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I'm wheezing

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Old Oct 31, 2013 | 12:37 PM
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I'm wheezing

After pulling my fifth wheel, I will unhook and the truck sits. The next morning, the truck will sound like it is wheezing for about a minute or so... I high pitched whine sorta. But only on the cooler mornings, after towing.

Thoughts on this? Can't really take it to the dealer yet because its too sporadic.
 
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Old Oct 31, 2013 | 12:47 PM
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Use your smart phone, if you have one, to capture the noise when it is happening. Where does the 'wheeze' sound like it is coming from??
 
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Old Oct 31, 2013 | 12:48 PM
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Good idea. On the other side of the firewall directly in front of the driver's seat, down low... if that makes sense.
 
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Old Oct 31, 2013 | 01:39 PM
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The turbo making the "hooting" noise? Hear it better if you stick your head in the fender well?
 
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Old Oct 31, 2013 | 01:40 PM
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Originally Posted by 2ndStroke
The turbo making the "hooting" noise? Hear it better if you stick your head in the fender well?
I'll check that next time it happens also. Right now it was observed from inside the cab, and from standing next to the driver side fender.
 
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Old Oct 31, 2013 | 01:43 PM
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Check out this video, mine does the same thing when it's cold.

 
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Old Oct 31, 2013 | 01:49 PM
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2ndstroke. Sounds like ya doing some woodworking with a tablesaw. Ugh.
 
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Old Oct 31, 2013 | 01:57 PM
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That is what it sounds like... but consistent... yours appeared to be starting and stopping. Was there a cause, or you just live with it?
 
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Old Oct 31, 2013 | 01:59 PM
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Originally Posted by Hdslider
2ndstroke. Sounds like ya doing some woodworking with a tablesaw. Ugh.
That was actually Tom's truck, mine isn't quite as bad, just humms or "hoots". Been doing it for over a year now, so I'm not too worried myself. I agree though, don't sound nice.

Here's Tom's full thread, hopefully this helps the op..

https://www.ford-trucks.com/forums/9...old-start.html
 
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Old Oct 31, 2013 | 02:02 PM
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Originally Posted by BCM
That is what it sounds like... but consistent... yours appeared to be starting and stopping. Was there a cause, or you just live with it?
I can see on my mini maxx that when it's "hooting" the turbo is around 1 or 2 psi, I think it's just trying to warm up. Soon as a rev it up, it goes away. And yes, I'm just living with it personally, been doing it so long, I don't really notice it anymore.

If the truck is warmed up and I start, no noise...
 
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Old Oct 31, 2013 | 02:23 PM
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Originally Posted by 2ndStroke
That was actually Tom's truck, mine isn't quite as bad, just humms or "hoots". Been doing it for over a year now, so I'm not too worried myself. I agree though, don't sound nice.

Here's Tom's full thread, hopefully this helps the op..

https://www.ford-trucks.com/forums/9...old-start.html
Thats an awesome thread. Lots of good stuff in there. But, in the end game, looks like its, um, normal. Thanks, 2nd. And everyone else.
 
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Old Oct 31, 2013 | 03:29 PM
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My turbo owl only wakes up in cool weather, too.
Mine has only sounded like a small table saw once or twice and it didn't last too long.
Mine also spools up then clunks and then quickly becomes silent after a noise I can't convert into words but too low to capture on a camera mic.

Yeah it's "normal."
 
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Old Nov 1, 2013 | 12:34 AM
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Probably not related, but my son has a Hyundai Elantra sedan that ran nice and quiet, had a shop replace the timing belt and when we got it back it made a very similar sound, at a certain RPM just above idle, it would get bad, just like this sound. I figured they did something wrong with the timing belt, but it turns out there was too much tension on the alternator belt, and there was a resonance vibration on the belt. Once they backed off on the belt tension all was well and quiet again.
 
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Old Nov 1, 2013 | 09:17 AM
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Sounds like an F150 4.6L with a bad IAC valve! hhhmmmm. with cold weather coming on, I wonder how many more of ours will show it's grumpy side on cold mornings?
 
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Old Nov 1, 2013 | 09:32 AM
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Originally Posted by golfmedik
Sounds like an F150 4.6L with a bad IAC valve! hhhmmmm. with cold weather coming on, I wonder how many more of ours will show it's grumpy side on cold mornings?
I wish I had a dime for everyone I replaced on F-150's, Crown vics, Grand marquis. IAC boy some would really talk. Lmbo.
 
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