Under cab fuel pump issue?
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Cross-Country
Joined: Jul 2005
Posts: 58
Likes: 1
Under cab fuel pump issue?
Recently my truck has started a low hum. I have tried to teach it the lyrics but the low hum persists.
It starts when the key is turned on, but before the engine is started. It does not change pitch once engine is running, just a low, constant hum.
If I turn the key on and not start the engine, it hums for a bit then abruptly shuts off. The source of the sound seems to be right at the canister filter directly below the drivers position, near the frame rail.
Based on this, is it likely I'm correct in the assumption my fuel pump may be going out and if so, what does it typically run to have it replaced?
It starts when the key is turned on, but before the engine is started. It does not change pitch once engine is running, just a low, constant hum.
If I turn the key on and not start the engine, it hums for a bit then abruptly shuts off. The source of the sound seems to be right at the canister filter directly below the drivers position, near the frame rail.
Based on this, is it likely I'm correct in the assumption my fuel pump may be going out and if so, what does it typically run to have it replaced?
Hotshot
Joined: Jul 2013
Posts: 14,302
Likes: 2,197
is their any chance the filter is due for changing…could also be clogged ahead of schedule due to fuel contaminates.
FTE Legend
Joined: Mar 2017
Posts: 31,976
Likes: 9,200
From: Western NY
Recently my truck has started a low hum. I have tried to teach it the lyrics but the low hum persists.
It starts when the key is turned on, but before the engine is started. It does not change pitch once engine is running, just a low, constant hum.
If I turn the key on and not start the engine, it hums for a bit then abruptly shuts off. The source of the sound seems to be right at the canister filter directly below the drivers position, near the frame rail.
Based on this, is it likely I'm correct in the assumption my fuel pump may be going out and if so, what does it typically run to have it replaced?
It starts when the key is turned on, but before the engine is started. It does not change pitch once engine is running, just a low, constant hum.
If I turn the key on and not start the engine, it hums for a bit then abruptly shuts off. The source of the sound seems to be right at the canister filter directly below the drivers position, near the frame rail.
Based on this, is it likely I'm correct in the assumption my fuel pump may be going out and if so, what does it typically run to have it replaced?
Thread Starter
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Cross-Country
Joined: Jul 2005
Posts: 58
Likes: 1
Well I took my truck into the garage I use that I trust. Told them what I was hearing and my suspicions.
Few hours later they had it fixed, for now.
Seems the bushing that the cab is mounted on are failing, the cab dropped low enough one of the fuel lines was rubbing against the cab and creating the hum.
They secured the fuel line where it doesn't rub anymore and the hum his gone.
They said to replace the bushings for the cab runs about 1K.
Their fix only cost $127.00.
I'm happy.
Thanks to all that took the time to read and advise me.
Few hours later they had it fixed, for now.
Seems the bushing that the cab is mounted on are failing, the cab dropped low enough one of the fuel lines was rubbing against the cab and creating the hum.
They secured the fuel line where it doesn't rub anymore and the hum his gone.
They said to replace the bushings for the cab runs about 1K.
Their fix only cost $127.00.
I'm happy.
Thanks to all that took the time to read and advise me.
Laughing Gas
Joined: Mar 2016
Posts: 1,086
Likes: 466
From: Tennessee
Oh yeah, the awesome Ford Cab bushings. Get some S&B silicone bushings and be done with that mess for the life of the vehicle.
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Cross-Country
Joined: Jul 2005
Posts: 58
Likes: 1
Must profess ignorance and can prove that if needed, what are the advantages of the S&B over factory if I'm keeping the truck for maybe six more years?
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Laughing Gas
Joined: Mar 2016
Posts: 1,086
Likes: 466
From: Tennessee
The OEM bushings are made of foam while the S&B are made of Silicone. If you are lucky the OEM bushings may last 5 years, while the S&B bushings will last 30 years. I have seen OEM bushings completely shot after 2 years.
FTE Legend
Joined: Mar 2017
Posts: 31,976
Likes: 9,200
From: Western NY
I must be lucky, or maybe the crap Ziebart done along with the Carwell oil treatment each year, because I'm still rocking my factory body bushings... must be all that southern heat destroying those that you mentioned.
Yep, S&B bushings will go in at some point in time...
Yep, S&B bushings will go in at some point in time...
Laughing Gas
Joined: Mar 2016
Posts: 1,086
Likes: 466
From: Tennessee
I must be lucky, or maybe the crap Ziebart done along with the Carwell oil treatment each year, because I'm still rocking my factory body bushings... must be all that southern heat destroying those that you mentioned.
Yep, S&B bushings will go in at some point in time...
Yep, S&B bushings will go in at some point in time...
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