatkins] by sadcamper Jul 13, 2008 (6:05 am)
Replying to: mwatkins (Nov 26, 2007 1:13 pm) i'm new to this site and am having the same problem with my 1989 ford f150 rv. where do I get some answers to this problem. Have already replaced fuel filter. I head out to go camping and the truck runs fine for about 1 hour the first time and about 45 min. the second time. I don't trust it now. Replies to this message: mike9408 (Jul 13, 2008 8:39 am)
#62 of 109 Re: 1989 F150 fuel problem [sadcamper] by mike9408 Jul 13, 2008 (8:39 am)
Replying to: sadcamper (Jul 13, 2008 6:05 am) As stated before, the problem with mine was the quick connect at the fuel tank. I believe Ford made the clips too lite. They beggin to arc and corrode, when this happens it looses contact and the fuel pump (in the tank) shuts down. To correct it you need to come up with a better way to make the connection at the fuel tank as I did. Mike9408
#63 of 109 fuel pump/electrical by picco63 Jul 31, 2008 (10:41 am)
I have a 94 F-150 inline 6 engine with two in tank fuel pumps. I can't seem to get them to work. I put a new pump in the rear tank, changed all my fuses and relays, and finally installed a new wiring harness for the fuel system. All the parts I changed were genuine ford parts. Need help on what to do next. Replies to this message: mickeymouse2 (Jul 31, 2008 4:01 pm)
#64 of 109 Re: fuel pump/electrical [picco63] by mickeymouse2 Jul 31, 2008 (4:01 pm)
Replying to: picco63 (Jul 31, 2008 10:41 am) First check to see that your inertia switch hasn't popped. Usually located on passenger side kick pannel, floor board on drivers side, or sometimes behind rear seat. Its' a small black box with a red button that pops out when jared hard enough. If that checks ok, use a test light and with the key on in run position, see if power is going to it and out of it. Should be a two wire plug on your year, it might have tree wires. Usually the red wire is power in, and the green wire is power out to your pumps. Check that then re post with other questions.
#65 of 109 inertia switch(mickeymouse2) by picco63 Aug 06, 2008 (6:55 am)
The first thing I checked was the inertia switch. I even got another switch just to be safe. I am getting power through my harness right up to the last connection. The only thing left is to check the wires from that connection to the fuel pump. I connected a battery directly to the harness (red and black wires) and the fuel pump did not kick in. I think I got it. Thanks for your advice mickeymouse2.
#66 of 109 Will not start by dogbitekid Sep 28, 2008 (7:52 am)
2001 f150 gas 6.4 Ran fine would not start next day had frame mounted fule filter replaced was told it was completly blocked, fule pump tested psi 25. Factory psi was 35-55 Ran fine 2 weeks same problem will not start again. Is there more than one fule filter on this truck ? Would this psi keep truck from starting? Any other ideas?
#67 of 109 no fuel preasure by rpenn56 Oct 05, 2008 (2:48 pm)
I have a 1995 f150 pu . It' been parked aprox 2 yrs. drained tanks and put in new gas.I removed the gas line between filter and engine there's no gas flow from either tank when dash board switch is changed . the gauge changes levels.Just wondering where to start troubleshooting. thanks ron
#68 of 109 Will not start . Fuel pump . by bsega Oct 13, 2008 (6:25 pm)
I just bought a 1988 ford f150 . The truck was not driven for an extended time but was started by owner from time to time. There was a lot of smoke from the old oil on the engine block . I brought it home and washed it down with a water from a garden hose . Truck started fine & moved it about for a short time . Gas was a bit low . I parked it & was doing some cleaning . Tried to start it again & it just will not start . dropped in 3 gallons of gas & still will not start . I do not hear the pump (not sure if I should be able to ) Sprayed some quick start into the air intake & it fires up for just 1 sec or so but will not run . Can you please help . Is the pump in the gas tank and is there anything I can check . Replies to this message: mike9408 (Oct 14, 2008 5:08 am) bsega (Oct 14, 2008 4:57 pm) mike9408 (Oct 15, 2008 4:58 am)
#69 of 109 Re: Will not start . Fuel pump . [bsega] by mike9408 Oct 14, 2008 (5:08 am)
Replying to: bsega (Oct 13, 2008 6:25 pm) Is it a duel tank? If it is, try switching to the other tank. Also check to see if you are getting fuel through the fuel filter ( located in the frame rail between the fuel tank and the engine, left side I believe). Check and reset the roll over switch, Should be located in cab on the left side of the steering colume on the firewall. Will have a red button on top of it, push down on it to re-set. I can hear the fuel pump on my 1991, runs only for a second immediatly after turning on the ignition switch. I believe it is located in the fuel tank on the 88' as well, if you can't hear it try checking the fuel pump relay in the ingine compartment (drivers side on the finder well of the 6 cylinder, don't know what engine you have.) Replies to this message: bsega (Oct 14, 2008 4:57 pm) mike9408 (Oct 15, 2008 4:58 am)
#70 of 109 Re: Will not start . Fuel pump . [mike9408] by bsega Oct 14, 2008 (4:57 pm)
Replying to: mike9408 (Oct 14, 2008 5:08 am) I have a v6 engine single tank . Here is what I found so far . The truck has an external fuel pump & there was no power comming to it . The rollover switch is pushed in . I gave power direct to the pump & the truck now starts . I'm not sure where the fuel pump relay . I looked in the engine compartment drivers side fender & saw 2 small relay(one black & the other gray) like squre with green plug on the wireing harnes . The gray one was a bit hot . looks like there is no power going to the pump . I'm not sure if connecting the power direct ( only power when ignation is on) could damage the pump as it turns on as soon as I on the ignation & will not turn off .I'm worried 1) will I burn out the pump if I was to have the ignation ON 2) will I flood the engine or will the fuel go back into the tank . 3) how can I test the relay .   Thanks mike for the responce... Replies to this message: mike9408 (Oct 15, 2008 4:58 am)

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