46re fluid
#3134114
04/01/23 09:22 AM
04/01/23 09:22 AM
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Joined: May 2005
Posts: 1,966
Apollo, PA.
B1MAXX
OP
top fuel
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OP
top fuel
Joined: May 2005
Posts: 1,966
Apollo, PA.
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I have a 2001 durango w/5.9 that I rebuilt the trans maybe 6 years ago. At the time I used Mighty brand multi vehicle fluid, and replaced the torque converter with a reman unit. The trans shifts fine but the lock-up has been getting funny and now has turned the light on. Just curious what the thoughts are about the possibility of playing with or changing the fluid. Or if the converter was just a p.o.s. from jump and the only remedy is a new one. I was thinking about a quart of type f added to it. 
Last edited by B1MAXX; 04/01/23 09:23 AM.
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Re: 46re fluid
[Re: B1MAXX]
#3134136
04/01/23 11:13 AM
04/01/23 11:13 AM
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Joined: Jan 2021
Posts: 975
rust belt
Moparite
super stock
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super stock
Joined: Jan 2021
Posts: 975
rust belt
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I used Mighty brand multi vehicle fluid I would question if this is equal to ATF+4. Do you have any codes? Also see what the temp of the trans is running at(with a scanner).
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Re: 46re fluid
[Re: B1MAXX]
#3134145
04/01/23 11:32 AM
04/01/23 11:32 AM
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Joined: Mar 2011
Posts: 3,069
Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,069
Michigan
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I have a 2001 durango w/5.9 that I rebuilt the trans maybe 6 years ago. At the time I used Mighty brand multi vehicle fluid, and replaced the torque converter with a reman unit. The trans shifts fine but the lock-up has been getting funny and now has turned the light on. Just curious what the thoughts are about the possibility of playing with or changing the fluid. Or if the converter was just a p.o.s. from jump and the only remedy is a new one. I was thinking about a quart of type f added to it. Original trans for the vehicle ? How many miles on the trans from new ? What code is setting ? Why did you rebuild the trans to start with ? What did you find wrong in the trans when you had it apart ?
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Re: 46re fluid
[Re: A727Tflite]
#3134156
04/01/23 12:52 PM
04/01/23 12:52 PM
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Joined: Feb 2005
Posts: 20,164
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,164
PA.
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I’ve never done it but our good friend and transmission builder recommended putting a quart of oil in transmissions. It may be worth giving him a call.
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: 46re fluid
[Re: A727Tflite]
#3134158
04/01/23 12:59 PM
04/01/23 12:59 PM
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Joined: Sep 2003
Posts: 19,366
north of coder
moparx
"Butt Crack Bob"
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"Butt Crack Bob"
Joined: Sep 2003
Posts: 19,366
north of coder
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take this for what it's worth, which ain't much........... my wife's 94 concorde, which is a front drive, the converter liked to hunt between lock up and unlock at a steady 2000rpm. i don't know where i heard or read about this, but i dumped in a bottle of rear gear clutch additive. i think it was the yukon brand stuff, but i'm not sure. anyway, the converter lock/unlock/shudder, whatever it was, was gone the first drive, and hasn't returned in over three years. just my experience in life. your mileage will vary. 
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Re: 46re fluid
[Re: B1MAXX]
#3134276
04/01/23 08:19 PM
04/01/23 08:19 PM
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Joined: Mar 2011
Posts: 3,069
Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,069
Michigan
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yeah, I was thinking the same thing. The trans shifts fine and all that, I drive it every day. but the lock up is funny, and it is throwing the no lock up code.
The trans was rebuilt about 6 years ago and the rear clutches were toast. The line pressure was way low with a port test prior to tear down and found the converter valve partially ejected due to a broken retainer, its a little sheetmetal piece that holds the valve and spring in and at rebuild I put the upgraded retainer in it which does away with the little sheet metal thingy If that part was on the top of the valve body it was the boost valve. As for adding engine oil - the RE/RH family of transmissions do not have PWM solenoids to actuate and control lockup like the FWD stuff does. Two different worlds. If it’s setting 1776 code there are quite a few things that will set that code.
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Re: 46re fluid
[Re: B1MAXX]
#3134463
04/02/23 02:23 PM
04/02/23 02:23 PM
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Joined: Mar 2011
Posts: 3,069
Michigan
A727Tflite
master
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master
Joined: Mar 2011
Posts: 3,069
Michigan
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The solenoids were not replaced, the valve body was not disassembled.
I was thinking the reman converter was just a piece of chit. and it was the reason for the non lock up.Which is why I was asking about fluid fixes.
It has approx.30,000 miles since rebuild.
now I am thinking I should pull the solenoids and check the screens. And possibly replace?
I also had a caravan that set this code and put a new solenoid pack on it and it didn't fix that one so I have lost faith in the failing solenoid stuff. I considered that one a converter issue also, being a stock one with 200.000 on it we drone it another 75,000 with the light on. Unless I missed something you do not specify if you actually get lockup or not. You said it shifts funny. Drive it in third gear - OD off and see if it drops engine speed of approx 200 Rpm up a slight grade after it gets in to 3rd. If it’s does then try it in 4th. If it’s does then you have lockup. If it does in 3rd but you get no OD then that’s different animal. Need way more info.
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Re: 46re fluid
[Re: d-150]
#3134655
04/03/23 07:44 AM
04/03/23 07:44 AM
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Joined: May 2005
Posts: 1,966
Apollo, PA.
B1MAXX
OP
top fuel
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OP
top fuel
Joined: May 2005
Posts: 1,966
Apollo, PA.
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The vehicle shifts perfectly. for the 3rd time!  I drive it everyday! there is no lock-up!
Last edited by B1MAXX; 04/03/23 07:53 AM.
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Re: 46re fluid
[Re: B1MAXX]
#3135531
04/05/23 10:20 AM
04/05/23 10:20 AM
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Joined: Jun 2008
Posts: 1,822
Colorado
denfireguy
top fuel
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top fuel
Joined: Jun 2008
Posts: 1,822
Colorado
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There are TSBs on Lockup Shudder out there. It is usually not a fluid issue. The Mopar parts to fix this problem has not been available for years. Transgo shift kits do not address the problem. I found another brand that replaced the valve spring on the lock accumulator and it fixed the issue. This was on a A999 lockup transmission I put in my Cuda. I wanted it more for the lower first gear ratio and the extra clutch and frictions over the 904. I am using ATF +4 with no issues.
2014 Ram 1500 Laramie, 73 Cuda
Previous mopars: 62 Valiant, 65 Fury III, 68 Fury III, 72 Satellite, 74 Satellite, 89 Acclaim, 98 Caravan, 2003 Durango
Only previous Non-Mopar: Schwinn Tornado
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Re: 46re fluid
[Re: denfireguy]
#3135535
04/05/23 10:37 AM
04/05/23 10:37 AM
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Joined: Jan 2003
Posts: 74,979
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,979
U.S.S.A.
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There are TSBs on Lockup Shudder out there. It is usually not a fluid issue. The Mopar parts to fix this problem has not been available for years. Transgo shift kits do not address the problem. I found another brand that replaced the valve spring on the lock accumulator and it fixed the issue. This was on a A999 lockup transmission I put in my Cuda. I wanted it more for the lower first gear ratio and the extra clutch and frictions over the 904. I am using ATF +4 with no issues. The A999 design of the valvebody and the 46RE are very different , especially in how it applies lockup.
running up my post count some more .
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Re: 46re fluid
[Re: B1MAXX]
#3135566
04/05/23 11:58 AM
04/05/23 11:58 AM
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Joined: Mar 2010
Posts: 1,061
Atlanta, GA
mgoblue9798
super stock
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super stock
Joined: Mar 2010
Posts: 1,061
Atlanta, GA
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This is a band aid but it works and will buy you some time. If it doesn't stop the shudder after first hundred miles add the second tube. I have used it with great results in over 1/2 dozen vehicles. shudder fix
https://www.amazon.com/Lubegard-19610-Tranny-Instant-Shudder/dp/B00337DUEU/ref=sr_1_2?crid=2Z3MHHJFOOEB&keywords=torque+converter+shudder+additive&qid=1680710186&sprefix=torque+converter+shudder%2Caps%2C275&sr=8-2
Last edited by mgoblue9798; 04/05/23 12:00 PM.
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