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Re: torque converter circuit
There is a simple fix... you can unplug it ( a shop can do that in about 1 minute or less.)
It has to be taken apart(transmission) to install a new module.. Unplugging it will get rid of the OVERdrive function.. meaning a little higher RPM at highway speeds.. but will be cheaper than a 1500+$$ job of removal and repair....
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It's normal that won't shift into 3rd and overdrive because you have transmission code it's a default mode
P0730 Incorrect Gear Ratio
P0742 Torque Converter Clutch Circuit Stuck On
P0218 Transmission Over Temperature Condition
you need to solve those codes first
The code PO742 indicates the torque converter clutch is stuck on.
The torque converter is what connects the engine to the transmission.
It engages and disengages according to signals from the pcm, to aid in
smooth shifting. There are a couple of things you can try. make sure trans. fluid is full, if thats ok check the 20 pin connector, located on left
side of car on top of transmission bell housing. Make sure there's no
corrosion or bent pins. If this clears the code your all set, if not you may
want to ask your mechanic and see what he/she recomends.
Hope this helps.
TORQUE CONVERTER CLUTCH SYSTEM STUCK ON.PROBLEM COULD BE PRESSURE REGULATOR VALVE IS STUCK.OR THE TCC FLUID CIRCUITS LEAKING OR ABNORMALLY LOW HIGH LINE PRESSURE.OR THE TCC RELEASE SWITCH CIRCUIT IS SHORTED TO GROUND.CHECK TRANSMISSION FLUID LEVEL.IF TRANSMISSION FLUID LOOKS REAL DARK LOOKING AND SMELLY .CHANGE THE FLUID AND FILTER.IF THIS DONT HELP ! YOUR PROBLEM COULD BE A BAD TORQUE CONVERTER CLUTCH SOLENOID OR INTERNAL DAMAGE INSIDE TORQUE CONVERTER.OR RESTRICTION IN OIL PASSAGES AND STOPPED UP OR BLOCKED TCC SCREEN.
This problem will cause car to stall either in gear and not moving and coming up to stop.To fix side cover of trans will need to be removed and new sensor put in for lock up torq converter..Hope this helps you And Have A Great day