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Old 04-01-2016, 05:36 PM
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Transmission issue, need help

I got water in my transmission, had it flushed a few times the next morning. Since then the transmission shifts up fine through all 3 gears but has issues shifting down only into first gear. My mechanical told me to manually shift through all the gears and that might help but so far it has not. My question is if anyone knows what's going on? I'm expecting to need a new transmission but if I didn't that would be great! I'm no expert on any of this, but what could be something that's causing the issue that I may be able to replace? Would the solenoids be the problem? Thanks, I look forward to some responses

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Old 04-01-2016, 05:38 PM
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Sorry I'm new to forums, it's a 99 tj. 32rh auto transmission, 4.0L

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Old 04-01-2016, 05:47 PM   #3
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I believe you're going to need the transmission rebuilt. Might want to have the breather port relocated while it's out of the jeep.
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Old 04-01-2016, 06:48 PM
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It runs fine so far, aside from not wanting to drop into first. What do you is causing this? Thanks
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Old 04-02-2016, 02:56 PM   #5
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It would appear that the 1-2 shift valve is sticking. I would suggest you have dirt in the valve body..

1. drain the fluid and drop the oil pan. You really don't want dirty water in there. It will wear things out real fast.
2. remove oil filter
3. remove the valve body
4. this is where you disassemble and clean it with solvent and compressed air, paying careful attention to where everything goes. You will need a manual because unless you are super careful some of the ball bearings are going to fall out, and you are going to wonder where they came from. The manual is not terribly clear on where which springs go where, so pay attention.
5. Put it all back together. This might get you out of trouble.
Before putting the valve body back in, you might want to consider cleaning the passages between the valve body and servo's with solvent and compressed air.. To do this you will need to undo the little square headed bolts on the outside of the transmission. This will depressurize the servo's and allow and crap behind the servo pistons to be cleaned.
Once the bolts are out apply compressed air and solvent through the holes the nuts came out of.
Put the bolts back in.
Install valve body & new filter.
Install oil pan..
Before filling it with oil I would disconnect both transmission cooler oil lines at the transmission and blow all the crap out of them with compressed air.
Fill to correct level. Run it and check oil level.. Hopefully this fixes the issue.
And relocating the vent hole is not a bad idea...
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Old 04-02-2016, 08:34 PM   #6
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Quote:
Originally Posted by adam the thomo View Post
It would appear that the 1-2 shift valve is sticking. I would suggest you have dirt in the valve body..

1. drain the fluid and drop the oil pan. You really don't want dirty water in there. It will wear things out real fast.
2. remove oil filter
3. remove the valve body
4. this is where you disassemble and clean it with solvent and compressed air, paying careful attention to where everything goes. You will need a manual because unless you are super careful some of the ball bearings are going to fall out, and you are going to wonder where they came from. The manual is not terribly clear on where which springs go where, so pay attention.
5. Put it all back together. This might get you out of trouble.
Before putting the valve body back in, you might want to consider cleaning the passages between the valve body and servo's with solvent and compressed air.. To do this you will need to undo the little square headed bolts on the outside of the transmission. This will depressurize the servo's and allow and crap behind the servo pistons to be cleaned.
Once the bolts are out apply compressed air and solvent through the holes the nuts came out of.
Put the bolts back in.
Install valve body & new filter.
Install oil pan..
Before filling it with oil I would disconnect both transmission cooler oil lines at the transmission and blow all the crap out of them with compressed air.
Fill to correct level. Run it and check oil level.. Hopefully this fixes the issue.
And relocating the vent hole is not a bad idea...
Adam, you seem to know what your talking about...Stick around here we could use more people with knowledge like you.
OP - let us know what happens...those 3 speeds are pretty tough.
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Old 04-02-2016, 08:49 PM   #7
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How exactly did you flush the transmission? The only way to flush all the water out is to pump it out of the tranny cooler's output port on the passenger-side with the engine running and the transmission in Neutral while you add fresh ATF+4 from the transmission dipstick tube.

Disconnect the passenger side coolant hose from the bottom of the radiator and then connect a short hose to it place it inside a bucket to catch the old contaminated ATF. You're done flushing it when you've added somewhere close to 10 quarts of fresh ATF+4 and the coolant flowing into the bucket turns clear bright red.
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Old 04-03-2016, 09:01 AM   #8
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I've never seen a 32rh survive very long after having water in it. IIRC water can disolve the glue that holds the transmission's internal friction clutch surfaces in place. Due to that glue problem, this is not something that I wouldn't wait on.
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Old 04-03-2016, 11:33 AM
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That's what iv seen post saying on the Internet, most of them say their transmission fails immediately though and iv been driving my jeep for a week now and I'm hoping I got it flushed soon enough that it might survive
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Old 04-03-2016, 11:36 AM
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Originally Posted by Jerry Bransford View Post
How exactly did you flush the transmission? The only way to flush all the water out is to pump it out of the tranny cooler's output port on the passenger-side with the engine running and the transmission in Neutral while you add fresh ATF+4 from the transmission dipstick tube.

Disconnect the passenger side coolant hose from the bottom of the radiator and then connect a short hose to it place it inside a bucket to catch the old contaminated ATF. You're done flushing it when you've added somewhere close to 10 quarts of fresh ATF+4 and the coolant flowing into the bucket turns clear bright red.
I didn't do the flush myself, I took it to a shop. They did tell me they flushed it 3 times and they used the tubes for the cooler at bottom of radiator.
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Old 04-03-2016, 11:37 AM   #11
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Quote:
Originally Posted by jmazza0 View Post
That's what iv seen post saying on the Internet, most of them say their transmission fails immediately though and iv been driving my jeep for a week now and I'm hoping I got it flushed soon enough that it might survive
Ok but as asked in post #7 above, exactly how did you flush it? Like described in post #7 or did you just drop the pan and top it off with 4-5 quarts of ATF? The entire automatic transmission system holds approx. 10 quarts of ATF and it all needs to be flushed/changed.

Edit: Nevermind, I see you replied while I was typing the above response.
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Old 04-03-2016, 11:38 AM
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Originally Posted by adam the thomo View Post
It would appear that the 1-2 shift valve is sticking. I would suggest you have dirt in the valve body..

1. drain the fluid and drop the oil pan. You really don't want dirty water in there. It will wear things out real fast.
2. remove oil filter
3. remove the valve body
4. this is where you disassemble and clean it with solvent and compressed air, paying careful attention to where everything goes. You will need a manual because unless you are super careful some of the ball bearings are going to fall out, and you are going to wonder where they came from. The manual is not terribly clear on where which springs go where, so pay attention.
5. Put it all back together. This might get you out of trouble.
Before putting the valve body back in, you might want to consider cleaning the passages between the valve body and servo's with solvent and compressed air.. To do this you will need to undo the little square headed bolts on the outside of the transmission. This will depressurize the servo's and allow and crap behind the servo pistons to be cleaned.
Once the bolts are out apply compressed air and solvent through the holes the nuts came out of.
Put the bolts back in.
Install valve body & new filter.
Install oil pan..
Before filling it with oil I would disconnect both transmission cooler oil lines at the transmission and blow all the crap out of them with compressed air.
Fill to correct level. Run it and check oil level.. Hopefully this fixes the issue.
And relocating the vent hole is not a bad idea...
I'll definitely look into this, do you think a bad solenoid could possibly be the problem? Thanks for the great and detailed response!
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Old 04-03-2016, 06:10 PM
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What do you think is causing it? If it's a plugged line or something is there an additive I can put in to loosen up and clean it out?
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Old 04-04-2016, 03:23 PM   #14
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The most likely cause is dirt in the valve body. One of the valves probably either the regulator valve or the 1-2 shift valve / governor plug is not seating properly. Or it could be the 1-2 shift control valve. You really wont know without pulling it apart. The good news is that you don't have to disassemble the transmission to remove the valve body. It comes out easily.
There are no solenoids involved.
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Old 04-04-2016, 03:28 PM   #15
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I don't know of any additives that would help.
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Old 04-04-2016, 03:40 PM   #16
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If water gets into an automatic transmission the friction linings that are used to line the clutches absorb it, the water ends up dissolving the glue used to hold the friction material to the clutch plates. A little water you might be able to flush it out w/o damage, a lot and odds are the transmission will need to be rebuilt.
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Old 04-04-2016, 04:53 PM
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When I checked the dipstick there it was pink still, so not too much water got in
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Old 04-04-2016, 04:56 PM
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Originally Posted by adam the thomo View Post
The most likely cause is dirt in the valve body. One of the valves probably either the regulator valve or the 1-2 shift valve / governor plug is not seating properly. Or it could be the 1-2 shift control valve. You really wont know without pulling it apart. The good news is that you don't have to disassemble the transmission to remove the valve body. It comes out easily.
There are no solenoids involved.
It goes from 1-2 fine, it's from 2-1 that it dosnt want to do automatically, so I use the manual shifter and that works fine. Does that still sound like a valve problem? Thank you very much for responses!
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Old 04-04-2016, 06:19 PM   #19
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When I checked the dipstick there it was pink still, so not too much water got in

You could try a reliable shop and have them pull and clean up the valve body, swap out the filter and fill it up with fresh clean fluid. That plus the "flushes" that were done should get all the contaminated fluid out.

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