okay, so my second A/C belt just ripped after only 2.5 weeks of being on this time. I think is has to be the Idler pulley. I did some searching and seems like most people with problems with belt ripping seemed to be the Idler pulley. My question is how hard is it to replace and where is the best place to get it from, i could go to local dealer but would rather save some money buying it online. I went to infinitipartsusa.com and it seemed to be 109 dollars.. seemed a bit expensive not sure if i was looking at the right part..
I have an 05' G35

also if anyone thinks it might be something else or has had this happen to them and could chime in that would be great!! Thanks for any help.

 

You can get them online at RockAuto for about 50 bucks or less. There pretty easy to swap out. You sure the belt was tightened to much or anything?

 

yea, i found a few more sources for the pulley.. i don't think its tightness, i followed the specs to the best i could i used a weight on top of a wood stick and ruler to measure the belt play. i was rushing to replace it 2 weeks ago cause it was going to hit 80+ degrees and totally forgot to actually play with and spin the idler pulley to see if bearing seemed bad. I'm going to replace the Idler Pulley and another new belt and hope its fixed. Ill update when I'm done see if it fixed it or not