Air Filter/breather thumping when cold - Page 2 - Ford Truck Enthusiasts Forums



6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

Air Filter/breather thumping when cold

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  #16  
Old 04-02-2010, 08:12 AM
forddieseldoc forddieseldoc is offline
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you might want check the air filter, their was a message about snow that becomes packed into the air cleaner. if this has happend it could have damaged the filter. they make a deflector to install in the housing, and if you plow snow you should use a winter grill. this will prevent it from happening again.
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  #17  
Old 04-02-2010, 10:02 AM
Jake4809 Jake4809 is offline
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The noise in my 08 seems to occur only when the A/C is on. Might be the compressor engagement thump forddieseldoc mentioned. Thanks
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  #18  
Old 04-14-2013, 07:57 PM
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GHeTTo JOe GHeTTo JOe is offline
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ive got the compressor clunk when it engages, and have read into it some but not much talk about it other than the tsb.
my question is this hard on the truck to not fix, is it just the sound that is the problem or will it take out the tensioner or compressor if let be?
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Old 05-01-2013, 08:39 PM
forddieseldoc forddieseldoc is offline
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I don't think that it will hurt the drive belt, tensioner or compressor. I have not seen many a/c system failures. I think it's the freon flow through the accumulator when the compressor engages. Not sure on that though.
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  #20  
Old 05-02-2013, 04:02 AM
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fordtruggy fordtruggy is offline
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Blend door actuator? I think every single one ford made for 08-10+ is bad and will start clicking. Mine does. Gues that's more of a clicking then thumping...
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  #21  
Old 05-02-2013, 05:00 AM
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Originally Posted by fordtruggy View Post
Blend door actuator? I think every single one ford made for 08-10+ is bad and will start clicking. Mine does. Gues that's more of a clicking then thumping...
More like a typewriter behind the dash.
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  #22  
Old 05-02-2013, 10:36 AM
parkland parkland is offline
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Originally Posted by ronnie jr View Post
i just fixed a 2006 f250 with the same noise it was a broker roker on #8 exaust
These guys are speaking of a "thump"...
The rockers make a tapping or knocking noise when worn out or damaged.

What did that cost you, and did you do all of them, or just the #8 cylinder?
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42l, 64l, acceleration, air, breather, coming, engine, filter, ford, gauge, noise, popping, pops, restriction, thump

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