2007 Chrysler Town and Country Torque Converter or Just Chr

Tiny
JULIE2007TC
  • MEMBER
  • 2007 CHRYSLER TOWN AND COUNTRY
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 90,000 MILES
My torque converter occ. Feels a little rough during lock-up in final drive, but NO codes. I had it at two repair shops, one says it will get worse before it goes, it won't leave my stranded, just wait. The other shop recommends a new torque converter/transmission for approx. $2500. Is there any other alternatives? Shouldn't it have coded if there really was a problem? Anyone tried Dr. Tranny's Shudder Fix with good or bad results? Thanks!
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Monday, November 9th, 2009 AT 10:36 PM

4 Replies

Tiny
BMRFIXIT
  • EXPERT
I would have the tranny fluid and filter flushed and changed
making sure the correct type of fluid used
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Friday, November 13th, 2009 AT 6:24 PM
Tiny
JULIE2007TC
  • MEMBER
Thanks for the reply. We just changed the fluid, dropping the pan so only about half, and changed the filter about 3 weeks ago. We replaced it with ATF+4 Full Synthetic, approx. 5qts. The previous change appeared to have also been done with synthetic. We also had the computer re-flashed. At that time the shop said there was nothing wrong with our transmission. Two weeks later my husband was doing some preventative maintenance and disconnected the battery for about 30 mins. We thought we had accidentally blanked the computer. We took it back to the shop, no codes except the battery disconnected. The shop test drove the van as they had done just two weeks before and now we suddenly have a torque converter issue. Is it just the computer re-learning or something to do with having the battery disconnected. I admit there is an occ. Roughness during lock-up now, how did this happen in just two weeks? Shouldn't it have coded if there was a problem? I also noted on forums that other 2007 Chrysler owners had similar problems, had the torque converter replaced and still had the problem? Is it really the torque converter, the computer, or just because it's a Chrysler?
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Friday, November 13th, 2009 AT 8:29 PM
Tiny
BMRFIXIT
  • EXPERT
Control of the transaxle is accomplished by fully adaptive electronics.
Optimum shift scheduling is accomplished through continuous real-time sensor feedback information provided to the Powertrain Control Module (PCM) or Transmission Control Module (TCM).
The PCM/TCM is the heart of the electronic control system and relies on information from various direct and indirect inputs (sensors, switches, etc.) To determine driver demand and vehicle operating conditions.
With this information, the PCM/TCM can calculate and perform timely and quality shifts through various output or control devices (solenoid pack, transmission control relay, etc.).

Disconnecting the battery will cause PCM and TCM to lose memory
and will cause Driveability concerns
TCM have to relearn shift and recalibrate itself
the use of a scanner is needed to perform a quick learn procedure
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+3
Friday, November 13th, 2009 AT 8:57 PM
Tiny
JULIE2007TC
  • MEMBER
Thanks, you have been very helpful!
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Saturday, November 14th, 2009 AT 3:36 PM

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