It's running...but

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Jul 22, 2007 | 10:07 PM

black58

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Joined: Nov 2003

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From: Rockford, IL

It's running...but

Well, I got the truck running the other night. It idles well but there's a lifter clacking. That's not really my concern right now. The tranny pan gasket had let go and all of the fluid had ran out over the last year or so. When I first started it and revved the engine, I heard a loud high pitched squeal from what I think was the transmission area (C-4 automatic) Flex plate maybe??? What would make that noise. I shut it down, changed the gasket, filled it, and started it back up. It's still making the noise. I moved it back and forth, in and out of the garage a few times and revved it again. I heard it again. I tried to drive it down the alley but it died on me and wouldn't stay running then. Who knows? I gave up and pushed it back into it's cave. I'll try again sometime this week. I think I know whats up with the engine dying on me but the squeal, I have no idea. So, to any of you tranny gurus, what would make a squeal like that from the tranny/flex plate area after a year or so sitting empty. Anything specific I should be looking for?

Jul 22, 2007 | 10:54 PM

ALBUQ F-1

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From: NM

If it were something dragging on the flexplate, the noise would (almost certainly) be constant. It sounds like this comes and goes? Did you do anything to the engine or trans since the last time you ran it?

Jul 22, 2007 | 11:34 PM

TheSovereign53

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Joined: Aug 2006

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From: SoCal

Quote:

Originally Posted by ALBUQ F-1

If it were something dragging on the flexplate, the noise would (almost certainly) be constant.

My thoughts...I've run my C4 dry by mistake, but never got any noise.

Jul 23, 2007 | 10:08 AM

black58

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From: Rockford, IL

Quote:

Originally Posted by ALBUQ F-1

No I haven't done a thing to it.

Jul 23, 2007 | 01:49 PM

ALBUQ F-1

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From: NM

Dragging starter (loose bolts or bad Bendix drive)?

Jul 23, 2007 | 01:54 PM

mechmagcn

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Joined: Dec 2005

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From: Moro Bay, AR

With you having problems keeping the engine running, are you sure the squeal is not a vacuum leak? Sometimes a cracked vacuum hose can make some high pitched noises.

Jul 23, 2007 | 03:08 PM

black58

Thread Starter

Elder User

Joined: Nov 2003

Posts: 576

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From: Rockford, IL

Quote:

Originally Posted by ALBUQ F-1

Dragging starter (loose bolts or bad Bendix drive)?

Now that makes a ton of sense. It's a very similar noise to a dragging starter just not as intense. I'll check that. Good call Albuq!

I don't think it's a vaccuum leak. It really sounds like a metallic grind.