AW4 replacement question

J

Joshua

NAXJA Forum User

Location

Cincinnasty

• Oct 7, 2007

• #1

I am replacing the transmission in my 96' 4.0. I have the new (used) tranny, and I am wondering if I should drain and refill the torque converter prior to bolting it to the flywheel or if it is filled with fluid through the tranny itself when I fill it up. Thanks!

 

L

lawsoncl

NAXJA Forum User

Location

North Idaho

• Oct 7, 2007

• #2

It will fill up enough when you add fluid.

 

J

Joshua

NAXJA Forum User

Location

Cincinnasty

• Oct 21, 2007

• #3

I've been busy lately, but I finally have everything put back together - new (used) transmission, new battery cables from Kellys WiP, new lights, and I wanted to test the transmission on a test drive.

The snag is, after I filled it with fluid, the transmission wont shift into gear. The linkages are all hooked up right, but it wont shift into drive, 3rd, or 1,2. Did I not add enough fluid? The dipstick is showing that I have enough but I'm not entirely sure that its accurate. Does anyone have experience in this area?

 

T

TwistedSymphony

NAXJA Forum User

Location

Mass

• Oct 21, 2007

• #4

Are you checking it while idling in N? Mine would show full when it was parked...but once I put it in N...it would go down!

When you put it in D or 1-2, will it move at all...or is it going nowhere? When I took my MJ for a test drive, it was vry sluggish...almost felt like it was in OD. But after a while, it began to gain power. I think that the flud was just not circulated all the way through.

 

J

Joshua

NAXJA Forum User

Location

Cincinnasty

• Oct 21, 2007

• #5

Its going nowhere. I checked the fluid in park and neutral, and it didnt change, its hot now and just ABOVE the max line... will this cause a problem?

 

S

snow580

NAXJA Forum User

Location

Arlington,Mn.

• Oct 22, 2007

• #6

Okay first thing make sure the transfer case is not in neutral. I know it's obvious but i have seen that befor:doh: If it is I'm willing to bet that if you didn't put a quart or so of atf in the torque converter prior to fitting it to the tranny it probably has gotten airlocked. Or maybe you just have a bad transmission. Which torque convertor did you use?

 

J

Joshua

NAXJA Forum User

Location

Cincinnasty

• Oct 22, 2007

• #7

I used the one that came with the new (used) transmission. I added alot of fluid to the torque converter but probably not a quart. Also I just cleaned my nss, because I noticed my reverse lights werent working, but that didnt help at all. Verified that tc wasnt in neutral.... I wish it had been! It would have been an easy fix...

 

L

lawsoncl

NAXJA Forum User

Location

North Idaho

• Oct 22, 2007

• #8

What year is the donor AW4 tranny? Same spline count? I understand a 21-spline output will bolt up to a 23 spline xfer case, but won't actually engage. If you give it gas, does it shift up through the gears? That would point to a xfer case in neutral or not engaging the output shaft. YOu bolted up the tc to the flexplate too right?

 

J

Joshua

NAXJA Forum User

Location

Cincinnasty

• Oct 22, 2007

• #9

The donor is from a 96', and my xj is a 96'. I counted the splines before I installed, and they are both 23. Ill have to try shifting up through gears, but let me ask this - If I didnt put enough fluid in the torque converter, will it fill iself through the transmission or will I have to pull everything apart to top it off?