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Unread 09-05-2009, 05:40 PM   #1
theplasterman
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Automatic transmission not shifting properly??

I just swapped out the old carter carburetor for a new Weber 32/36. When I took it for a spin around the block the automatic transmission won't shift properly. It drags out and shifts at a higher RPM than it did before the swap. It is a brand new transmission and was working fine before I swapped out for the Weber. Is there a vacuum line or something that connects to the carburetor that affects the transmission? Also, I disconnected the stepper motor from the Carter and didi not hook it back up nor did I do the Nutter bypass yet. Could that be affecting the transmission?

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Unread 09-05-2009, 05:48 PM   #2
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Is it a TF999? Sounds like you need to adjust the throttle position linkage to the trans. The procedure is in the FSM if you got it. It's pretty easy and important.
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Unread 09-05-2009, 06:01 PM   #3
theplasterman
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Forgive my ignorance but what is the FSM?
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Unread 09-05-2009, 07:07 PM   #4
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That would be the Factory Service Manual. There is a download available somewhere on this board, a generous gift to the jeep world given by CJ Chet.

There is no connection either in vacuum nor with the computer to the TF999

What you are experiencing is the position of the oem throttle linkage since you have installed the new bell crank type linkage to the new carb

Here is an image out of the Chilton manual of where to look. There should be IIRC approx. 1/2" at idle between the indented stop of the arm and the the oem linkage pin.

As mentioned above it is important for you to make the adjustment before driving anymore.
-------------------------
EDIT Found it, http://www.civilianjeep.info/84-86FSM/CJ-FSM-84to86.pdf
misc-photos-026.jpg  

Last edited by mcmud; 09-05-2009 at 07:21 PM..
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Unread 09-05-2009, 07:47 PM   #5
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Thanks I will see if that helps. The transmission is a TF 727
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Unread 09-05-2009, 10:08 PM   #6
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The longer the shift rod is set, the higher RPM the trans will shift.
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Unread 09-05-2009, 10:46 PM   #7
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The shift rod? Is that the linkage as shown above?
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Unread 09-05-2009, 11:21 PM   #8
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Is the vacuum line hooked up to the modulator?
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Unread 09-05-2009, 11:23 PM   #9
mcmud
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Will you identify which of these pan covers match to your trans.?
Do you have the linkage as shown in the image above?
727.jpg   999.jpg  
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Unread 09-06-2009, 09:25 AM   #10
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The top picture shows the tranny pan. Yes my linkage looks like the one above.
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Unread 09-06-2009, 09:49 AM   #11
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Here are some Pictures
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Unread 09-06-2009, 04:40 PM   #12
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Here's a link to the FSM:

http://www.civilianjeep.info/84-86FSM/CJ-FSM-84to86.pdf
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Unread 09-06-2009, 05:20 PM   #13
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What does it mean when it says to "set the throttle off the fast idle cam"?
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Unread 09-06-2009, 05:46 PM   #14
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That would be off of the fast idle lever in your application. That is used to maintain fast idle until the choke plate is open which would pull that lever away from the fast idle screw. Purpose is to be certain that the linkage is sitting in the normal running position.
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Unread 09-06-2009, 09:19 PM   #15
theplasterman
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Got it dialed in guys, thanks for all the help!!
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