I replace my alternator, battery light and negative battery sensor/terminal and I have my battery light on. I suspect the tension for the serpentine belt is too loose. Do you have any recommendations on how to test this or how to tighten the tension?
![[06] Accessory/Serpentine Belt Change - 2013-2019 Subaru Crosstrek [VX]](/img/n.gif)
I replace my alternator, battery light and negative battery sensor/terminal and I have my battery light on. I suspect the tension for the serpentine belt is too loose. Do you have any recommendations on how to test this or how to tighten the tension?
You might need to put in a new tensioner pulley. It would be fairly cheap to do so. If it’s bad, your serpentine belt will be loose.