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1966burb · 01-31-2021, 05:45 PM

My 2001 Tahoe, 5.3 developed a fan belt squealing noise. Sprayed some 409 cleaner on the belt as it was rotating and noise went away for a few seconds and then returned. Should be a easy fix. Replace the belt. Removed the belt and cleaned all the pulleys with a brass brush and brake kleen, installed a new NAPA quality fan belt. Started it up. SAME NOISE!! Sprayed with 409 and noise goes away for a few seconds and returns. Any ideas?

01-31-2021, 05:45 PM	#1
1966burb Registered User Join Date: Jul 2013 Location: Maltby WA Posts: 435	2001 TAHOE fan belt noise My 2001 Tahoe, 5.3 developed a fan belt squealing noise. Sprayed some 409 cleaner on the belt as it was rotating and noise went away for a few seconds and then returned. Should be a easy fix. Replace the belt. Removed the belt and cleaned all the pulleys with a brass brush and brake kleen, installed a new NAPA quality fan belt. Started it up. SAME NOISE!! Sprayed with 409 and noise goes away for a few seconds and returns. Any ideas?