C4 Kickdown Leak

A

adr3naline

New Member

Jun 27, 2010

12

0

0

Utah

Jun 28, 2010

#1

• Jun 28, 2010

• #1

I've got a leak where my kickdown attaches to my transmission. The leak was bad enough that it fried my neutral safety switch... so before I get a new switch I want to fix the leak. I've seen others here mention that they've had the same problem, but I've never seen a solution... how do I get to the seal? What's the procedure to fixing this leak?

 

2

2+2GT

10 Year Member

Apr 25, 2009

3,333

10

79

Southeastern Pennsylvania

Jun 28, 2010

#2

• Jun 28, 2010

• #2

To replace the seals, IIRC, you need to drop the pan, and, I think, the valve body, to get the lever out. Then the seals.

This should be in the Factory Service Manual in detail.

 

brianj5600

Active Member

Sep 19, 2003

1,964

2

39

Middle TN

Jun 28, 2010

#3

• Jun 28, 2010

• #3

The shift shaft seal requires removal of the valvebody. It is a metal clad seal. The kickdown uses a unique oring. The cross section is square and has grooves. They are not easy to get, and they don't always seal.

 

PoppyMod

Member

Jun 27, 2010

617

6

19

Severna Park, MD

Jun 28, 2010

#4

• Jun 28, 2010

• #4

adr3naline said:

I've got a leak where my kickdown attaches to my transmission. The leak was bad enough that it fried my neutral safety switch... so before I get a new switch I want to fix the leak. I've seen others here mention that they've had the same problem, but I've never seen a solution... how do I get to the seal? What's the procedure to fixing this leak?

Click to expand...

Before you start gutting the tranny, check to make sure the "0" ring behind the shaft is good. It should be behind the neutral sw.
Good Luck

 

brianj5600

Active Member

Sep 19, 2003

1,964

2

39

Middle TN

Jun 29, 2010

#5

• Jun 29, 2010

• #5

The seal behind the NSS is a metal clad. Meaning it has a stamped steel outer ring with a rubber seal that goes around the manual lever. The o-ring goes inside the end of the manual lever shaft and under the kick down lever which is held to the kick down shaft with a nut.

 

A

adr3naline

New Member

Jun 27, 2010

12

0

0

Utah

Jun 29, 2010

#6

• Jun 29, 2010

• #6

So, I don't understand... is the seal inspectable without getting into the transmission?

 

brianj5600

Active Member

Sep 19, 2003

1,964

2

39

Middle TN

Jun 29, 2010

#7

• Jun 29, 2010

• #7

Yes, the kick down o-ring is under the kickdown lever which is held on by a single nut. It takes longer to get under the car than get to the o-ring.

 

Reactions: Alex72stang

A

adr3naline

New Member

Jun 27, 2010

12

0

0

Utah

Jun 29, 2010

#8

• Jun 29, 2010

• #8

Great! Thanks! I hope that I can tell if it's bad or not!