
Anyhow, I opted for their 21 point "Winter Checkup" inspection as well. I mentioned to them them I hear a whining noise at startup. They look into it. During this inspection, they determined that the noise was coming from the serpentine belt. Belt condition itself is ok, but is quite loose. Auto tensioner is weak, and they recommend replacing the belt auto tensioner. Also, they recommend that if they're replacing the auto tensioner, they may as well replace the belt itself too.
Has anyone ever done this repair themselves, or see it as a "must-do" repair? Parts and labour for this repair is quoted at about $230 without a new belt.
Any feedback appreciated.