2000 Chrysler Concorde Engine light is on (transmission pro

Tiny
JCH62686
  • MEMBER
  • 2000 CHRYSLER CONCORDE
Transmission problem
2000 Chrysler Concorde Automatic

My engine light has just turned on today. Per the manuel it is stating the light is part of an onboard diagnostic system called OBD II which monitors the emissions engine and transmission control systems. The trouble codes are: p0731, p0732, p0720, p0700. The transmission shifts into gear hard, and the speedometer jumps with out touching the throttle.
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Sunday, August 30th, 2009 AT 9:35 PM

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Tiny
JACOBANDNICKOLAS
  • EXPERT
The PO731 means that there is a discrpency between the speed of the output turbine of the trans and the speed of the wheels in 1st gear. There is a wide range of possible explanations ranging from too low a level of fluid in the trans all the way to internal damage to the first gear clutch that would require disassembly. In between are a range of possible fixes that involve just the solenoid box on the front side of the transmission or the fluid pump, etc. That would not require remove and rebuild of the trans. My suggestion would be to first check that the fluid is OK and if it low then get some ATF +4 from a Chrysler dealer to bring it just up to full, using a funnel and adding it to the dipstick tube. Don't overfill, and don't use anything other than the Chyrsler recommended/approved fluid.

THe PO732 is different. The first thing you want to do is try to reset the compuiter.

By removeing the neg calble for 5 min. And then hook it back up if no reselts.
Get it to a tranny shop and have them check the tranny with that code you are giveing me it means bad clutch. That would require a rebuild.

The PO720 deals with the vehicle speed sensor.

Based on what you have described, it could be many things. I recommend having it checked by a competant trans tech. This may get involved, or it may just be a bad vehicle speed sensor (VSS). Regardless, I don't want you to start throwing parts at it on a guess.
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Friday, September 18th, 2009 AT 7:55 PM

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