Possible source for engine noise...thoughts? - Ford Powerstroke Diesel Forum
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Old 01-14-2014, 08:23 AM
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Possible source for engine noise...thoughts?

For those who didn't read my earlier threads, I have an RPM/throttle related engine noise that is a steady/rhythmic ticking that increases or decreases with RPM. It is very regular, and I just don't think it's the typewriter noise. It has always sounded like either an exhaust leak or a noise injector, and it is related to throttle position and does not occur at idle. The truck seems to just run more rough when the noise is there, and I don't feel I have all the power I should. I've been all over/under the truck and had no luck finding anything that resembles an exhaust leak indicator.

Over the last several weeks, I've noticed the fuel pump getting louder. I have checked the water separator multiple times with nothing but pristine diesel. I've also on a few occasions noticed a strange whining/squealing sound from the driver's side of the motor when turning the key on with the engine off.

So last night I cycled the key to the on position with the hood up, and I heard the fuel pump kick on. I then heard the irregular squealing noise coming from the engine mounted fuel filter. It lasted for 30 seconds or so as the system was primed and then stopped. I tried it again later, and when it was squealing, I "jiggled" the engine mounted fuel filter a bit, and it promptly stopped squealing.

This morning, on the way to work the truck was much quieter. The noise was still there, but barely audible. However, about 5 miles into the drive, I was stopped at a light in traffic, and I thought I could faintly hear the squeal from the engine/filter, and upon driving a bit more, the noise became louder again.

What would cause the engine mounted filter to squeal like that? It almost sounds like a squeal you get from your home faucet when the tap is only part-way open. Is it possible that I have a leak that is somehow drawing air into the fuel system and causing noisy injectors? Or possibly a restriction? And yes, every time I have checked the diesel/water separator, I have fully tightened the valve. Should I just go ahead and replace the fuel filters with only 2200 miles on the truck?

Any thoughts are appreciated.

--nathan
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Old 01-14-2014, 09:24 AM
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With only 2200 miles, if it were mine, it would be sitting back at the dealer for them to figure out. Just my opinion.
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Old 01-14-2014, 09:46 AM
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I took it back to the dealer shortly after it all began. They had their mechanic drive it, and he said he could hear it, but there were no codes, the self-report was good, and there were no TSB's of that nature. He called Ford who told him that some of these trucks make noises and hopefully it would go away over time.

I'm hoping to have it pinned down a bit more before I take it back in. That way I can point the guys who are supposed to know what they are doing in the right direction.

--nathan
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Old 01-14-2014, 04:33 PM
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Mine makes all types or weird noises like that has since day one makes moaning sounds and squeeking and ticking ive been deleted since 800 miles and now with over 9k on my truck and its still fine, these new diesels just have way to much stuff going into them now and the engines are so quiet you hear all the other " stuff ".
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Old 01-15-2014, 10:32 AM
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Mine die the same thing. The engine filter under hood was vibrating furiously. I took it to dealership, they had guy look at it and said they could do nothing, the manager had them go back and reseat the fuel/water seperator filter on the frame and noise stopped. No issues since. If I were you I would loosen that filter, back it all the way off if necessary and retighten to reseat it.
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Old 01-15-2014, 10:35 AM
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Lol, dealerships-no codes, no brains! What ever happened to basic troubleshooting skills with these highly qualified mechanics? If there is not a code then we as drivers must be making this crap up! Well, enough venting. Good luck!
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