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Old 12-29-2020, 05:01 AM   #1
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Join Date: Feb 2016
Default 242 turbo whining sound

Unsure of what it is exactly but I am getting a whining sound when I begin to boost and when Iím at a higher speed and Itís coasting,sometimes. The engine also stumbles a little bit as Iím driving and itís warming up still. The whine sound is kind of like a whir sound. Could this be bad turbo bearings?
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Old 12-29-2020, 11:00 AM   #2
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Join Date: Apr 2003
Location: La Porte TX

Hows that shaft play? A lil bit of up and down is ok, any in and out is no bueno. What you may be describing is the wheels hitting the compressor housing, no good :(
-78 242 tic, a kyotefab/willettrun joint
-83 245 tic, daily in progress
-14 F150 FX4 3.5 EcoBeast (Wife's)
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Old 12-29-2020, 12:45 PM   #3
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Join Date: Jun 2002
Location: S NJ, a suburb of Phila.

With a cold engine as kyote suggests. You can remove the intake pipe on the front of the turbo and check for excessive shaft play. As turbos wear it's common to get a sonic imbalance which translates into noise. I had one that sounded like a siren and it lasted another three years or so before I had to replace the turbo. If it's hitting the housing when you check it. The turbo is done.
1982 242 turbo. 338k miles. MVP coilovers and 3" exhaust. Flowed 405 with a V15. Cossie turbine housing with upgraded compressor housing. 90+, IPD remote oil filter. Some other goodness, too. Been lots of fun over 25 years. Restored in 2k. Now ready for a 2nd restoration.

1993 245 Classic, 430k miles, enem V15. IPD bars and chassis braces. Simons sport exhaust from Scandix. sbabbs ezk chip. Been a good road warrior. Genuine Volvo rebuilt leaky M47.
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