Water Pump bearings.
Idler bearings.
Pull the serpentine belt, fire it up and see if it goes away, if so its a sub-system. if not, its internal and you should call me and DO NOT run it any longer :-)
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Jake Raby/www.flat6innovations.com
IMS Solution/ Faultless Tool Inventor
US Patent 8,992,089 &
US Patent 9,416,697
Developer of The IMS Retrofit Procedure- M96/ M97 Specialist
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