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How do you replace a serpentine belt for a 2003 Yukon XL

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Not Hard at all! You are going to have to Locate the Tensioner (Should be to the Inside of the A/C Compressor and Looks like a Large Wheel with a Arm in the Back going Down to a Smaller Wheel Underneath the Belt Pushing it up) There is a Nut in the Middle of the Large Wheel. Get a Wratchet and Socket and Turn this. It will Lower the Smaller Wheel and let the Tension Off of the Belt, While at that Point Remove the Belt from the Small wheel and Slowly Release the Tensioner. Reverse to Put Back.

Posted on Jan 03, 2009

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