Question about Ford F-150

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I have a ford f150 1993 model dual fuel and neither one of my fuel pumps sound like they are working put a new. Fuel relay switch coil and several other things and stil not starting

Neither one of my fuel pumps sound like they are working when I turn over the key front nor back tank it won't start and I've changed the coil the fuel relay switch and several other things and its still not starting what else could it be I also forgot to mention I checked all my fuses too my inertia switch was popped PM I I pushed the red button down still nothing there is pressure in my fuel lines

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  • 11 Answers

First let's confirm that it is a fuel problem. Get a Coleman propane bottle and a torch that attaches to said bottle. Find a way to inject propane into the intake system. By filter or by maf sensor. As you inject propane into the system have someone start the truck. If it starts for 5 seconds or more then it is a fuel problem. If it does not start then it is a spark issue. Try this method and update me as to what happened and I'll try to help you get that truck going. Sorry only way to answer was to edit my post, it is quiet safe. Learned that in mechanics class in college. Safer than starting ng fluid. But i understand need your hesitation. Good luck

Posted on Jul 12, 2019

Testimonial: "It's a gas tank ummm I don't want to blow myself up this doesn't spouts very safe I have never heard of this tactic but I appreciate your input I updated with a different question but your answer maybe the same idk"

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 5 Answers

SOURCE: 1995 FORD EXPLORER 4X4 6 CYL 4 DOOR WONT START

Fords have inertia fuel cut off switch. You need to check that first. If you dont have fuel. If you have fuel and no spark you need to check for inj pulse to injector. Make sure no fuses are blown. If no spark and no injector pulse then replace cranksensor.

Posted on Jan 11, 2009

robshow
  • 367 Answers

SOURCE: 2001 kia rio fuel pump does not work

Are you positive its the fuel pump? Have you tried running the pump with the return line off to see if it pumps fuel? They don't always have to make a noise.

Also refer to www.kiatech.info

Posted on Jan 21, 2009

dealt_soul
  • 296 Answers

SOURCE: 87 ford f-150 4.9 L. v6 fuel system

If you hear the relay click, but no pressure at all then it would be the fuel pump needing replacement

Posted on Feb 16, 2009

roniecon
  • 6927 Answers

SOURCE: 94 concorde

change crank sensor? if so replace control module (ignition module)

Posted on Jul 04, 2009

  • 9 Answers

SOURCE: '96 f150,4.9 six,dual fuel tanks,replaced front

I have a 1996 f150 and I had the same problem. I finally found out that the rear fuel pump is the main pump, and if it goes out then the front pump will not work either. There is a groud that both pump share on the rear cross member. If you are not getting good connection with the ground the fuel pumps will not work. Also if you replace the rear pump and it still does not work then your problem could be the fuel tank selector switch, it acts as a relay if it goes out then neither pump will work.

Posted on Aug 10, 2010

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Dodge dosen't use reset switches on the fuel pump circuit. The only company I know of that does is Ford and Ford companies like Mazda and Jaguar.

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