1986 Automatic Trans Whine???

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Oct 25, 2011 | 10:41 PM

rrt898

Thread Starter

Burning Brakes

Joined: Oct 2010

Posts: 1,037

Likes: 28

From: Montclair New Jersey

1986 Automatic Trans Whine???

I here a "whine" when the car is in park or neutral. The trans shifts fine. The "whine" may have been there for a while because now that it is getting colder the windows are up and its easily heard. I did have the trans rebuilt in August. Any ideas.......

thanks....

Oct 26, 2011 | 08:59 AM

Keystring

Drifting

Joined: Aug 2006

Posts: 1,624

Likes: 2

From: Canandaigua New York

It might be your torque converter starting to go.

I've never heard an automatic tranny whine, but the converters certainly will.

Check your fluid levels.

The only way to really check is to put the car up on a lift and listen near the inspection cover.

Oct 26, 2011 | 10:08 AM

rrt898

Thread Starter

Burning Brakes

Joined: Oct 2010

Posts: 1,037

Likes: 28

From: Montclair New Jersey

I will check the car on a lift. I know that new parts can fail also but; the torque converter is new also. At least I have a warranty.

Oct 26, 2011 | 07:39 PM

cshuman

Pro

Joined: Apr 2001

Posts: 744

Likes: 13

From: Lenoir City TN

Is the detent cable adjusted properly? I missed around with that adjustment on mine before and as I remember it made it wine some. Once I had it set correctly the wining stopped.

Last edited by cshuman; Oct 28, 2011 at 07:13 AM.

Oct 27, 2011 | 03:56 AM

Cliff Harris

Race Director

Joined: Apr 2002

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From: Anaheim CA

Sometimes the pump will whine if the internals are worn.

Oct 27, 2011 | 07:24 AM

rrt898

Thread Starter

Burning Brakes

Joined: Oct 2010

Posts: 1,037

Likes: 28

From: Montclair New Jersey

The trans is rebuilt with a bigger pump........

Oct 28, 2011 | 01:57 AM

Cliff Harris

Race Director

Joined: Apr 2002

Posts: 10,036

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From: Anaheim CA

The pumps are all the same size. The difference is in the number of vanes. The early pumps had 7 vanes. In late '87 they went to 10 vanes and in the mid '90s they went to 13 vanes. Supposedly the higher vane count gives better pressure at high RPMs. They also claimed that the 13 vane pumps were quieter than the earlier ones.