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post #1 of 14 Old 01-28-2009, 08:28 PM Thread Starter
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Turbo is squealing

My turbo was squealing and the ford dealer told me it was about to go out so i replaced the turbo today and started up the truck and got it up to about 2500 rpm and it started squealing again. As soon as you ease off a little on the accelerator it stops. it sounds like a motor that has bad bearings. Is it possible it's not getting enough oil? Weak oil pump? If i'm pulling a loaded trailer it squeals significantly more.


08 F250 6.4 Lariat
MiniMaxx
4" AFE Downpipe back Exhaust
S&B intake
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post #2 of 14 Old 01-28-2009, 09:35 PM
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Originally Posted by power4l View Post
My turbo was squealing and the ford dealer told me it was about to go out so i replaced the turbo today and started up the truck and got it up to about 2500 rpm and it started squealing again. As soon as you ease off a little on the accelerator it stops. it sounds like a motor that has bad bearings. Is it possible it's not getting enough oil? Weak oil pump? If i'm pulling a loaded trailer it squeals significantly more.
Have you checked to see if your oil return tube is actually oiling the turbo? Do you usually let your truck idle before you shut it off?

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post #3 of 14 Old 01-29-2009, 03:43 AM
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Are you sure it's the turbo? I've had leaking connector boots squeal like a pig, I'd check all piping and I/C connections and condition of the boots.

Russ
Late '99 F-350 7.3l 6sp 2wd aftermarket dually kit 255,000mi STOCK
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post #4 of 14 Old 01-29-2009, 06:31 AM Thread Starter
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where is the oil return tube? I usually don't let it idle more than a few seconds before shutting it off.


08 F250 6.4 Lariat
MiniMaxx
4" AFE Downpipe back Exhaust
S&B intake
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post #5 of 14 Old 01-29-2009, 07:05 AM
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Quote:
Originally Posted by power4l View Post
where is the oil return tube? I usually don't let it idle more than a few seconds before shutting it off.
you should always idle your PSD for a few minutes after towing or hard driving to allow the turbo to cool down so it doesn't cook the oil in it. extends the life of the turbo, as well as the oil.

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post #6 of 14 Old 01-29-2009, 07:38 AM
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Quote:
Originally Posted by power4l View Post
where is the oil return tube? I usually don't let it idle more than a few seconds before shutting it off.
Check Deeslfxr's advice 1st with the I/C boots. I know he's not a forums tech, but he seems to know his stuff & has useful tips & info.

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post #7 of 14 Old 01-29-2009, 07:28 PM
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Quote:
Originally Posted by power4l View Post
where is the oil return tube? I usually don't let it idle more than a few seconds before shutting it off.
There is no oil feed or return tubes on these. They feed/return oil internally through the turbo mounting pedestal.

Russ
Late '99 F-350 7.3l 6sp 2wd aftermarket dually kit 255,000mi STOCK
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post #8 of 14 Old 01-29-2009, 07:38 PM
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Originally Posted by RadarRider View Post
Check Deeslfxr's advice 1st with the I/C boots. I know he's not a forums tech, but he seems to know his stuff & has useful tips & info.
Stoppit, you're making me blush! Seriously, thanks for the compliment!

Russ
Late '99 F-350 7.3l 6sp 2wd aftermarket dually kit 255,000mi STOCK
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post #9 of 14 Old 01-29-2009, 08:05 PM
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Stoppit, you're making me blush! Seriously, thanks for the compliment!
No problem, man! Most of the info you've posted on other threads is really helpful & accurate! Stop blushing or I'll have to ! LOL

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post #10 of 14 Old 01-29-2009, 08:10 PM
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my dads v10 and my trucks t\c made a rele loud whining noise when the rpms got up i thought it was my turbo right before they went out most likeley not your problem but just throwing it out there
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