Had transmission rebuilt in 2006 taurus check transmission indicator now turns on code stated torque converter slipping transmission person found badoring on pump removed transmission again and replaced still getting check transmission another code with that dealing with key module not sure what that code was

The powertrain control module (PCM) monitors the difference between engine speed and transmission output speed. In D3 drive range with the TCC engaged, the engine speed should closely match the transmission output speed. In D4 drive range, with the TCC engaged, the TCC slip speed should be -20 to +50 RPM.
When the PCM detects excessive TCC slip when the TCC should be engaged, then DTC P0894 sets. DTC P0894 is a type B DTC.

TCC - torque converter clutch
Diagnostic Aids
• Bronze material found in the transmission oil pan may indicate stator shaft bushing wear. If bushing wear is suspected, inspect the stator shaft and the input, turbine, shaft for damage.
• Refer to Symptoms - Automatic Transmission for more information.
Do you have a scan tool ?

Install a scan tool.
Turn ON the ignition, with the engine OFF.
Important: Before clearing the DTC, use the scan tool in order to record the Freeze Frame and Failure Records. Using the Clear Info function erases the Freeze Frame and Failure Records from the PCM.
Record the DTC Freeze Frame and Failure Records.
Clear the DTC.
Important: It may be necessary to allow multiple TCC cycles to occur in order to verify a slipping condition. It may also be necessary to ensure the transmission is warm before performing this step.
Drive the vehicle in 4th gear with the TCC commanded ON.
Does the scan tool TCC Slip Speed measure within the specified range for 7 seconds?
130-800 RPM

Inspect the torque converter clutch (TCC) solenoid valve for the following conditions:
• Internal malfunction, such as sediment or damage
• Damaged seals
• Refer to Torque Converter Clutch Pulse Width Modulation Solenoid, Torque Converter Clutch Solenoid, and Wiring Harness .
Inspect the torque converter clutch pulse width modulation (TCC PWM) solenoid valve for the following conditions:
• Internal malfunction, such as sediment or damage
• Damaged seals
• Refer to Torque Converter Clutch Pulse Width Modulation Solenoid, Torque Converter Clutch Solenoid, and Wiring Harness .
Did you find and correct the condition?

you need a better mechanic that traces ALL of the possibilities of each code, not just read the code and trow in a part hoping that it's fixed ~ it can be wiring as well, not just plug in a new part as mentioned on the 2nd trouble code to the vehicle speed sensor

P0744 Torque Converter Clutch Circuit Intermittent


P0722 Output Speed Sensor No Signal

the first of the 2 looks to be more intensive to trace and find out the problem & the 0722 is the easier job for an intermediate mechanic to trace the wiring for continuity

P1744 - Torque Converter Clutch System Stuck in Off Position.

Either way the problem points to an internal transmission problem.
1. Drive it and see if the codes come back, and see if it is slipping in overdrive.

2. Check the transmission pressure in drive, with the overdrive on and the transmission slipping.

These transmissions have a high failure rate. Have seen internal transmission slippage that showed up in drive with the Overdrive (OD) switch on, but not with the OD switched off. It was related to the coasting clutch being on and off in that range. In that case, there was an internal mechanical transmission problem. We recommend a rebuilt transmission from the dealer and an external transmission cooler - the new rebuilt transmission will last longer.

Good luck (remember to rate this free answer).

CHECK TRANSMISSION FLUID LEVEL FIRST.A FAULTY TORQUE CONVERTER WILL KEEP CAR FROM CRANKING IF TORQUE CONVERTER REMAINS LOCKED UP.CHECK BRAKES LIGHTS TO SEE IF BRAKE LIGHTS WORKING.BECAUSE WHEN YOU APPLY BRAKES THE TORQUE CONVERTER SUPPOSE TO UNLOCK.IF BRAKE LIGHTS WORK, HAVE CAR CODE SCAN TO SEE WHAT TRANSMISSION CODE YOU ARE GETTING.

If it was rebuilt then I would find out where it was done and go there and get all of the information I could get on it also see if the torque converter was replaced or not if it was then the trans needs to be redone again and see if the shop has a workmanship warranty hope this helps

getting a rebuilt trans would be your only option really i had the same problum with my 2000 the replaced the torque converter the rear main seal and the o ring and it still dose the same thing the is no other ortion then getting it rebuilt or a new one but rebuilt is just as good and cheaper.

Here's was the code means:
P1870 Transmission Component Slipping

A code that indicates a problem with your tranmission. Ususally causes a hard shift from 1st to second gear. Need to have a transmission expert look at the vehicle. Most cases the torque converter is the main problem. But, sometimes the transmission may need rebuilt if damage has occurred.

what is the (revolutions per minute) rpm of your engine when the torque converter engages, was the torque converter rebuilt too? what type torque converter is in the ford ie low stall where it engages the gear box at around 900 to 1000 rpm. has there been any power band adjustment by the company that rebuilt your automatic transmission after the insallation.

I had the same problem in my 96 f-350. The transmission has slipped recording a slip code in the transmission. You can pull the codes and get it. I shifts into a safe mode that increases the pressure inside your transmission as part od a fail safe. Plain and simple, you have to have the tranny rebuilt.

I would have your speed sensor checked out as they can send a false signal to the computer to make it think that the tranny is slipping and / or the torque converter is failing. Good luck and remember to rate all the solutions you get. Thanx.