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  1. V

    P0743

    Everything seems to be normal. It shifts good on lower range. When I am at 60 and lightly hit the brake, it will increase a couple hundred RPM.
  2. V

    P0743

    Well, I have been getting bad gas mileage, so I bought a scanner. I don't have a check engine light on anymore, but when I scan my truck I get P0743, and P0753 now. I clear the codes and they will come back. All three solenoids are showing the correct ohms from the computer and the harness. Any...
  3. V

    P0743

    Just to update this. I took off the pan and measured at the solenoid, still open circuit. I removed the solenoid and tested it, it still tested open. So the lockup solenoid was bad. The new solenoids I bought all tested around 12.6, I replaced all three while I was in it, and problem solved. So...
  4. V

    P0743

    I have a question regarding this code, if anyone can chime in. I have read through all the threads regarding this, but I still can't figure this one out. I tested my solenoids at the TCM and at the dipstick connector. I show the correct OHMS on two of them, but on the Lock-out solenoid I am...
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