Whistle noise
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Junior User
Joined: Mar 2006
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Whistle noise
Hello everyone, I have a question & have always gotten fantastic results from everyone's input.
I have an 06 6.0 40K. All maintenance is completed on a regular basis with oil samples. Rear main seal replaces @ 1800 & bed pan seal @ 30K. No mods.
I am noticing a sharp whistle noise at startup & take off for the 1st 15 minutes or so.
It is not a belt. It does not happen all of the time, notice it when truck is just started & taking off from a stop. But then the noise goes away. I am thinking something in the turbo. Any thoughts would be appreciated.
I have an 06 6.0 40K. All maintenance is completed on a regular basis with oil samples. Rear main seal replaces @ 1800 & bed pan seal @ 30K. No mods.
I am noticing a sharp whistle noise at startup & take off for the 1st 15 minutes or so.
It is not a belt. It does not happen all of the time, notice it when truck is just started & taking off from a stop. But then the noise goes away. I am thinking something in the turbo. Any thoughts would be appreciated.
Cargo Master
Joined: Feb 2008
Posts: 2,862
Likes: 44
From: Tooele, UT
if it is aside from the normal turbo whistle then i think it's more like possible blown head gaskets. you will notice if you read around on here one of the symptoms of blown head gaskets is something that sounds like a tea kettle whistle. is it very loud when it does whistle?
Mountain Pass
Joined: May 2007
Posts: 203
Likes: 0
From: Northern Ontario, Canada
Just went through this.
Whistle is from your degas bottle overpressurizing caused from blown head gaskets. Check your degas bottle (coolant bottle) for white residue drips.
Mine was only during take off right after startup and progressed to whistling all the time under load. Bring it in, its under warrenty.
Try to see if they will install ARP head studs instead of the TTY bolts. Also, request the heads be inspected for flattness before re-assembly.
Whistle is from your degas bottle overpressurizing caused from blown head gaskets. Check your degas bottle (coolant bottle) for white residue drips.
Mine was only during take off right after startup and progressed to whistling all the time under load. Bring it in, its under warrenty.
Try to see if they will install ARP head studs instead of the TTY bolts. Also, request the heads be inspected for flattness before re-assembly.
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Junior User
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Tea kettle whistle is a perfect match. I checked the degas bottle & all around under the hood... Everything is clean as a "whistle"...lol
Seriously though head gasket does make sense, just can't seem to find any other systems to agree with that.
Thanks All...
I love this sight...........
Seriously though head gasket does make sense, just can't seem to find any other systems to agree with that.
Thanks All...
I love this sight...........
Fleet Mechanic
Joined: Oct 2007
Posts: 1,712
Likes: 18
From: Henderson, NV
Tea kettle whistle is a perfect match. I checked the degas bottle & all around under the hood... Everything is clean as a "whistle"...lol
Seriously though head gasket does make sense, just can't seem to find any other systems to agree with that.
Thanks All...
I love this sight...........
Seriously though head gasket does make sense, just can't seem to find any other systems to agree with that.
Thanks All...
I love this sight...........
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Junior User
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No aftermarket gauges & no signs of overheating. I am have some knowledge of overheating have replaced heads on other vehicles over the years. Oil is okay coolant okay. Although it is factory equipt for snow plow & trailer never plowed or pulled anything. I don't drive it everyday usually about 3 to 4 days out of the week. 90 percent highway.
Thanks again everyone I'm learning a lot
Thanks again everyone I'm learning a lot
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Pete98Cobra.. I just had ARP head studs installed.. got them from Northern Auto Parts.. (they will negotiate so shop around and find a better price as they will match)
fxbalto... My Truck still "whistles" even after ARP head studs. I think it sounds like a pressure cooker sound. It only happens on hot days at 2500 RPM under load though. Most likely for you, it is the head gaskets. BUT, I talked to the Tech today and he said it also could be the exhaust pipe comming out of the back of the turbo.. they have been known to get slight cracks and at higher RPMs under load, they could also be the problem. Its rare, but it is possible and I am going to have to bring my rig back to the dealer with my boat on it to get them to hear the sound so they can hear it too. Just looking under the engine their is no obvious exhaust leak anwhere and I do have to work the Truck pretty good to generate the sound.
We will see.
Happy with the job they did though and Truck still runs real well.
fxbalto... My Truck still "whistles" even after ARP head studs. I think it sounds like a pressure cooker sound. It only happens on hot days at 2500 RPM under load though. Most likely for you, it is the head gaskets. BUT, I talked to the Tech today and he said it also could be the exhaust pipe comming out of the back of the turbo.. they have been known to get slight cracks and at higher RPMs under load, they could also be the problem. Its rare, but it is possible and I am going to have to bring my rig back to the dealer with my boat on it to get them to hear the sound so they can hear it too. Just looking under the engine their is no obvious exhaust leak anwhere and I do have to work the Truck pretty good to generate the sound.
We will see.
Happy with the job they did though and Truck still runs real well.
Elder User
Joined: Jul 2006
Posts: 585
Likes: 4
You might want to check out these two threads and see if you can jump on the bandwagon with the rest of us that have whistling trucks:
https://www.ford-trucks.com/forums/6...ford-cant.html
https://www.ford-trucks.com/forums/6...eavy-load.html
https://www.ford-trucks.com/forums/6...ford-cant.html
https://www.ford-trucks.com/forums/6...eavy-load.html
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Thaks for all of the info. I haven't driven the truck since Monday am will probably take it again on Thursday but definetley on Friday.
You guys have ginve me so much info, also went to some other post & found a wealth of knowledge.
I think what I am going to do is just pay extra attention & see where that get's me at this point. Maybe stop up at the dealer & talk to the mech. if they will let me. He is good at least I have been happy with him. Only problem he is the only one there & he gets very busy...... maybe try another dealer in MD. Anybody have any thought on that.
Thanks again everyone......
You guys have ginve me so much info, also went to some other post & found a wealth of knowledge.
I think what I am going to do is just pay extra attention & see where that get's me at this point. Maybe stop up at the dealer & talk to the mech. if they will let me. He is good at least I have been happy with him. Only problem he is the only one there & he gets very busy...... maybe try another dealer in MD. Anybody have any thought on that.
Thanks again everyone......
Elder User
Joined: Aug 2007
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rjd75
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Oct 28, 2009 01:51 PM
