AT Shifter gate broken

BMThiker

I aim to misbehave
Moderator
SILVER Star
 
Joined
Sep 19, 2006
Messages
8,816
Location
Atlanta
So I went camping up in N. GA this weekend and I was downshifting the trans for running down hill on long sections of gravel mountain roads. When I went to put it back in drive, it was acting stiff at the shifter and I think I broke something in the gate mechanism. The shifter now has no detent stops and flops around. I'm using a little bungee to keep the shifter pegged in the gate where I need it for now.

Someone please tell me they know what this is and that it's and easy fix.
 

1911

chupacabra
 
Joined
Aug 11, 2006
Messages
5,393
Location
Parker County, Texas
So I went camping up in N. GA this weekend and I was downshifting the trans for running down hill on long sections of gravel mountain roads. When I went to put it back in drive, it was acting stiff at the shifter and I think I broke something in the gate mechanism. The shifter now has no detent stops and flops around. I'm using a little bungee to keep the shifter pegged in the gate where I need it for now.

Someone please tell me they know what this is and that it's and easy fix.

hmmm ... I've had mine out a bunch of times, but never taken it apart, or had it behave like that. It's a reasonably small, self-contained unit that is "fly by wire", no direct linkage to anything. Sorry I can't be of more help. Good luck with the repair.
 

BMThiker

I aim to misbehave
Moderator
SILVER Star
 
Joined
Sep 19, 2006
Messages
8,816
Location
Atlanta
Talked with @beno and looking like I will have to replace 33560 assembly. Haven't priced it yet.

367CD6CF-99F7-4DB5-AC75-99880E4A2C08.jpeg
 

BMThiker

I aim to misbehave
Moderator
SILVER Star
 
Joined
Sep 19, 2006
Messages
8,816
Location
Atlanta
I took everything apart today and discovered the detent pin was missing. After poking around in the tunnel I found the "bullet" that is the detent pin. It goes in a hole right next to the shifter.

FC0276B1-8974-4CE8-91B1-DB7BCCD02BC1.jpeg


F55D82EB-F1C7-4F7D-A185-FBD9B163C7C1.jpeg
 

BMThiker

I aim to misbehave
Moderator
SILVER Star
 
Joined
Sep 19, 2006
Messages
8,816
Location
Atlanta
Unfortunately the plastic crown around the hole was cracked and it wouldn't stay in the hole when I got it down to 3/2/1 gear positions.

AA116B8C-0E41-4B06-BB08-6D3A8E20BAAF.jpeg


0994FCE4-230E-41B6-AFD6-2E3802EA84CB.jpeg
 

BMThiker

I aim to misbehave
Moderator
SILVER Star
 
Joined
Sep 19, 2006
Messages
8,816
Location
Atlanta
Here's my fix...drilled out the bottom of the bullet and inserted some welding rod. The extra tail keeps it from flipping out.

A1853069-0F33-4F71-A614-47D71570CDE4.jpeg


80920F3B-AE1C-4CD9-BE47-15FDFAC36122.jpeg
 
Joined
Mar 21, 2007
Messages
64
Location
Kamloops, BC
I had the exact same thing happen last year. The shifter was progressively getting stiffer when manually shifting down. The pin housing on mine was quite broken, so I ended up sourcing a used shifter unit that was in as new shape. I kept the old unit 'just in case' I need something out of it later...;)
 

BMThiker

I aim to misbehave
Moderator
SILVER Star
 
Joined
Sep 19, 2006
Messages
8,816
Location
Atlanta
In case anyone is wondering, this is what the inside of the shifter plate looks like. The gate regulates the shifter rod, the detents in this plate help keep it there.

This is what it looks like upon disassembly. White grease caked with dust/debris and presumably...particles of ABS plastic.
1924880


After I cleaned it up, you can see the groove path that the "bullet" has carved into the plastic.
1924881


1924882


I recovered all the surfaces with grease before I reassembled it.
 
Joined
Mar 21, 2007
Messages
64
Location
Kamloops, BC
Great coverage BMT. Mine was very similar. My 'new' one is already experiencing the same sticky spots. Will have to go in there and clean and relube everything to prevent future problems.
I had taken pics and documented my issues with this, but things burned down last fall, so starting fresh, so to speak.
 
Joined
Jul 8, 2018
Messages
8
Location
Anaheim, CA
Interesting. Thanks for sharing @BMThiker . I was test driving a friend's FJrig and had issues downshifting as soon as I was merging in traffic. I thought it was the gate cover getting hung up but symptoms ring similar to yours. Will definitely share these results with him.
 
Top Bottom