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1995 Ford F350 not getting fuel


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Twistedsteel92
Novice

Jun 16, 2012, 10:24 AM

Post #1 of 11 (7184 views)
1995 Ford F350 not getting fuel Sign In

Hello, I am having a fuel issue with a 1995 Ford F350 that has the 460 engine. The odometer shows 250,000 miles but the engine looks like it was replaced somewhere along the way. The truck was running at an idle and then stopped. When I turn the key to the start position I do not hear the pump cycle. The front fuel pump is about a year old and I replaced the fuel filter at the time I replaced the pump. The rear pump was also working at the time the truck stopped and now neither one will cycle. I have not found information online specific to this problem. There are postings about the fuel relay and the fuel tank selector switch on the dash. Any help would be appreciated.


Discretesignals
Ultimate Carjunky / Moderator
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Jun 16, 2012, 12:17 PM

Post #2 of 11 (7121 views)
Re: 1995 Ford F350 not getting fuel Sign In

You need to locate the fuel pump relay. Then have someone turn the ignition on while you feel or hear the relay to see if it clicks on and then off. If it clicks, that means the PCM is commanding the relay. From there you check the relay itself to make sure it doesn't have bad contacts. If the relay is good, check for power in the relay cavity on pin 30 with the ignition on. If you have power, put the relay back in and check for power down at the pump connector on which ever tank you have selected.

Let us know what you find out. If you get to the pump and have power or not after checking up at the relay or the relay doesn't click, we'll give you further info.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Jun 16, 2012, 12:18 PM)


Twistedsteel92
Novice

Jun 16, 2012, 12:29 PM

Post #3 of 11 (7113 views)
Re: 1995 Ford F350 not getting fuel Sign In

Can you tell me which one of the relays is the fuel relay? There are three in the fuse box under the hood. I swapped the three relays and did not hear the pump cycle. I am going to drop the front tank and check the pump. As I mentioned I do not hear either pump cycle when I move the ignition to the run position. Can you tell me what the PCM is?


Twistedsteel92
Novice

Jun 16, 2012, 12:58 PM

Post #4 of 11 (7103 views)
Re: 1995 Ford F350 not getting fuel Sign In

I put the key in the run position and moved the fuses in the box under the hood to the closest position to the driver fender. Each of them makes a clicking sound when in the first position. There is also one that was added by someone that is also clicking when moved to the first position in the fuse box. Is ther a way to check the fuel selector switch or jump it?


Sidom
Veteran / Moderator
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Jun 16, 2012, 1:22 PM

Post #5 of 11 (7095 views)
Re: 1995 Ford F350 not getting fuel Sign In

What are you using to test for power? Test light, Voltmeter, etc???


Twistedsteel92
Novice

Jun 16, 2012, 2:01 PM

Post #6 of 11 (7084 views)
Re: 1995 Ford F350 not getting fuel Sign In

I used the fuse box under the hood. The 1st plug is hot when the key is in the run position. I pulled the pump and the filter that attaches to the pump decomposed and might have been drawn into the pump. I connected a battery charger to the pump and it does not cycle. I tried reversing the = & - and it tried to cycle but did not. I am going to try to replacing the pump.


Sidom
Veteran / Moderator
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Jun 16, 2012, 3:17 PM

Post #7 of 11 (7058 views)
Re: 1995 Ford F350 not getting fuel Sign In

I'm not to sure how you would use a fuse box to check for voltage.

But if you already have the pump out then it sounds like you're gonna change it.

Just becareful jumping those, they have fuel in them and they really aren't designed to run dry. You could damage the pump or even hurt yourself...

Good luck


(This post was edited by Sidom on Jun 16, 2012, 3:18 PM)


Twistedsteel92
Novice

Jun 16, 2012, 4:03 PM

Post #8 of 11 (7046 views)
Re: 1995 Ford F350 not getting fuel Sign In

The first responder said to check the relay by listening for the "click" when it opens when power is applied. They all make the clicking noise when power is applied to them. I don't know which one of the three is the fuel pump relay and can not find a diagram online. I will get the pump tomorrow and let you know if that corrects the problem. I am not sure if the rear pump is also out but it does not cycle on when I select that tank. The truck was running fine and then just stopped. Like I said the strainer looks like it decomposed and maybe that was drawn into the pump.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jun 16, 2012, 4:34 PM

Post #9 of 11 (7034 views)
Re: 1995 Ford F350 not getting fuel Sign In

 

I hope you checked the Inertia switch











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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on Jun 16, 2012, 4:35 PM)


Sidom
Veteran / Moderator
Sidom profile image

Jun 16, 2012, 4:34 PM

Post #10 of 11 (7031 views)
Re: 1995 Ford F350 not getting fuel Sign In

Well since you have it out and it's marginal it might be best to just change it out.
You can listen & feel relays and that will let you know something is active.
If for some reason the new pump doesn't work then you are probably going to want to get a hold of a voltmeter or 12v test light so you can chase the problem down....

I'm assuming you have already check the inertia switch to make sure it didn't get tripped. It's in one of kick panels or on the floor board under the dash.....


Discretesignals
Ultimate Carjunky / Moderator
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Jun 16, 2012, 6:14 PM

Post #11 of 11 (7019 views)
Re: 1995 Ford F350 not getting fuel Sign In

I imagine if the pump ate pieces of the sock that would trash the pump. Make sure that there isn't anything laying down in the bottom of the fuel tank before installing your new pump. The sock doesn't filter out small pieces of metal or other small contaminants.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Jun 16, 2012, 6:17 PM)






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