Squealing sound - The 1947 - Present Chevrolet & GMC Truck Message Board Network

stevedh76 · 06-20-2009, 06:39 PM

Hello all,

Im usually on the 60-66 board but i also have a 76' GMC so i figured i would ask to try and get some ideas with one of the problems that i am having. My truck has a 350 with a TH350 tranny and for the past month or so there is a squeal coming from my truck. I thought it was the belts and very well could still be the belts, but it only happens from 50 MPH and up. Whenever i let off the gas and it goes below 50 MPH it doesnt do it. I tightened up the belts and it still does it every time. It is driving me nuts so do you guys have any ideas on what it might be. It even sounds like squealing belts and changes pitch as the truck is going below 50 MPH. Any ideas would be greatly appreciated.

Thanks,

06-20-2009, 06:39 PM	#1
stevedh76 Shlongbed #20 Join Date: Apr 2009 Location: Artesia, NM Posts: 55	Squealing sound Hello all, Im usually on the 60-66 board but i also have a 76' GMC so i figured i would ask to try and get some ideas with one of the problems that i am having. My truck has a 350 with a TH350 tranny and for the past month or so there is a squeal coming from my truck. I thought it was the belts and very well could still be the belts, but it only happens from 50 MPH and up. Whenever i let off the gas and it goes below 50 MPH it doesnt do it. I tightened up the belts and it still does it every time. It is driving me nuts so do you guys have any ideas on what it might be. It even sounds like squealing belts and changes pitch as the truck is going below 50 MPH. Any ideas would be greatly appreciated. Thanks, __________________ SEMPER FIDELIS - USMC 1962 Chevy C10 LWB StepSide 235/4 speed 1976 GMC Sierra C15 LWB Fleetside 350/350 ------------------------------------------- 1999 Acura Integra LS 2008 Vulcan 900 Custom



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