Bad engine vibration
Lead Driver
Joined: Jun 2004
Posts: 6,362
Likes: 593
From: Amarillo, TEXAS!
It really does sound like fuel starvation at this point. Is there any way you can get your hands on a fuel pressure gauge? Did this problem seem to start pretty much immediately after you changed the fuel filter? Specifically, which fuel filter did you use? Did it already have a lid attached to it?
Lead Driver
Joined: Jun 2004
Posts: 6,362
Likes: 593
From: Amarillo, TEXAS!
Did you make sure to get the old o-ring out and install the new one? I don't mean to imply you don't know what you're doing, BTW. It's just that the filter lid needs to be screwed all the way down to open the valve in the center post of the housing to allow fuel to flow to the heads. If it ended up with 2 o-rings, it may not depress the plunger enough to open the valve.
If you do get a fuel pressure gauge, it should go up to 100 psi, and you'll need a #4 male o-ring boss adapter to whatever thread size will work with the gauge fittings. Any shop that does hydraulic work should have the adapters.
If you do get a fuel pressure gauge, it should go up to 100 psi, and you'll need a #4 male o-ring boss adapter to whatever thread size will work with the gauge fittings. Any shop that does hydraulic work should have the adapters.
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Mountain Pass
Joined: Apr 2013
Posts: 151
Likes: 6
Did you make sure to get the old o-ring out and install the new one? I don't mean to imply you don't know what you're doing, BTW. It's just that the filter lid needs to be screwed all the way down to open the valve in the center post of the housing to allow fuel to flow to the heads. If it ended up with 2 o-rings, it may not depress the plunger enough to open the valve.
If you do get a fuel pressure gauge, it should go up to 100 psi, and you'll need a #4 male o-ring boss adapter to whatever thread size will work with the gauge fittings. Any shop that does hydraulic work should have the adapters.
If you do get a fuel pressure gauge, it should go up to 100 psi, and you'll need a #4 male o-ring boss adapter to whatever thread size will work with the gauge fittings. Any shop that does hydraulic work should have the adapters.
I will see if I can pick up a gauge and fitting in the next day or two. If this test doesn't tell me that my I am lacking fuel I am going to have to buy some type of scanner to data log .
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Mountain Pass
Joined: Apr 2013
Posts: 151
Likes: 6
Looks like you're spot on pikachu. I hooked up the fuel pressure tester to the top port on the fuel bowl. I have zero fuel pressure. Literally zero. I hooked my air compressor to the gauge to make sure it wasn't crap. Should I check the lower port or pull off the line after the filter and see if that's giving me anything or should I just drop the tank and do the hutch mod?
Lead Driver
Joined: Jun 2004
Posts: 6,362
Likes: 593
From: Amarillo, TEXAS!
Checking the other port isn't necessary at this point, it would be lower anyhow. Have you tried running it on a fuel source other than the tank yet? If not, remove the fuel pump supply line and clamp a length of 3/8" hose on the fitting, then run it into a container of fuel. See what that gives you for pressure. If it's the same, the pump has cratered. If it comes up, the screens in the tank could be clogged, or the fuel pressure regulator isn't doing its job.
The screens are far more likely to be the problem, but the FPR is easier to check. The problem is once you remove the fuel line from the return on the filter housing, you need to have a new vibra lok sleeve on hand to put it back together. I'm not sure if you have a source for them there, but they are available online. Possibly a Ford dealer would have them, too.
The screens are far more likely to be the problem, but the FPR is easier to check. The problem is once you remove the fuel line from the return on the filter housing, you need to have a new vibra lok sleeve on hand to put it back together. I'm not sure if you have a source for them there, but they are available online. Possibly a Ford dealer would have them, too.
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Mountain Pass
Joined: Apr 2013
Posts: 151
Likes: 6
Checking the other port isn't necessary at this point, it would be lower anyhow. Have you tried running it on a fuel source other than the tank yet? If not, remove the fuel pump supply line and clamp a length of 3/8" hose on the fitting, then run it into a container of fuel. See what that gives you for pressure. If it's the same, the pump has cratered. If it comes up, the screens in the tank could be clogged, or the fuel pressure regulator isn't doing its job.
The screens are far more likely to be the problem, but the FPR is easier to check. The problem is once you remove the fuel line from the return on the filter housing, you need to have a new vibra lok sleeve on hand to put it back together. I'm not sure if you have a source for them there, but they are available online. Possibly a Ford dealer would have them, too.
The screens are far more likely to be the problem, but the FPR is easier to check. The problem is once you remove the fuel line from the return on the filter housing, you need to have a new vibra lok sleeve on hand to put it back together. I'm not sure if you have a source for them there, but they are available online. Possibly a Ford dealer would have them, too.
I am pretty sure I have the vibra lok sleeve on the shelf. I will double check before disconnecting the FPR. But to clarify I wont need anything special to remove the rear line from the fuel pump to test it from a separate source of fuel, right?
Lead Driver
Joined: Jun 2004
Posts: 6,362
Likes: 593
From: Amarillo, TEXAS!
The fuel lines to and from the tank use a spring lock type of fitting and uses a tool like in the link below for removal. It's the same as disconnecting an A/C fitting.
A/C Fuel Line Disconnect Tool Set at National Tool Warehouse
A/C Fuel Line Disconnect Tool Set at National Tool Warehouse
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Mountain Pass
Joined: Apr 2013
Posts: 151
Likes: 6
Man you are amazing! If you weren't in the republic of Texas I'd buy you a case of beer! My fuel pump was making noise but nothing more. I think I am going to do the hutch mod and add a helper pump in the near future to help alleviate some of the stress on my pump. Thanks!
Post Fiend
Joined: Mar 2007
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From: Texas
Postmaster
Joined: Jun 2010
Posts: 2,555
Likes: 9
From: Longview, TX
I'm late to the party, but I'll bring a case anyway... Good job on calling fuel pressure guys.
OP, IMO, a helper pump isn't needed if you do the hutch mod properly.
OP, IMO, a helper pump isn't needed if you do the hutch mod properly.