Having problems with your 1993 Buick Regal ?
I have a 1993 Buick Regal Custom with 3.8 V6 engine. My problem is lately[past 4 or 5 months] when I run through standing water the serpentine belt comes off. It appears that all pullys are aligned properly. The belt is not stretched out. It only comes off when running through water. Thanks
Your problem is a result of weak/poor idler tensioner operation due to a weak spring in the idler tenisioner and need to be replaced
Repair Help & Product Troubleshooting for 1993 Buick Regal
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