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post #1 of 7 Old 06-11-2017, 06:28 PM Thread Starter
96xjinprogress
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Aw4 issue

Ok my 96 xj automatic aw4 is having some issues with the overdrive. I just changed the trans fluid it was just a drain and fill but anyways. It will go into overdrive for the first 30 mins of driving but after that it won't go back into overdrive. Does anyone have any issues with the aw4 with an overdrive problem.


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post #2 of 7 Old 06-12-2017, 06:30 AM
75SV1
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I do or did. I seemed to run 3K RPM at 65mph to 70 mph. I just replaced my TPS. It seemed to help. I haven't run on the highway yet. There is a rod or something that I think is for the overdrive in the valve body plate. Also, adjust the trans cable.
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post #3 of 7 Old 06-12-2017, 08:13 AM
cruiser54
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Your drain and fill is a good thing.

Is overdrive the issue or the torque converter lockup?

this never hurts to do.
http://cruiser54.com/?p=58

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post #4 of 7 Old 06-12-2017, 09:15 AM
75SV1
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just asking, what fluid did you use? DextronIII? I did use AFT+4. From recommendations on this board, I swithed to DextronIII/Mercon. I think it shifted better.
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post #5 of 7 Old 06-12-2017, 05:36 PM Thread Starter
96xjinprogress
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Well I did the tv cable adjustment and no change. My tps is new but then again it could still be bad. I didn't think that the tps had any connection with the tranny so I'll look into that. And cruiser54 I'll also look at that as well. I'm jeep is weird honestly bc the date on the door is 02/96 so it doesn't have the updated connectors. I have actually bought a 95 and a 96 fsm lol. But would that make my a renix? I myself am more of a engine man, I'm not to much on transmissions I can't replace them but not rebuild them lol. But I'll go threw and refresh those connectors it couldn't hurt? So should disconnect the battery in this process?
But also 75SV1 I used dexron III


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post #6 of 7 Old 06-12-2017, 05:40 PM Thread Starter
96xjinprogress
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O and cruiser I'm not sure if it's the torque converter lock up. What exactly is that? All I know is that overdrive is not kicking in as it should. It's intermittent it'll work for a min then stop. I can't park it for an hour or so drive it and it'll start going in again. For 30 mins or so then it'll stop and just stay in fourth


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post #7 of 7 Old 06-13-2017, 02:34 AM
BagusJeep
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It is a 4 speed transmission, there 4th speed is an overdrive working on 3rd gear. Basically for electrical control solenoid no. 2 is on for 3rd, off for 4th overdrive

I suggest starting off with the manual shifting test as this will confirm 4th overdrive works (solenoid is off).

MANUAL SHIFTING TEST
(1) This test determines if problem is related to
mechanical or electrical component.
(2) Stop engine and disconnect transmission control
module or module fuse.
(3) Road test vehicle. Shift transmission into each
gear range. Transmission should operate as follows:
≤ lock in Park
≤ back up in Reverse
≤ not move in Neutral
≤ provide first gear only with shift lever in 1-2 position
≤ operate in third gear only with shift lever in 3 position
≤ operate in overdrive fourth gear in D position
(4) If transmission operates as described, proceed
to next step. However, if forward gear ranges were
difficult to distinguish (all feel the same), or vehicle
would not back up, refer to diagnosis charts. Do not
perform stall or time lag tests.
CAUTION: Do not overspeed the engine during the
next test step. Ease off the throttle and allow the
vehicle to slow before downshifting.
(5) Continue road test. Manually downshift transmission
from D to 3, and from 3 to 1-2 position. Then
manually upshift transmission through forward
ranges again.
(6) If transmission operation is OK, perform stall,
time lag and pressure tests. If transmission shifting
problem is encountered, refer to diagnosis charts.
(7) If a problem still exists, continue testing with
DRB scan tool.

Not sure what the problem is, but confirm you are getting 4th without the electronics

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