Page 1 of 3 1 2 3 >
Topic Options
#2409956 - 11/27/17 11:01 PM Having the common tranny issues with 46re, need guidance
Adam71Charger Offline
pro stock

Registered: 06/01/13
Posts: 1521
Loc: Tacoma, Washington USA
I just bought a 2001 SLT 2WD 5.9 Durango for cheap cheap because it is experiencing tranny issues and CTM electrical problems that the PO didnt want to deal with.

I know this issue Im having is very common on these 46re Durangos/Rams/Dakotas, so I could use some guidance in solving it, thank you in advance!

My particular problem is the tranny only goes into 3rd when put in D. I believe it's called limp mode. You can manually shift down to 2nd, but no matter what you do it will not go into 1st or 4th, period. If you put it into drive, it goes straight to 3rd and stays there, no downshift to 2nd when you floor it. You can manually put the lever down into 2nd, and it will go into 2nd, and 2nd is where it will stay no matter what. You can put it back into D and it goes to 3rd. That is all you can do for forward gears. Reverse works fine.

I have read numerous posts about the governor/transducer, OD solenoid, output speed sensor, corroded connections, bad grounds, and frayed/shorted wires etc etc. I just dont know where to begin.

This Durango is very nice, smooth running 360, good interior, and I bought it for next to nothing so I dont mind putting some $ into the trans to make it trouble-free and reliable. Is there a standard combination of new solenoids/connectors/relays/harnesses/wires that can be put in all at once to eliminate all the common problems at once?


Here are the codes I pulled today:

P0753 A/T 3-4 Solenoid/Transmission Relay Circuit Failure

P0743 A/T Torque Converter Clutch Solenoid Circuit Failure

P0720 A/T Output Speed Sensor - Low output Above 15 MPH

P1764 A/T Governor Pressure Sensor Signal Too Low

P1765 A/T Transmission Relay Circuit Malfunction


Where should I start?

Top
#2409986 - 11/28/17 12:26 AM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
calrobb2000 Offline
pro stock

Registered: 01/20/03
Posts: 1529
Loc: s. e. pa.
hi

1 erase codes and drive !

2 if codes reapear pull pan and look at fluid condition

adjust bands new filter see how much dirt is on magnet ?

may need solinoid kit replaced if trany is fairly clean

lots of dirt means most likely needs rebuilt !

Top
#2410012 - 11/28/17 05:45 AM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
ruderunner Offline


Registered: 12/18/14
Posts: 1981
Loc: ohio
A good close look at the wiring harness would be a start. I'd toss in a known good tcm relay too.

Do you have a scanner that can read data or just codes?

Top
#2410188 - 11/28/17 01:56 PM Re: Having the common tranny issues with 46re, need guidance [Re: calrobb2000]
cudaman1969 Offline
master

Registered: 01/25/04
Posts: 4538
Loc: fredericksburg,va
Originally Posted By calrobb2000
hi

1 erase codes and drive !

2 if codes reapear pull pan and look at fluid condition

adjust bands new filter see how much dirt is on magnet ?

may need solinoid kit replaced if trany is fairly clean

lots of dirt means most likely needs rebuilt !

Good advice. I'm buying a Ram Van (2001) today with same issue. Owner said scan showed solenoid problems. Trans fluid smells burnt and is black so I'm going to drop the pan, adjust bands and change fluid-filter, got my fingers crossed this works.


Edited by cudaman1969 (11/28/17 01:56 PM)

Top
#2410201 - 11/28/17 02:26 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
Adam71Charger Offline
pro stock

Registered: 06/01/13
Posts: 1521
Loc: Tacoma, Washington USA
Just codes. There's the wiring harness on the outside, is there also one on the inside behind the valve body?

Top
#2410273 - 11/28/17 05:02 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
Transman Offline
super stock

Registered: 03/27/11
Posts: 798
Loc: Michigan
Circuit failures are just that - electrical faults. They may cause a trans failure but not the other way around. There is a main harness on the outside on RE and a harness inside that handles governor pressure, OD and lockup. On the RH there is almost the same internal harness for OD and lockup but the governor is like the old 727, no governor solenoid or transducer. Dropping the pan and seeing burnt fluid and expecting to resurrect the unit by adjusting the bands and changing the fluid and filter is expecting a lot. You may get lucky - for a short while.


Edited by Transman (11/28/17 05:04 PM)

Top
#2410397 - 11/28/17 08:18 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
kenworth_goose Offline
top fuel

Registered: 05/13/06
Posts: 1857
Loc: ky.
If it's going into limp mode that is 2nd gear not third. If it feels like it's dropping a gear when you shift it lower is because it's probably binding up between gears. Not good! If there is a fair amount of junk in the pan don't waist your money on electronics, rebuild it and then put new electronics in it.

Top
#2410400 - 11/28/17 08:23 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
Grizzly Offline
master

Registered: 08/24/05
Posts: 4900
Loc: at work
*Edit* IGNORE THIS FOR THE TIME BEING^^^^^^^^^^^^^^We'll overhaul it when it's ready to be overhauled. rolleyes




Adam, find anything with a wire connected to the trans and unplug, blow out with a can of electrical cleaner and plug 'em all back in again. Unhook the battery for an hour and connect it back up and go for a drive.

What's the speedo needle doing? Is it bouncing/taking awhile to register, or is it normal?

Start with the easy stuff first, I wanna know what that output speed sensor code is doing on there............. work


Edited by Grizzly (11/28/17 08:26 PM)

Top
#2410431 - 11/28/17 08:58 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
Transman Offline
super stock

Registered: 03/27/11
Posts: 798
Loc: Michigan
RWD RE units default to third gear. 41TE and 42LE default to second gear.


Edited by Transman (11/29/17 03:15 AM)

Top
#2410874 - 11/29/17 04:20 PM Re: Having the common tranny issues with 46re, need guidance [Re: Transman]
dogdays Offline
I Live Here

Registered: 01/20/03
Posts: 16231
I know it's a completely different manufacturer but on my 4L80E when it went into limp home mode it needed a new speed sensor. The factory service manual had a troubleshooting chart and it led me right to the problem. It was specific enough that it pointed out which one needed to be replaced. Steps to repair:
1. buy replacement
2. crawl under the vehicle
3. unplug electrical connector
4. remove hold down bolt
5. pull sensor
6. replace sensor with new
7. replace hold down bolt
8. connect new sensor
9. crawl out from under the vehicle

I hope your fix is similar.

R.

Top
#2410968 - 11/29/17 06:48 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
I_bleed_MOPAR Offline
master

Registered: 01/20/03
Posts: 7913
Loc: Dacula, GA
Or you can do like I did on my '00 Durango 5.9 and convert it to a 5 spd. drive


Tim
_________________________
'71 Charger McCandless-built 383/727
'00 Durango 5.9 w/ 5 spd. conversion
'16 Challenger SXT (wifes car wink )

Top
#2410987 - 11/29/17 07:24 PM Re: Having the common tranny issues with 46re, need guidance [Re: I_bleed_MOPAR]
Grizzly Offline
master

Registered: 08/24/05
Posts: 4900
Loc: at work
Originally Posted By I_bleed_MOPAR
Or you can do like I did on my '00 Durango 5.9 and convert it to a 5 spd. drive


Tim


Definitely a better way to go than to rebuild that POS Dodge automatic.

One day, (it'll take a Brain Surgeon) I hope someone will figure a way to run a 545rfe behind a Magnum.

By the way, what did you use for a flywheel on the 5.9 to do the swap?

Top
#2411313 - 11/30/17 12:29 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
roadrunninMark Offline
top fuel

Registered: 11/25/03
Posts: 2102
Loc: GA
You can run the NAG1 too, contact Sound German Automotive for the stand alone controller.

I would check the 3-4 accumulator spring after everything else as well. If you have the pan and filter down, you are almost there. 5 bolts I believe hold a small plate under the spring. These springs break and cause shifting problems. They also cause snap ring breakage in the clutch pack drums. If it is broken, you can get the diesel version.

Top
#2411405 - 11/30/17 03:47 PM Re: Having the common tranny issues with 46re, need guidance [Re: roadrunninMark]
360view Offline
master

Registered: 01/18/06
Posts: 4505
Loc: USA
Originally Posted By roadrunninMark
You can run the NAG1 too, contact Sound German Automotive for the stand alone controller.


This is news to me.

Could the Sound German Automotive
stand alone controller
also be used on an earlier OBD-I 1995 vehicle
like to replace a 46RH
with a WA580 auto trans?

https://www.allpar.com/mopar/transmissions/NAG1-WA580.html

Replacing a
46RH with 3.21 ratio diff
With a WA580 with 2.76 diff
certainly seems to be an upgrade
Since torque capacity is 420+ ft-lbs
First gear crawl speed would also be superior.

Top
#2411416 - 11/30/17 04:03 PM Re: Having the common tranny issues with 46re, need guidance [Re: Grizzly]
I_bleed_MOPAR Offline
master

Registered: 01/20/03
Posts: 7913
Loc: Dacula, GA
Originally Posted By Grizzly


Definitely a better way to go than to rebuild that POS Dodge automatic.

One day, (it'll take a Brain Surgeon) I hope someone will figure a way to run a 545rfe behind a Magnum.

By the way, what did you use for a flywheel on the 5.9 to do the swap?


RockAuto- '01 1500 5.9 flywheel, HD clutch assy. that was optional for 1500 and '01 Dakota V6 donor truck, new Dakota clutch hydraulics.



Tim
_________________________
'71 Charger McCandless-built 383/727
'00 Durango 5.9 w/ 5 spd. conversion
'16 Challenger SXT (wifes car wink )

Top
#2411429 - 11/30/17 04:37 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
roadrunninMark Offline
top fuel

Registered: 11/25/03
Posts: 2102
Loc: GA
360, Yes, you can use the NAG1 even behind a LA small block. Your old trans set up would not be used, Sound German would be able to tell you what you need better than I could. I just talked to them before about putting behind my 71 318. I went with a 42RH instead as it was a lot cheaper at the time. The controller is a little pricey (about 1200) but if you get the trans cheap enough it may be worth it compared to a complete rebuild of a 46RH. Plus the gearing is a huge improvement. You are exactly right about the gearing. Send them an email and they will get the info you need.

Top
#2411441 - 11/30/17 05:08 PM Re: Having the common tranny issues with 46re, need guidance [Re: roadrunninMark]
cudaman1969 Offline
master

Registered: 01/25/04
Posts: 4538
Loc: fredericksburg,va
Originally Posted By roadrunninMark
360, Yes, you can use the NAG1 even behind a LA small block. Your old trans set up would not be used, Sound German would be able to tell you what you need better than I could. I just talked to them before about putting behind my 71 318. I went with a 42RH instead as it was a lot cheaper at the time. The controller is a little pricey (about 1200) but if you get the trans cheap enough it may be worth it compared to a complete rebuild of a 46RH. Plus the gearing is a huge improvement. You are exactly right about the gearing. Send them an email and they will get the info you need.

There is a whole LOT more to it than just a controller. Basicly a total rehab of the car to fit, then the problem of the output flange, speed censers, converter options, the list goes on and on. There are better options out there.

Top
#2411442 - 11/30/17 05:19 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
srunge55 Offline
mopar

Registered: 07/15/05
Posts: 487
Loc: St Louis, MO, USA
I was having similar problems with my 47RE and replaced the governor solenoid, sensor, accumulator spring and speed output sensor in the trans and all fixed now. Pretty easy job but you have to drop the pan. Here is a link to the kit for the 46RE. I also added a drain plug to the pan in case I ever need to drop the pan again.

http://www.cascadetransmissionparts.com/46regovernorpressureservicekit2000up.aspx

Top
#2411446 - 11/30/17 05:21 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
srunge55 Offline
mopar

Registered: 07/15/05
Posts: 487
Loc: St Louis, MO, USA
Also here is a nice video on the procedure to replace the tranny parts.

https://www.facebook.com/cascadetransmissionparts/videos/1039161212861907/

Top
#2411975 - 12/01/17 06:24 PM Re: Having the common tranny issues with 46re, need guidance [Re: Adam71Charger]
Adam71Charger Offline
pro stock

Registered: 06/01/13
Posts: 1521
Loc: Tacoma, Washington USA
I had a moment today to recheck fluid, connections and battery. I am getting a filter and gasket and will remove pan when i get it.

I unhooked the battery for about 20 minutes and unhooked both connectors and cleaned the connectors and the battery terminals really well. I noticed my battery is 6 years old so I probably should replace that.

I check the tranny fluid through the dipstick tube again and it was clean and didn't smell bad. who knows the PO may have change the fluid before he sold it.

In the relay box under the hood I noticed that my trans relay has five prongs but it sits in a but it sits in a 4 terminal base, could i possibly have wrong relay?

I unhooked the connectors from the trans and cleaned them out and removed about 3 in of sheathing to see if any of the wires were frayed. They were all intact.

when I reconnected everything and the battery I started the Durango and within seconds the check engine light came back on

since I have to drop the pan anyways I think I'll just get all the parts I may need and if the fluid doesn't have a bunch of chunks in it I'll just go ahead and install the parts

Top
Page 1 of 3 1 2 3 >

Advertisement
Forum Stats
25,535 Registered Members
32 Forums
194,020 Topics
2,266,123 Posts

Most users ever online: 1,424 @ 06/20/18 07:18 PM
Moparts Newest Topics
98 T&C electrical issue
by BH27G1B
10/19/18 12:20 AM
So what have you done with your music CDs?
by MoparKansas
10/18/18 11:57 PM
1971 Duster 340 cool factor?
by 340wedge
10/18/18 11:18 PM
decoding truck numbers
by hillsborophill
10/18/18 11:04 PM