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Clunk and jump/diesel sound (two seperate issues)

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Old 07-01-2015, 05:28 PM
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Clunk and jump/diesel sound (two seperate issues)

Got a 2010 f150 I just bought about 6 months ago and I feel like it had the same small jump and clunk when I applied the brakes basically almost at a complete stop but still slowly rolling but I think it's gotten worse. I keep reading about the clunk from other forums so I didn't want this to be lumped in with them because I didn't know if the "jump" was also part of the "clunk" so if anyone has had that issue before please give me input.

So also (apparently to me and my friend only) my truck sounds like a diesel truck and I want it to stop because it's bothering me.
 
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Old 07-01-2015, 07:32 PM
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Clunk and jump/diesel sound (two seperate issues)

If you have a 5.4 3v then that's kinda a normal sound to them. That's the cam phasers.. If it sounds absolutely horrible diesel sound and like the engine doesn't want to run then your phasers are fried. Only way to fix that is to change all the timing components to new, and even then the noise may come back. Ticking noises could also just be your VCT solenoids opening and closing..

For the brakes I can't help you there sorry.
 
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Old 07-01-2015, 07:43 PM
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The 4.6 3 valve also had cam phasers.

I would recommend you have your brake system inspected by a professional.
 
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Old 07-01-2015, 09:35 PM
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Yeah it's the 5.4 so that makes me feel better knowing that. Thanks for the quick response.
 
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Old 07-01-2015, 11:48 PM
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Clunk and jump/diesel sound (two seperate issues)

Originally Posted by glc
The 4.6 3 valve also had cam phasers.

I would recommend you have your brake system inspected by a professional.
Yep don't know how that slipped my mind. Thanks GLC
 
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Old 07-02-2015, 10:03 AM
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Originally Posted by Shaqatebabies
Got a 2010 f150 I just bought about 6 months ago and I feel like it had the same small jump and clunk when I applied the brakes basically almost at a complete stop but still slowly rolling but I think it's gotten worse...
Welcome to the forum, Shaqatebabies. I'd get this in front of your local Ford Dealership so they can check out your brakes and the sound you're hearing. How many miles are on the truck currently? Come back and tell us what you find out.

Crystal
 
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Old 07-02-2015, 10:52 AM
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The truck has 53.5k miles on it
 
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Old 07-02-2015, 11:39 AM
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Originally Posted by Shaqatebabies
The truck has 53.5k miles on it
Thanks for the quick reply, Shaqatebabies! If you decide to get your dealership involved, give me a shout. I'll be able to step in and assist once they've looked things over.

Crystal
 
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Old 07-02-2015, 06:24 PM
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if you have the two part drive shaft, the slip yoke is sticking. see my post #12 in this thread:

https://www.f150online.com/forums/ot...line-lube.html

try heavier oil to quiet the valvetrain. I use castrol 0w40 for a silent engine. 103k miles. don't let anyone tell you this engine was designed for 0w20. It was first released in Australia (5.4l 3valve) with a 5w30, 10w30 or 10w40 oil recommendation. The engine design hasn't changed since then. EPA fuel economy requirements have.
 



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