Originally Posted by rusty1fan2001
I have a 2001 windstar with p0734 trouble code can anyone help me with this and if anyone had the same problem and what is the solution
Hello and good day:
May I ask how you got this OBDII code?? the P0734 is a code related to the Transmission.
The Following codes should be looked for:
P0705 Transmission Range Sensor out of Self-Test Range or Shorted to Ground.
P0707 Transmission Range Sensor circuit Low Input.
P0708 Transmission Range Sensor circuit High Input.
P0712 Transmission Fluid Temperature Sensor circuit Input Low.
P0713 Transmission Fluid Temperature Sensor circuit Input High.
P0715 Turbine Shaft Speed Sensor circuit fault.
P0720 Output Shaft Speed Sensor circuit.
P0721 Output Shaft Speed Sensor circuit.
P0731 Improper Ratio for First Gear.
P0732 Improper Ratio for Second Gear.
P0733 Improper Ratio for Third Gear.
P0734 Improper Ratio for Fourth Gear
P0735 Transmission problems.
P0736 Improper Ratio for Reverse Gear.
P0741 TCC System Improper Mechanical Performance.
P0743 Torque Converter Clutch System Electrical failure.
P0746 Electronic Pressure Control Solenoid Performance.
P0750 Shift Solenoid No. 1 circuit.
P0751 Shift Solenoid No. 1 Performance.
P0755 Shift Solenoid No. 2 circuit.
P0756 Shift Solenoid No. 2 Performance.
P0760 Shift Solenoid No. 3 circuit.
P0761 Shift Solenoid No. 3 Performance.
70765 Transmission system problems.
P0781 1 to 2 Shift Error.
P0782 2 to 3 Shift Error.
P0783 3 to 4 Shift Error.
P0784 4 to 5 Shift Error.
I would strongly suggest you go to a trusted Transmission repair shop to have this looked into....also this may just be a simple Solendoid, or connection problem.