Cold Start Up Noise
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Junior User
Joined: Oct 2010
Posts: 51
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From: Vancouver, BC, Canada
Cold Start Up Noise
Hey guys,
I know this has been discussed before, the turbo cold start up noise, but the sound I am getting seems to be coming from under the truck, on the passanger side, perhaps at the start of the exhaust system or very close to the engine. It starts of fairly loud with a pewwwww........ pewwwww sounds then gradually gets lower with the same sound and it only lasts for less than a minute. The truck runs great other than this little sound.
Any thoughts?
I know this has been discussed before, the turbo cold start up noise, but the sound I am getting seems to be coming from under the truck, on the passanger side, perhaps at the start of the exhaust system or very close to the engine. It starts of fairly loud with a pewwwww........ pewwwww sounds then gradually gets lower with the same sound and it only lasts for less than a minute. The truck runs great other than this little sound.
Any thoughts?
Posting Guru
Joined: Oct 2010
Posts: 1,777
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Hey guys,
I know this has been discussed before, the turbo cold start up noise, but the sound I am getting seems to be coming from under the truck, on the passanger side, perhaps at the start of the exhaust system or very close to the engine. It starts of fairly loud with a pewwwww........ pewwwww sounds then gradually gets lower with the same sound and it only lasts for less than a minute. The truck runs great other than this little sound.
Any thoughts?
I know this has been discussed before, the turbo cold start up noise, but the sound I am getting seems to be coming from under the truck, on the passanger side, perhaps at the start of the exhaust system or very close to the engine. It starts of fairly loud with a pewwwww........ pewwwww sounds then gradually gets lower with the same sound and it only lasts for less than a minute. The truck runs great other than this little sound.
Any thoughts?
Junior User
Joined: Nov 2010
Posts: 78
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From: Illinois
I have had my truck for a week now. I can't keep up with the sounds it makes on a cold start first thing in the morning. One for sure, is the turbo the first couple of minutes of running.
Still Smiling
Still Smiling
Post Fiend
Joined: Jan 2009
Posts: 6,521
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From: Greenwood, SC
If you go here: https://www.ford-trucks.com/forums/9...ch-folder.html
And download the Coffee Table book and the 6.7 Overview you can find a picture cut-a-way of the DEF can on the exhaust system. It has a screw looking agitator and I wonder if it spins because I hear the same sound and I think that it has something to do with the DEF system. I don't know for sure though....
It's page 85 and 86 in the Overview book. I can't tell if the thing twists or not, it might just be stationary and we are hearing the pumps or something else.
And download the Coffee Table book and the 6.7 Overview you can find a picture cut-a-way of the DEF can on the exhaust system. It has a screw looking agitator and I wonder if it spins because I hear the same sound and I think that it has something to do with the DEF system. I don't know for sure though....
It's page 85 and 86 in the Overview book. I can't tell if the thing twists or not, it might just be stationary and we are hearing the pumps or something else.
Last edited by ruschejj; Jan 11, 2011 at 02:58 PM. Reason: Overview Book
Senior User
Joined: Nov 2008
Posts: 185
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From: Houston
My truck is only two weeks old and just started a whining sound. This started a couple days ago. The sound oscillates from a high pitch to a lower pitch whine. This only happens on a cold start first thing in the morning.
The weather has been colder (lows in the 20'sF the last couple days compared to when I first brought the truck home. After a couple minutes, no whining sounds.
The weather has been colder (lows in the 20'sF the last couple days compared to when I first brought the truck home. After a couple minutes, no whining sounds.
Tuned
Joined: Dec 2010
Posts: 348
Likes: 14
From: Everett. Washington
Mine has been doing that from day one. It does oscillate and slowly goes away. Kinda a weird sound cant quite describe it. Like a liquid going through a restriction. Or say a water hose that you compress the tube and then slowly let up.
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Joined: Mar 2010
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From: South Texas
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Junior User
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From: Vancouver, BC, Canada
Not sure if it is a turbo whine as the turbo is on top (is it not?) and the sound is coming from under the engine along the exhaust piping/DPF area but seems to be closer to the engine
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Junior User
Joined: Oct 2010
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From: Vancouver, BC, Canada
This sound only seems to last for less than a minute
Posting Guru
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It sounds like most of the trucks delivered in the past couple of months have a similar noises. Hopefully, that is a good thing!
Senior User
Joined: Nov 2008
Posts: 185
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From: Houston
Same here. I was thinking it was a fuel pump initially, but going the opposite direction, engine to fuel tank. the oscillating high to low whine sound is strange to me.
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I think we are all talking about the same turbo noise. If I go to the exhaust pipes while it is doing this, it sounds like it is coming out of there as well. It lasts 1 to 2 minutes and goes lower in pitch. Then another minute or so, it is gone.
Junior User
Joined: Jan 2011
Posts: 67
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From: Florida
Hey guys,
I know this has been discussed before, the turbo cold start up noise, but the sound I am getting seems to be coming from under the truck, on the passanger side, perhaps at the start of the exhaust system or very close to the engine. It starts of fairly loud with a pewwwww........ pewwwww sounds then gradually gets lower with the same sound and it only lasts for less than a minute. The truck runs great other than this little sound.
Any thoughts?
I know this has been discussed before, the turbo cold start up noise, but the sound I am getting seems to be coming from under the truck, on the passanger side, perhaps at the start of the exhaust system or very close to the engine. It starts of fairly loud with a pewwwww........ pewwwww sounds then gradually gets lower with the same sound and it only lasts for less than a minute. The truck runs great other than this little sound.
Any thoughts?
"My F-250 SRW has about 2200 miles on it, but I've always heard what I am about to describe. I bought my truck with 22 miles on it. On cold mornings, like this morning (28 degrees), and only at start up, mine makes an almost beeping type of noise, with the sounds fading to nothing. It reminds me of a tractor's reverse beeping or humming sound. It does it maybe 5 or 6 times, this beeping type of sound, then stops. I don't hear this on warmer mornings or afternoons after it's been sitting for several hours. I read the posts about the turbo replacement, and also listened to the video. Mine isn't like that at all. I even tried giving it some throttle when it does it on these cold morning start ups, but it still goes away after 5 or 6 beeps or short hums. I don't notice any of it while driving, only the normal low almost quiet turbo spin-up noise when I goose it or am pulling a load."
Sorry, I wish I knew how to just link to this post.
Senior User
Joined: Nov 2008
Posts: 185
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From: Houston
I recorded a minute of audio on my start up this morning. It was 30F. I can email the audio from my BlackBerry if anyone is that curious and probably could even post it here if I knew how.
EDIT: I made a YouTube video capturing the audio of the cold start. I added a picture slide show trying not to be a blank screen of the audio track. Anyway, here is the link to the YouTube video: http://www.youtube.com/watch?v=waWpkUQG5C0
EDIT: I made a YouTube video capturing the audio of the cold start. I added a picture slide show trying not to be a blank screen of the audio track. Anyway, here is the link to the YouTube video: http://www.youtube.com/watch?v=waWpkUQG5C0