ignatkor

Had this squeaking/chirping sound 3 months ago, back then I went ahead and replaced both belts (since the vert had 85000 miles on the clock) that seemed to fix the problem. Yesterday heard loud chirping sound ,obviously coming from belts/pulleys. It only squeaks when I put my foot on the accelerator, even when I do it real easy. when the car just idling there is no sound at all. Can't be the belts since they are basically brand new, no signs of wear and tear, no cracks, etc. so I'm guessing it must be one of the pulleys. I'm going to Chevy dealership in a few days, but I thought if it is something relatively simple I could do myself. Anybody had a similar problem?
Thanks

dgrant3830

Take a good look at the harmonic balancer on the crankshaft and see if its wobbling. If so, that will need some attention right away.

ignatkor

Thanks! I looked and it did seem a bit wobbly. The strange thing though is that even after I turn the car off the chirping continues for another 10-15 sec. I can still hear it while the belts and pulleys not even moving anymore.

dgrant3830

HVAC Blower motor? Radiator fan motor's?

corvettedaddy11

That chirping is a PITA,changeing belts cured mine!!

tricep

Upper tensioner

Lower tensioner

Idler

dgrant3830

No offense but he said it was still chirping after shutting down the engine so it couldn't possibly be an tensioner, at least I don't think so. I could be wrong of course.

ignatkor

I certainly appreciate you suggestions, it does sound like it's coming from either belts or pulleys. I'm going to call dealership this morning. My dilemma now is that my local dealership has only one mechanic who works on vettes and is busy all the time, so it will probably be a few days(or even weeks) before I get it looked at. The alternative would be to take it to a local car shop(with a certified mechanic ) and have him look at the car today. I wouldn't think twice if it wasn't my DD but it seems like it might be relatively simple problem that any experienced mechanic could figure out.
Another option is a corvette shop which is 50 miles away from me and charges insane rates like 150$hr.

dgrant3830

Well, at least manually spin the radiator fans and see if they squeak. Try shutting down the HVAC while your engine is still on and see if the squeak goes away. The idlers have no spinning parts when the engine is off to the best of my knowledge and I can't think of anything other than mentioned that would be related after its shut down but still squeaking.

ignatkor

Well I just got a call from my local automotive, it was serpentine belt tensioner and idler pulley that needed to be replaced.

LaMagred02

are they changing them?

ignatkor

Yes they are