The Yaris sucks.

[daf62757]

Originally Posted by ilikerice

I honestly do not know. I have just noticed this after working on cars for a while. Noted that not ALL "V" motors have those type. My girls Xterra has 3 belts for each accessory and each has a separate adjustable tensioner.

Its mostly the serpentine belts that connect all accessories (A/C comp, P/S pump, and alt.) have the spring loaded tensioner.


I have only had to tighten my belt one time after replacing it on any car. As CTscott says, usually a week after replacing when the belt finally stretches to its limits. I just examine the belt during oil changes to see if it starting to dry rot. Then I would consider changing it, not tighten it more.

I think part of the problem is that the engine is transverse and the amount of open area to work on the belt and other components is very limited. Us old timers have a long history of busted knuckles from doing work back with the V8 was almost standard and we had plenty of room.