Knocking Noise?? - Ford Powerstroke Diesel Forum

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post #1 of 11 Old 10-25-2010, 08:04 PM Thread Starter
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Knocking Noise??

I have heard a knocking sound about 2 different times when i was at idle in gear or parked sounds like the engine compartment inside the truck but when i pop the hood all i hear is normal motor sound! The noise sounds like someone knocking on the dash with a knuckle not metal i even tried the heat controls thought it may be a stuck vent door cyl. the sound stays pretty steady nothing i did made it change just comes and goes! Anyone else run into this sound ???
Chris
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post #2 of 11 Old 10-27-2010, 07:59 AM Thread Starter
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Nobody had this happen? I was driving this morning and heard it again sounds like its coming from the bottom of the dash near the floor just a slight tap starting to get on my nerves! guess its time to keep the radio up!
Chris
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post #3 of 11 Old 10-27-2010, 08:12 AM
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wrong topic

2003 F150 Lightning- Whipple 3.4l 659rwhp 711rwtq @18psi on 93

2008 F250 FX4- afe stage II, 5" Flo Pro, Elite- egr delete/wastegate/4" downpipe/cfm+/ported fuel rails
Innovative XRace-12.81@103.9; H&S Hot Damn- 13.13 @ 101.4 556 rwhp (Traded In)

2011 F150 King Ranch- Custom Status Air Suspension, 3-link (lays frame)

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post #4 of 11 Old 10-28-2010, 05:30 AM
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Does it sound like the passenger side lower part of the dash? It could be the blend door. I've heard alot of people complain about the door making noise.

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post #5 of 11 Old 10-28-2010, 06:04 AM Thread Starter
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Does it sound like the passenger side lower part of the dash? It could be the blend door. I've heard alot of people complain about the door making noise.
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Sort of it seems down low and like i said does not sound like metal would this happen with the heat/ac off ?
Chris
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post #6 of 11 Old 10-29-2010, 01:16 PM
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Originally Posted by Stroke4Fun View Post
Nobody had this happen? I was driving this morning and heard it again sounds like its coming from the bottom of the dash near the floor just a slight tap starting to get on my nerves! guess its time to keep the radio up!
Chris
My truck does this too. I am bringing the truck in next week to have them repair the 'blend door' issue. There have been enough folks dealing with this issue, so Ford SD mechanics ought to be familiar with this by now.
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post #7 of 11 Old 10-29-2010, 02:32 PM Thread Starter
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Let me know how that all works out for you and see if you can find out what the issue is like a certain part!
Chris
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post #8 of 11 Old 10-29-2010, 04:57 PM
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I have the same noise. I can't wait to hear what it is, it has been driving me crazy.
Scott
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post #9 of 11 Old 11-03-2010, 03:10 PM
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Mine is really starting to do it now; whether the AC is on or off, it will reach a point where the noise will be present much of the time. Instead of putting the truck in this week for warranty work, I am going to wait for a couple more weeks because there are a couple of other issues I am keeping an eye on; such as the rear cab upper brake-light allows water to leak into the cab whenever it rains; so they may be replacing my roof-liner as well. Plus there are some other noises and creaks I am hearing at highway speeds.
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post #10 of 11 Old 11-03-2010, 05:59 PM Thread Starter
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My cab light leaked also i siliconed it up fixed that but they changed my powerslider twice they leak in the corners of the slide probably still leaks!
Chris
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