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940 Engine Whine

posted by  Big Harry on  Thu Nov 6 04:54 CST 2008
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last visit: Sun Sep 21 11:06 CST 2014
[RELATED]

Hello Jack,

Serpentine belts that are not tensioned correctly make the noise that you describe. When was the last time you changed the belt? I would check/replace the timing belt tensioner just to make sure. Although I do not suspect the cam bearings, you could pull the valve cover and listen to the individual cam bearings while the engine is idling. Use a long screwdriver for a stethoscope if you do not have one handy.

Regards,
--
Will Dallas, www.willdallas.us, www.willdallas.org, www.willdallas.com, www.dallasprecision.com 86 245 DL 222K miles, 93 940 260K miles, 88 765 GLE 152K miles, 88 780 246K miles






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