Join Date: Jun 2012
Location: Stafford, VA
Car: Subaru Outback 2002 H6 LLBean
Feedback Score: 0 reviews
Why is my serpentine belt continuously shredding?
2002 H6 Outback, LL Bean. 140k miles, car is 6 months or so new to me, no mechanical history on it. I have replaced CV axles, changed all fluids, serviced transmission, replaced filters, etc.
Serpentine belt shredded on the interstate, I took it to a chain shop because it was on a weekend. They replaced the idler and the belt. I asked them to replace the tensioner at the same time, they said it was a waste of money.
Three days later, belt is shredding again. They told me they didn't know what was wrong, and put another belt on it and to go to the dealer.
Took it to my regular mechanic, they said it looked fine, that the aftermarket idler seemed a little big, and that the tensioner had play. They said to drive it until it become a problem, but that it looked fine at the moment. Couple days later the belt starts shredding again.
Took it to the dealer, the dealer told me the aftermarket idler was a problem, as well as the tensioner being too loose. I mentioned occasional issues with steering, because I know that the power steering pump is on the belt. They replaced both the (new) idler and the tensioner, and also replaced the power steering pump.
Now, three days later, the serpentine belt is shredding again. What gives?