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Clunking noise (yet another thread)

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Old Apr 20, 2004 | 09:52 PM
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Question Clunking noise (yet another thread)

Hello everyone, I'm a new user and have found this site to be amazing. I have been looking at some of the other threads relative to strange noises but haven't found one similar to the noise I'm getting so I thought I would post it.

Everytime I start my 2004 F-250 CC Lariat I get a clunk in the front passenger side. Sounds almost identical to a locking hub. It happens about 30 seconds after starting and regardless of whether I'm at idle or pulling out of the parking spot.

Anybody experience something similar. I'm not too worried but certainly woud hate to let something go that would cause more problems.

On a side note, anyone know how to disable the panic button on the remote (it's gone off twice on me accidentally and I can't stand it. I don't really expect to ever need it)
 
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Old Apr 20, 2004 | 09:58 PM
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Most likley, it's your ac blend door, when the motor is started a vacuum pulls the door shut, kinda makes a thud sound.

Cant' help ya on the remote
 
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Old Apr 20, 2004 | 10:25 PM
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Yeti hit that one on the head! A/C door is probably the culpret not to be concerned.

On the remote can't help, but at least you don't have a horn that goes off at will!
 
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Old Apr 20, 2004 | 10:36 PM
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Thanks for the help, its definitely a good start. I'll leave it set on max a/c tomorrow and see what happens. Seems a little too loud for that, but certainly makes sense.
 
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Old Apr 20, 2004 | 11:00 PM
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Mine happens every 20 seconds or so, and I have the heater on...
 
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Old Apr 20, 2004 | 11:59 PM
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Crusin, that's probably your A/C compressor. What position do you have your HVAC controls at when it does it (A/C, defrost, face, bi-level)?? Mine does it every 15 to 20 seconds with an audible click, and I can barely feel it through the pedals & floorboard. Ford says it's OK to cycle like that. I've got 45k and I haven't had a failure, yet.
 
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Old Apr 21, 2004 | 07:22 AM
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Fordman, I know the thud you are talking about, it sounds like the thud you get when somthing hits the floor on the underside. My 02 SC 250 does the same thing, but it does not do it all the time, only does it somtimes when you first start the truck, I have been trying to figure it out for a while now. Let us know if you find anything out.
 
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Old Apr 21, 2004 | 09:08 AM
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Mine does it after starting, warm and cold, does it every 20 seconds while idleing, the exact clunk being described. I've got it at heat, low fan, bi-level. Definatly not a click, sounds like someone kicking the floorboard.
 
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Old Apr 21, 2004 | 10:55 AM
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I have the exact same noise but I also had the noise in my 98 chevy. I think that A/C blend door idea is probably it. I think my thud only started again after using the A/C for the first time this spring.
 
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Old Apr 21, 2004 | 12:42 PM
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Why must it keep opening and closing?
 
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Old Apr 21, 2004 | 02:10 PM
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My 2004 does the same thing
 
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Old Apr 21, 2004 | 05:46 PM
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Yeti, you were right that was it, good call.
 
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Old Apr 21, 2004 | 06:20 PM
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Blend door...

Edmo
 
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Old Apr 21, 2004 | 08:24 PM
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I have a 2001 cc 4x4 it makes the same noise glad to finally find out what it is I thought it was a hub also.
 
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Old Apr 21, 2004 | 09:08 PM
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Originally Posted by FordMan1979
Yeti, you were right that was it, good call.

Cool, glad it was that and not something bad.
 
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