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Old 01-06-2019, 01:47 PM   #65
Black_Sheep
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Join Date: Jun 2017
Location: upper midwest
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Re: What's going wrong inside my 350?

Quote:
Originally Posted by whitedog76 View Post
The high pitch squeal on the you-tube video is concerning, sounds like a spun bearing, or some sort of metal on metal.

The flex-plate video, I didnt' hear the squeal, but sounded like the starter hanging up.

1) I know there were some alignment issues with GM starters.

2) I've seen the center broken out or flex-plates. Everything appeared normal until dis-assembled.

3) Did the torque convertor get seated properly? May be an issue with your front pump.
It sounds like metal to metal to me too. Pull the plugs and rotate the crank by hand, without the engine running it should be easier to hear where the sound is coming from.
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