Not getting fuel now!
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Post Fiend
Joined: Mar 2011
Posts: 10,080
Likes: 5
From: Backwoods of Snowflake AZ
Not getting fuel now!
Ok so finally I got around to getting the timing as close as possible without it running correctly and she fired up. But that is only when priming it. It will get primed start up and die. So obviously it isn't getting fuel. I can hear the fuel pumps (both in tank and fuel rail ones) kick in but I am getting very little fuel if sometimes none out of the fuel rail pressure. What should I do or look for? Relay does kick in also and the inertia switch is set correctly.
She is a 1988 Ford F150 4x4 302 V8 C6 auto transmission dual tank truck.
On a side note to those whom was wondering how the truck will sound with the muffler (walker) it starts up and sounds awesome.
Thanks guys for any help.
Trav
She is a 1988 Ford F150 4x4 302 V8 C6 auto transmission dual tank truck.
On a side note to those whom was wondering how the truck will sound with the muffler (walker) it starts up and sounds awesome.
Thanks guys for any help.
Trav
Fleet Owner
Joined: Aug 2005
Posts: 23,666
Likes: 301
From: Easton,Ks
Take the supply fuel lines off as they go into the selector valve one at a time and point them into a bucket. Have someone turn on and off the key a few times and see if the fuel line is pumping out fuel. It should also have about 6psi fuel pressure at that point.
If they both put out fuel then take the fuel line off going into the high pressure pump and point it in a bucket. Do the same thing with the key. If you have fuel coming out of that hose then do the same thing with the fuel line going into the fuel filter.
Note that the line going into the fuel filter will be high pressure fuel up to 95psi into a blocked head.
If they both put out fuel then take the fuel line off going into the high pressure pump and point it in a bucket. Do the same thing with the key. If you have fuel coming out of that hose then do the same thing with the fuel line going into the fuel filter.
Note that the line going into the fuel filter will be high pressure fuel up to 95psi into a blocked head.
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Post Fiend
Joined: Mar 2011
Posts: 10,080
Likes: 5
From: Backwoods of Snowflake AZ
Brad already put 6 gallons of gas in the truck so I am not out of fuel.
Bill will try that after I try the relay just found out every time I went to start it the relay would start smoking (my brothers just told me) so I have some extra good relays going to replace it and try then see what happens.
Trav
Bill will try that after I try the relay just found out every time I went to start it the relay would start smoking (my brothers just told me) so I have some extra good relays going to replace it and try then see what happens.
Trav
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
Brad already put 6 gallons of gas in the truck so I am not out of fuel.
Bill will try that after I try the relay just found out every time I went to start it the relay would start smoking (my brothers just told me) so I have some extra good relays going to replace it and try then see what happens.
Trav
Bill will try that after I try the relay just found out every time I went to start it the relay would start smoking (my brothers just told me) so I have some extra good relays going to replace it and try then see what happens.
Trav
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Thread Starter
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Post Fiend
Joined: Mar 2011
Posts: 10,080
Likes: 5
From: Backwoods of Snowflake AZ
I haven't tried it yet but figure it is worth a shot. Going to trace all the way through the truck hopefully today yesterday got busy with our 89 F250 which is now having the same problem (not getting fuel up in the top end).
I may replace the fuel filter on both trucks just for the heck of it to know I have a new one need to find out how much it is first.
Trav
I may replace the fuel filter on both trucks just for the heck of it to know I have a new one need to find out how much it is first.
Trav
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Post Fiend
Joined: Mar 2011
Posts: 10,080
Likes: 5
From: Backwoods of Snowflake AZ
Ok so I replaced the fuel filter and relay and still nothing. I still hear both pumps kicking in. But yesterday when I took the line back off the new filter (after the filter towards the engine) I had tons of pressure come out of the line but no fuel. So I traced it back no fuel coming out before the fuel pump on rail nor after the fuel selector valve on the bottom line. I am having troubles getting the top line off though. How do you get to it with the crossmember in the way?
Also my dad says maybe my injectors are clogged since the fuel line had so much pressure. Do y'all think this is correct?
Should I pull a line off before the fuel selector valve and try seeing if anything comes off and which one do I pull for the supply of fuel from my front tank (rear tank doesn't have gas)?
Trav
Also my dad says maybe my injectors are clogged since the fuel line had so much pressure. Do y'all think this is correct?
Should I pull a line off before the fuel selector valve and try seeing if anything comes off and which one do I pull for the supply of fuel from my front tank (rear tank doesn't have gas)?
Trav
Thread Starter
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Post Fiend
Joined: Mar 2011
Posts: 10,080
Likes: 5
From: Backwoods of Snowflake AZ
As of right now I have tons of air pressure but no fuel at all coming out of the lines. That was only that one time too when I took the fuel line off the filter after that normal pressure.
Trav
Trav
Lead Driver
Joined: Jul 2007
Posts: 7,868
Likes: 9
From: Rhode Island
Your dad isn't correct. There's a fuel pressure regulator to prevent that.
If you have air, and no fuel BEFORE the rail mounted pump, you either have a problem with your selector valve or the in-tank pump.
If you have air, and no fuel BEFORE the rail mounted pump, you either have a problem with your selector valve or the in-tank pump.