Question about 2001 GMC Yukon
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Posted on Jan 02, 2017
the tensioner for the big belt is on passenger side the one for the ac is on the bottom.autozone will have a belt diagram this will help.
Posted on Feb 19, 2009
could be the alternator, water pump
take the belt and spin all the pulleys and listen for noise and make sure they turn smoothly
another trick is to take a can of wd40 or equivalent and spray the bearings 1 at a time till the noise goes away or quiets down
Posted on May 16, 2009
There is a TSB (Technical Service Bulletin) for this problem:
Engine - Accessory Drive Belt Noise Diagnostics/Tool
This particular vehicle had an issue with pulley alignment, particularly the power steering pulley. Take a look at the shaft the pulley is pressed onto. If the end of the shaft isnt flush with the pulley, it is out of line and will cause a squeal.
It is recommended that you discuss this TSB with your dealer (not local mechanic).
I hope this helps.
Posted on May 19, 2010
SOURCE: 2001 yukon with 5.3 vortec.
Below is a diagram for the belt routing on your Yukon. The belt tensioner is the top left pulley as you look at it from the front of the truck.
Posted on Feb 18, 2011
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