Jeep liberty transmission problem

Codes P0733 and P0736 on a 2002 Jeep Liberty refer to transmission-related issues. Here's what each code indicates: P0733 - Gear 3 Incorrect Ratio: This code indicates that the transmission is not shifting into the third gear correctly. It suggests a problem with the gear ratio between the input and output shafts of the transmission when the third gear is engaged. This could be caused by issues such as a faulty transmission solenoid, a worn or damaged gear, low transmission fluid level, or internal transmission problems. P0736 - Reverse Incorrect Ratio: This code indicates that the transmission is not shifting into the reverse gear correctly. It suggests a problem with the gear ratio between the input and output shafts of the transmission when the reverse gear is engaged. Possible causes could include a faulty transmission solenoid, a damaged or worn reverse gear, low transmission fluid level, or internal transmission issues.

Process of elimination sounds like a nightmare go for cheapest part first

obviously refers to auto trans , could just need the trans fluid level topping up or even changing , if this does'nt resolve the problem then a more in depth diagnosis would be required at a repair shop as could be the ECU for example but do the fluid checks and go from ther ,keep me posted

PO 734 GEAR 4 INCORRECT RATIO
PO 751 SHIFT SOLENOID A PERF OR STUCK OFF
PO 761 SHIFT SOLENOID C PERF OR STUCK OFF

youll need a new or rebuilt transmission tahs the only fix,there gear ratio codes

P0732 FORD - Incorrect Second Gear Ratio
Transmission in second gear and the ECM detected an incorrect gear ration. This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows:

Torque converter slip ratio = A x C/B

A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes

If the actual gear position is higher than the position (2nd) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.

Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Incorrect transmission shifting

Possible causes
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit

Tech notes
Start by inspecting the transmission fluid level and condition, and change fluid if necessary.


Hope helps.

P0733=Gear 3 Incorrect Ratio
P0734=Gear 4 Incorrect Ratio,
your transmission is in "limp" mode,
Have the following sensors checked on the transmission,input sensor,output sensor,and speed sensor.
The transmission is not getting a signal from one of them,So it doesn't know how fast your going so it doesn't up shift.

faulty input speed sensor possible. sensors are fairly cheap and easy to install. no gaurentees because normally u will have more codes then just the 3-4 ratio with a faulty sensor but u may get lucky

Ratio codes generally indicate a pressure loss & slipping which the computer reads as a gear ratio problem. Likely you need a rebuild.

It means that your transmission is probably slipping check your fluids and have you transmission filter changed also change your plugs your check engine lite should go out. Please rate me any further assistance you can always ask me.