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How do you remove the just the pulley on the automatic tensioner on a 1998 Pontiac Bonneville?
Wiki User
∙ 14y ago
You can't. I have a 99 PA with the same tensioner assembly. After working on something other than that one day, I took the belt off and the pulley nut just kept turning, thus making the tensioner useless. After I got the new part, I couldn't believe the engineers designed this setup of having coolant go through the thing. Didn't make sense and I was sure it would leak after I installed it. But to my surprise, the o-rings do hold the coolant when installed right. It's not real hard to change it, just gonna pay a little for the part. Don't forget coolant.
Alternate answer: The above assembly must not be the same. The tensioner bolt holding the bearing/pulley on for the 1998 Bonneville has left-hand threads. Turn counter-clock-wise to loosen the serpentine belt, clockwise to remove the pulley. Note, I had to use something in the range of 80-100 ft/lbs to get mine off. $12 part, 15 minutes to replace, once you know it's left-hand-threaded...a detail my factory manual didn't regard as worth mentioning!
Wiki User
∙ 14y ago
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