trans is leaking

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Sep 15, 2008 | 09:50 PM

DriveAVette

Thread Starter

Racer

Joined: Apr 2001

Posts: 289

Likes: 0

From: Buffalo Grove, IL IL

trans is leaking

There is a tiny leak somewhere on the back of my car. Maybe a cap-full or 2 of trans fluid over the last 5 months. I tried to tighten up any bolts I could see, but no good.

Where might it be coming from? Is this common and how do I fix it?

IT looks like it is coming from where (I think, been several months since I looked) the trans mates to the rearend section. OR atleast that general area.

Any ideas? Will give me something to do over winter i guess.

Sep 15, 2008 | 11:37 PM

lucky131969

Tech Contributor

Joined: Jan 2007

Posts: 19,360

Likes: 1,127

From: Dyer, IN

Quote:

Originally Posted by DriveAVette

Yeah, degrease, wipe down, and look for the point of origin.

Sep 16, 2008 | 02:09 AM

PDQC5

Instructor

Joined: Apr 2004

Posts: 133

Likes: 7

From: Wenatchee WA

if it is actually leaking from where the diff bolts to the transmission then it would most likely be the rear trans seal.

Sep 16, 2008 | 08:38 PM

4DRUSH

Le Mans Master

Joined: Feb 2004

Posts: 8,629

Likes: 16

From: York PA

Most likely the driver's side rear diff. cover. Very common

Sep 17, 2008 | 06:59 AM

jrmotorsports55

Racer

Joined: Apr 2008

Posts: 323

Likes: 0

From: Parma OH

I had fluid coming from the vent tube in mine. Turns out the previous owner had over-filled it. It was gathering in that same spot (seam between tranny and diff housing).

Jason

Sep 17, 2008 | 06:18 PM

FL_Dave

Instructor

Joined: Feb 2007

Posts: 115

Likes: 9

From: Tampa FL

Dif or tranny seal

I had both leaking at 55k on an '00.

The easiest way to clean and determine the leak is to use a spray bottle of brake cleaner and a bunch of newspaper under the area. Spray the area down, the old oil drops to the paper. Drive for a day or two and take a look. For most people, the leak becomes obvious.

Sep 17, 2008 | 06:29 PM

AFTRBRNR

Pro

Joined: Mar 2007

Posts: 600

Likes: 11

From: Wilmington NC

My car is leaking from the actual drain pan. I notice a couple of drops here and there.

Cause: The last performance shop that worked on my car installed the exhaust pipes incorrectly. They were rubbing one side of the pan which caused slight damage to the pan and seal.

I have had the seal replaced and spent plenty of time

to remove the

WELDS

from my exhaust pipes and re-install them correctly. Less leaking now but the pan was permanently damaged.

I am replacing the whole tranny with a level IV RPM next month

. Problem solved!

Sep 17, 2008 | 07:43 PM

kettemr

Instructor

Joined: Mar 2008

Posts: 218

Likes: 1

If it is leeking at the seem between the two halves of the transmision case (near the rear of the tranny, it has to come out and they re-seal it. Plan on about $1,600. If its the left differential seal, plan on about $400. Ive had both.