A/C belt flaps (tensioner problem?) HELP please! 2003 H2
 

Well last year I started hearing a smacking noise when I turned my A/S on. Thought a belt was snapped and flapping against something as it was rotating (1800-200 rpm) . It was the A/C belt. Got it replaced but it was late in the year so I didn't use it anymore.

This year It happened again. Got it replaced yet again ( I think he said it was a DECO model or something like that. Not AC delco though. Day later I noticed a squeeling sound around 1800 RPM when I was leaving from a dead stop. Took it back in, and lifted the hood, reeeevvvved it up a bit, and he (mechanic) noticed that the belt was flapping up and down (still in 1 piece though). So he ordered an AC Delco belt and tensioner, and it had the same issue, ordered an GM belt and tensioner, and still I am having the same issue.

Can anyone help me out that has had this issue and fixed it, or who knows what it may be.

Thanks,
Terry

Nobody has experienced this before? Still hoping for some help.

I too have a squealing pig
 

I have been dealing with squealing belts for a year or more. :mad:

The threads have been no help, only tells you to change the belts and tensioner - no duh.

I have just posted the below thread asking for help with this problem. You can see the things that have been done to my H2, none have worked. The pig is still squealing.

I recommend posting a comment on my thread so if anyone has an answer you will be notified, hence me posting to your thread.

The only thing that I can think of is getting a laser tool for exact alignment

I hope we can get this figured out. Click on below link.

https://www.hummerforums.com/forum/h...g-crazy-28540/

Maybe you just keep getting crap tensioners from the get go. Did they every measure the tension on them?

http://www.daycoproducts.com/daycowe...Dial-Gauge.gif

I'd take a closer look at the compressor, maybe the bearings are going bad and its seizing up occasionally and causing the belt to slip.