Last post on Sep 04, 2013 at 3:58 PM
You are in the Buick Rendezvous
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Buick Rendezvous, SUV
#32 of 32 Re: Humming and moaning noise [ray80]
Sep 04, 2013 (3:58 pm)
I know this an old post but I recently acquired a high mileage 2003 Buick Rendezvous with the moaning rear. I changed the fluid with Royal Purple Synchromax that reduced the moan level but did not eliminate it. I did not do a flush. After about a thousand miles I then added about four ounces of limited slip differential friction modifier. After about a dozen circles in each direction the noise was gone completely. I wanted to verify the Versatrak still worked so I drove it off the road so one side was on the pavement and the other was in the grass. From a complete stop I floored the gas pedal. The Versatrak worked perfectly. I don't know how long this will last but it's working perfectly for now.