redhooks Posted May 15, 2009 Share Posted May 15, 2009 I have a 95' F-150 w/ a 300 six manual tranny. This winter one tank started to leak when filled too full, so we just didn't use it. Now it's spring and I ran both tanks pretty much dry, truck started to cough and I limped into town. Got about 1/4 full in each tank and I can't get it started. It almost fires when switching tanks while starting but not quite. Soo my question is: does the truck need to be running to switch tanks? and could it be a prob w/ fuel filter or fuel pump? I greatly appreciate any insight cuz i'm kickin myself for letting this happen. Quote Link to comment Share on other sites More sharing options...
fishing tech Posted May 16, 2009 Share Posted May 16, 2009 Each tank should have a "lift" pump in them and there should be a high pressure pump on the frame. With the switch on the front tank have someone turn the key on while you listen at the tank. You should here a buzz for about 2 seconds. Do the same thing with the back tank. Now if you don't hear anything at either tank you could have:bad pumpsBad fuel pump relaytripped inerta switchwiring problem.This should get you started. Quote Link to comment Share on other sites More sharing options...
The Grebe Posted May 17, 2009 Share Posted May 17, 2009 When I had one, mine didn't seem to? Nor does the 96 that I have now. I just turn on the key and once powered up, I could switch from tank to tank. Maybe by running them low, some crud got into your gas line filter? Quote Link to comment Share on other sites More sharing options...
redhooks Posted May 18, 2009 Author Share Posted May 18, 2009 I tied FishingTech's advice and heard a buzz on both tanks and am thinking about changing the inline filter. From what I read it says disconnect battery, open fuel caps and switch pressure relief switch on driver side floor before proceeding. Guess I'll swap out the filter and hope that dose it. Thanks for any insight. Quote Link to comment Share on other sites More sharing options...
sx2 Posted May 20, 2009 Share Posted May 20, 2009 i had the same thing happen. i put more parts to it and still didn't work, so i started to jump sensors, ended up being the tps sensor. that would be the throttle position sensor. Quote Link to comment Share on other sites More sharing options...
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