QuestionQUESTION: Hello, I have a 96 Grand Voyager SE, 3.3L V6, A604/41TE Transmission. 172,000 miles.
The engine in this minivan runs perfectly, the transmission, --- Continuous Limp mode.... This site explains the issue quite perfectly: - http://etereman.com/blog/fiat-transm...oure-not-alone
I have replaced the TCM & Solenoid, changed fluid and filter... No results - Recently a friend ( Mechanic ) ran a diagnostic test with the Autel Maxidas DS708 with the Chrysler Adapter attached http://www.amazon.com/Chrysler-Adapt.../dp/B00F06RKHU
No problem codes are being sent, all clutch parameters are within specified ranges, the scanner also shows the transmission shifting into 3rd and 4th (OD ), which it clearly is not. The van starts off in 1st, shifts to 2nd easily, it attempts to upshift to 3rd, I can feel it jumping a bit, then slips into neutral, I let off the throttle and it drops back into 2nd and that's where it stays until restart, reverse works without a problem. Mechanic recommended replacing the speed sensors, both input and output, I have ordered them from RockAuto...
Mechanic stated that if the sensors do not work, it could be a torque converter problem???
Can anyone offer some help, I have spent quite a bit of money and time on this.
I purchased this van in April of 2014, at the time the seller informed me that the transmission was rebuilt/replaced at the end of 2013.... The seller has passed away & I cannot locate the garage who replaced/rebuilt, or remanufactured the transmission.
I replaced the speed sensors today, no improvements, cleaned ground wires at transmission dipstick mount ( possible ground issue for no codes & dash gear indicator showing all gears lit from time to time )
I am desperate, money is now extremely tight, I can't spend anymore $$ on this unless I can find exact errors, over $500.00 so far, no results
All help is extremely appreciated!
ANSWER: Hi Michael,
I have two ideas:
Limp mode is accomplished by the transmission relay being deactivated. I would try 'jumping' the relay by removing it and put a jumper between the two inboard pins of the relay socket (30 to 87) and then try operating the vehicle. See what happens then and let me know.
I wonder whether the adapted Autel is capable of seeing all the possible trouble codes. It should be OBD-II unless it happens to be a flex fuel engine in which case it is still OBD-I for the model year '96, but if it does have a 16-pin data link connector that would suggest it is OBD-II. Doing a readout with a different code reader might result in the appearance of a 4-digit trouble code for the transmission.
I do have the '96 manual and there are 13 pages that show the wiring for the transmission and also describe the wiring of it in great detail. I can photocopy and postal mail that to you tomorrow. If you would mail me back four postage stamps to cover my costs that would be appreciated.
I understand your frustration and hope I can be helpful.
Roland
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QUESTION: Hi Roland, thank you for the response & info. The Transmission relay you refer to would be the EATX Shutdown Relay? - The fuse & relay center under the hood has 2 EATX relays, Shutdown & Backup, shutdown relay being smaller than the backup. Recently I swapped the backup relay with the cig & accy relay as they both have the same numbers, this didn't change anything. I have not swapped the shutdown, as there are only 3 of these identical in the relay panel, the other 2 being fuel pump, and auto shutdown relays.
I am not aware of how to determine which pins of the relay socket (30 to 87 ) to use a jump wire with. - As for the wiring, yes, I would appreciate a copy, and the return of the postage stamps is agreed without question. How do I send you my address?
*Note, the van does have the 16pin OBDII connector under the dash to the left of the steering wheel, I have the ELM SCAN 5 USB tool, unfortunately they do not have the software available for Chrysler. - Before replacing the TCM, another mechanic ran a test, didn't receive any codes, he stated that it was the solenoid, as you can see, that was not the issue.
Thanks again for your help
Michael ( Mike )
ANSWER: The back up lamp relay is not involved in the limp mode situation. The 30 and 87 pins of the trans relay are the two adjacent to fuse 4.
If you want to keep your address private, then tell me it after clicking on the private box choice in either a follow-up or a new question.
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QUESTION: Hi Roland, I found the pins shortly after I replied, I will be jumping the pins this morning before I leave for work.
AnswerOK,
But if the trans won't shift normally when jumped then I would remove the jumper and operate it in limp mode rather than to force it to shift when it doesn't want to do so. Also, I would not leave it "jumped" when not driving it as it will be drawing some current all the time.
Roland
