I just installed a new alternator for a 2001 Volvo V70 T5....

i thought since im at it let me put in a new belt as well. Car turned on and all seemed fine but the belt tensioner pulley seemed like it was breakdancing.

i checked all the bolts and tightened everything up but to no avail, everytime i turn the car on the belt tensioner is shaking and it looks like its vibrating the engine.

did i go wrong anywhere or is the tensioner shot?

how often do these things go bad, is it common?

i dont even have any idea how to replace it and if thats the problem....

anybody done something like this?

 

They will move some more so if the A/C is on.

 

i know that Tech but the thing is........is that normal?

i never paid attention to it.......in my other cars the tensioner is still, no moving or dancing

do i replace it, and is it an easy procedure?

am i gonna curse life itself it i take to this task.

I did however manage to replace the alternator, thanx a lot for the tips, really usefull things you told me, especially loosening the a/c compressor bolts

 

Some movement is normal. If you feel uneasy then you can change it. There is 2 bolts that hold the assembly in there. They are a little hidden but they are there.