Thread: Serpentine belt chirping noise
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Old 07-12-2007, 04:01 PM
TMAllison TMAllison is offline
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Join Date: Feb 2004
Location: Walnut Creek, CA & 1,150 miles S of Key West
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Confirm it is not caused by low fluid level of the PS pump. Assuming not, it sounds like you've got a bearing somewhere that only acts up when tension/torque is applied by the belt turning against it.

You may need to use your mech stethoscope (18" screwdriver or wood dowel) and carefully touch it down on each accessory in order to listen to their bearings while engine is running.
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N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)
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