The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Squealing noise when on gas in reverse, now .......

*YoungPup1977* · 02-17-2018, 12:13 AM

take the bolts out of the Torque converter and see if torque converter turns freely...start engine while TC is disconnected and see if noise goes away...

Sounds like the pump gears are NOT into the TC correctly... I have seen this where the trans works fine but slowly wears down the pump gears...

You can remove the cooler lines, start engine with TC connected.... and see if any pressure lost....make sure you do not spray ATF all over the place....

What kind of trans do you have ? Did you leave trans in vehicle while you replaced the engine ? How did you install the NEW TC into the trans ?

02-17-2018, 12:13 AM	#4
YoungPup1977 Account Suspended Join Date: Jun 2015 Location: No longer here Posts: 1,000	Re: Squealing noise when on gas in reverse, now ....... take the bolts out of the Torque converter and see if torque converter turns freely...start engine while TC is disconnected and see if noise goes away... Sounds like the pump gears are NOT into the TC correctly... I have seen this where the trans works fine but slowly wears down the pump gears... You can remove the cooler lines, start engine with TC connected.... and see if any pressure lost....make sure you do not spray ATF all over the place.... What kind of trans do you have ? Did you leave trans in vehicle while you replaced the engine ? How did you install the NEW TC into the trans ?