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How do you replace the serpentine belt tensioner on a 1990 Buick Park Avenue with AC?
Wiki User
∙ 16y ago
First, you make sure you have a diagram of the path of the belt! You can get it from a book, the inside of the hood or make one yourself. Then remove the belt. The nut you used to relieve the tension to remove the belt should remove the tensioner, itself. NOTICE! Some auto parts stores have TWO very similar tensioner pulleys! On my first try the cupped washer on the tensioner bolt rubbed against the radial support ribs on the pulley itself destroying not only the pulley but the belt, also! Be SURE that the new pulley turns freely when the bolt is fully tightened!
Wiki User
∙ 16y ago
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