QuestionQUESTION: Hi Roland. I decided to go out and by a Code Reader. Lucked out one was on sale. I came up with the following codes.P0732, P1782, P1784 and P0700. I don't have a Manual to look up the placement of the fuses in the fuse block. You told me where to find them, but without that diagram, I don't know which one is where. You said 2, 10, 12 and underhood 15.
Couple of things a didn't mention in my message before. My Son had to rewire the plug on the speed sensor because the one we had had pins in them and the one on the replacement tranny had slots. He got all the wire right because of color coded, but there were 3 that didn't match and he had to guess.
The other thing was, I saw water come out of the Solenoid Pack when He was putting it on. It wasn't much and he was going to change out the Filter. I asked Him when he change the Filter, did He see water anywhere, He said no. I wonder if we take that Pack off and blowing out, it might work.
Please when your explaining the codes to me. Try and spell out the terms like TCM.. I seen them on the internet and don't know what that means. Thanks for all your help.
Dan
ANSWER: Hi Dan,
These codes don't bode well for the replacement transmission. The 0732 says the there is slippage inside the transmission which could be caused by many different possible faults:
slipping underdrive clutch, underdrive seal leakage, sticky underdrive accumulator seals, defective underdrive and pressure switch assembly, 2-4 seal leakage. The 1782 and 1784 point to the 2-4 pressure switch circuit and Low-reverse pressure switch circuit (both located in the solenoid pack) and those could be due to wiring problems between the TCM and the solenoid pack, the solenoid pack itself, a problem with the solenoid switch in the valve body inside the transmission, loose valve body bolts, a plugged trans filter due to internal transaxle damage or torque converter failure, or finally a defective TCM. Because no drive is occuring at all, I would wonder most about the torque converter being failed, but all the other codes are troublesome to getting this transmission to work. Some of the codes could be due to the old transmission if you haven't disconnected the battery after you removed it, so you might try that, try to run it, and see which codes are present after that because removing the battery clamp will erase all present codes except a new 1684 (which reports the battery was disconnected recently).
Each speed sensor has but 2 wires, so I am not sure what to make of the wiring guesswork that you described. Can by be more specific about which plug was involved? Also, what year vehicle did the donor trans come from? Was there any known history of its condition when you bought it?
I wouldn't know what to make of the history of water in the solenoid pack and was this the old one or the new one?
The TCM is the transmission control module (computer) and it is mounted on the passenger side inner fender.
Roland
history:
1997 3.8 FWD Chrysler Town and Country Van. I replaced the Transmission and it still doesn't go into gear. Could it be the Control Module located on the transmission? I don't know what the codes are or how to bring them up, but before I go out and buy a very expensive Module, I would like to know if I can find out if it's bad.
ANSWER: Hi Dan,
There is a plug under the dash on the left of the steering wheel into which a code reader is inserted and that will bring up the 4-digit codes that may tell us what is wrong. Disconnect the battery for a minute or so and then reconnect and drive it around for few short trips before having the codes read. You can get a free readout at an Autozone parts store, or for under $40 at an independent shop. Tell me the numbers and we can go from there to see what is next. The trans codes in the model year can only be obtained via a plug-in reader.
Roland
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QUESTION: Thanks for your quick response. I mentioned that the Van doesn't go into any gear. Driving is impossible. Would that indicate that the Control Module is bad or should I be looking somewhere else.
Answer: Was the torque converter also changed out? If not then that may be the problem.
Under most situations the trans will engage and drive in 2nd gear because that is the default "limp mode" when something is wrong internally. But if the converter output turbine wouldn't turn that would cause a no movement. If there is no debris in the oil pans of the replacement trans, then you would want to remove the valve body of the transmission and clean/inspect its parts. Then check the pressures via the ports on the trans for the internal hydraulic pressure in the various circuits. If there is debris, then the trans has to be rebuilt.
I doubt it is the TCM. Is there anyone you can borrow an OBD-II code reader from? That would be the most efficient way to find out what is wrong.
Roland
QUESTION: Hi again. You said something about the torque converter might not be in place. My Son just told me that when he was bolting the fly wheel to the converter, the converter moved about a 16th of n inch toward the engine. In my days of changing rear wheeled transmissions, the converter was not suppose to move. Is it the same case for the front wheel drive tranny? As I said before, no matter what gear I put it in...nothing..no movement at all.
Thanks again for all your help
ANSWER: Hi Dan,
If the old and replacement trans's neither would drive I would suspect the converter. But on the detail you menitoned I am not familiar. Have you verified the fuses 2,10,12 in the under dash fuse box. and fuse 15 in the underhood box are OK? A code reader would be helpful to see what the TCM thinks is the matter. You might try the 'on-off-on-off-on and leave on, in 5 seconds or less' to see if any code numbers show up on the odometer window, but that is unlikely. You probably need to plug in a reader.
Roland
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QUESTION: HI Roland,
I might not be explaining myself correctly. Before you install a Transmission, you have to turn the Toque Converter several time clock wise to seat it into the Transmission. It should not be loose or fall out. Am I correct on that. If so it may appear that while My son was installing it to the engine, it came loose again. When he was bolting the four bolts up, he said the Torque Converter came forward towards the fly wheel. Only about a 1/16 of an inch. The Transmission was already bolted in place. I hope you can understand this time.
Thank you for your time. Yo have been very helpful so far. I'm not where the Van is, so I can't check the fuses.
Answer: Hi Dan,
I can't understand why 1/16 of an inch would disable the function of the torque converter. Maybe I midlead you on that as the focal point for your 'no drive'. I would expect though that if it wasn't spinning that you would not have any internal pressure in the hydraulic circuits because the torque converter also 'drives' the transmission pump. So you could verify whether or not you have trans fluid pressure at one of the test ports as a proof of at least the internal rotation of the input shaft of the transmission. If that is happening than the 'no drive' would not be related to the torque converter.
I still would want to know of any fault codes that the tcm might show that would explain the no drive. If you don't know the history of the replacement transmission then checking for debris in the pans, and if that is absent, removing and cleaning the valve body is suggested by the manual when you have a 'no drive'.
Roland
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QUESTION: The Tranny came out of a 1997 T&C. The Control Module I said the water is coming out was located on the front side of the transmission and has a big plug attached to. The other sensor I said He had to rewire is also located on th front of the transmission, but down under the shifting lever. It has several wires that are color coded. I do know they have a convert plug to convert a slotted plug back to a pin plug. None were available at the time.
AnswerHi Dan,
There shouldn't be water in the solenoid pack unless perhaps the transmission had been sitting in the rain with some plugs open to the environment. The plug that had to be re-wired is from the transmission range sensor, located inside the transmission and which signals where the shifter rod is rotated to by the cable that comes from the gear shift in the cabin. The TCM needs to know what gear you have selected and that sensor/plug is how it does that. All 9 wires are color-coded on the 10-pin plug, so let me know if you are uncertain about any of those locations/colors.
And was there a history about the transmission? Any guarantee/warranty in the sale?
Try the code erase/re-read and let me know.
Roland
