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Car Forum / Dodge / Dodge Trucks / March 200747RE failure update.
Thanks to all who responded so far. Last I posted was that the transmission was not engaging. This was based on my experience when I was sitting on a hill.The truck kept rolling back when in any gear. Last night I tried to drive it again. This time I am on flat surface. When I press on the accelerator, the truck tried to move. It was like there was not enough power to move it. Now what could this signify? For those who dont know, it's a 2000 CTD. > Thanks to all who responded so far. > [quoted text clipped - 9 lines] > > For those who dont know, it's a 2000 CTD. What I learned from my whole process was that I honestly needed a FSM and a hydraulic pressure gauge on ports to read exactly what the transmission was trying to do and when. http://www.allpar.com/mopar/transmissions/torqueflite-tom-hand.html If I'm not mistaken, the basis for your transmission is the same as the old 727 plus electronics and the OD unit on the end....so the diagrams on the above listed website helped explain to me the logic behind the deal. Good luck and I hope a transmission rebuilder starts cruising this ng. Sounds as though his rear clutch in the main transmission is gone. However, since the direct clutch in the OD is applied by a large spring, its possible that the direct clutch in the OD is shot as well. From his description of odd behavior, I'd bet on the OD direct failing, but the rear clutch in the main trans is a close second in my long distance opinion. Has any of the electronics been checked for codes or failure?  SignatureMax Join www.devilbrad.com and find out what free exchange of info is all about. "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) >> Thanks to all who responded so far. >> [quoted text clipped - 24 lines] > behind the deal. Good luck and I hope a transmission rebuilder starts > cruising this ng. > Sounds as though his rear clutch in the main transmission is gone. > However, since the direct clutch in the OD is applied by a large spring, [quoted text clipped - 4 lines] > > Has any of the electronics been checked for codes or failure? No codes. If the OD had failed, then why does it not run in any other gear including reverse? Personally I am starting to think it is a lack of fluid flow due to the symtoms: Not shifting up when it was moving and low trans temp at the sensor. Of coure eventually it kept shifting down and got to second before I just had to pull over. After that it would not move anymore. 15 years ago I did rebuild a trans from a 79 chrysler I had. That was a different item. The 47RE is about twice the size and a lot more stuff connected to it. And if I had done a crappy jpb of it, I could have just run down to the salvage yard and gotten a different trans for $125. I will not be able to pull this thing alone, if I had to and I don't think I will find that many RE47s at a junk yard. In this case I would rather know what I should be looking for before I start digging and make possibly make things worse. On the old Crysler the trans was slipping. I knew the problem with that. I went and got a book that covered taking the whole think apart and bought a rebuild kit for only $30 at a trans part shop. Easy enough to just replace a few pieces that it came with. >>> Thanks to all who responded so far. >>> [quoted text clipped - 24 lines] >> behind the deal. Good luck and I hope a transmission rebuilder starts >> cruising this ng. > If the OD had failed, then why does it not run in any other gear including > reverse? No, he said the OD direct clutch. Think of the OD unit as a two-speed transmission. There's one speed that's 1:1 - that's the direct clutch. The second speed is the .69:1 overdrive. That's the overdrive clutch. One or the other has to be applied to get power to transfer through the unit. > Personally I am starting to think it is a lack of fluid flow due to the > symtoms: Yes, that's certainly a possibility. That's what pressure tests are for. Get a set of pressure gauges (100psi and 300psi), and appropriate fittings (they're all 1/8" NPT), and a service manual, and perform some pressure tests. After checking the fluid level, of course. > 15 years ago I did rebuild a trans from a 79 chrysler I had. > That was a different item. The 47RE is about twice the size and a lot more > stuff connected to it. Not really. Minus the overdrive unit, and the electronics on the valve body, it's basically the same transmission. Hey Max, could a blown TC cause this? My Nissan had the same problem and that's what it turned out to be. SignatureIf at first you don't succeed, you're not cut out for skydiving > Sounds as though his rear clutch in the main transmission is gone. However, > since the direct clutch in the OD is applied by a large spring, its possible [quoted text clipped - 32 lines] > > behind the deal. Good luck and I hope a transmission rebuilder starts > > cruising this ng. A failed TC could cause this, certainly. But it would be an mechanical malfunction, since any "disintegration" of the interior would likely lock the TC up. It might physically shove the TCC closed if given the chance. However, if he lost the stator roller clutch, that might exhibit symptoms similar to what he's got. That would allow the stator to reverse its rotation, killing the fluid flow, and thus power transfer. The first thing I'd do would be to check the hydraulics as TomL suggests, then check the pan for debris. SignatureMax Join www.devilbrad.com and find out what free exchange of info is all about. "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) > Hey Max, could a blown TC cause this? My Nissan had the same problem and > that's what it turned out to be. [quoted text clipped - 45 lines] >> > behind the deal. Good luck and I hope a transmission rebuilder starts >> > cruising this ng. >> Thanks to all who responded so far. >> [quoted text clipped - 24 lines] > behind the deal. Good luck and I hope a transmission rebuilder starts > cruising this ng. I have looking for a diagram of the 47RE without luck. That is a nice block diagram, but specific parts would help me so I can find out where the possibly stuck valve is. Just now I went again and tried to drive it. I bit a reving and it started moving and driving. I stopped after 10 feet and put it in reverse. Started slow like forward, but this time in reverse it was, I guess the best was to describe it was, jumping or lurching back, but it did go back and I stopped in original spot. Tried forward again and it refused to go forward again. This makes me really think some valve is stuck, but what I don't know. > Thanks to all who responded so far. > [quoted text clipped - 9 lines] > > For those who dont know, it's a 2000 CTD. Back in 1999 I fried an aftermarket torque converter in my '96 3600 CTD. The clutch material shredded and stopped up the filter. After it had been shut off awhile the shredded clutch material would drop off the filter and it would move for bit until fluid flow brought more clutch material up to stop up the filter again. Maybe you have a similar problem? > Just now I went again and tried to drive it. > [quoted text clipped - 21 lines] >> >> For those who dont know, it's a 2000 CTD. |
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