Question about 1998 Ford Escort

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P1744 enginge code tcc solenoid circuit

P1744 enginge code tcc solenoid circuit range/perf is this a sensor inside the transmission that needs to be replaced or trans rebuild?

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DTC P1744 is "TCC - Excessive Slip Detected During Full TCC Engagement". Which means that the Torque Converter Clutch (TCC) is disengaged or the EPC pressure is at the minimum.

The most likely cause is a sticking or bad TCC solenoid inside the transmission. You can check the connector at the transmission to make sure it is clean and tight and that it is not damaged in any way.

If the TCC and wiring is okay, then pressure testing of the transmission will need to be done.

A new torque converter from Ford is about $265.00 and about 4 hours labor. Throw in a $40.00 TCC solenoid and I don't think it'll be more than $700.00 at worst.

If the pressure test is good then it's just going to be the $40.00 tcc solenoid and the cost of the transmission oil and filter changed which should be around $150.00

Good luck and hope it's just a loose wire harness to the solenoid which would cost $0.00 and just your time to locate the break in the wire. The other thing to, is to add a transmission fluid additive that would restore the clutch pack in the transmission and Torque Converter.

Posted on Nov 17, 2009

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You may need a torque converter lockup solenoid or it could be as simple as a loose, corroded or cut wire going to the tranmission

Posted on Nov 17, 2009

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I have a 1999 mercery sable with a automatic transmision and it shifts hard in low gears please help with this problem would help alot. Thanks

Posted on Sep 21, 2011

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Ok one major question! Will changing the tcc solenoid in my 01 cougar fix the o/d flashing and make the car go forward when I try to drive it?


No. replacing the TCC or the OSS, will not make the transmission work. You can unplug these transmissions and they will still work, less OD. Sounds like you may have stripped the torque converter oil pump gear. Common in these older Mercury/Fords.

Mar 18, 2016 | 2001 Mercury Cougar

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How to fix p1744 on 2001 ford expedition


This code has to with the TCC - Torque converter clutch
P1744 TCC TCC The PCM picked up an excessive amount of TCC slippage during normal vehicle operation. TCC slippage/erratic or no torque converter clutch operation. Refer to Diagnosis By Symptom in this section. You'll need to pull the transmission out an replace the torque converter ! Your better off taking to transmission shop an having a proper diagnosis done !

Feb 18, 2015 | 2001 Ford Expedition

1 Answer

2002 ford escape v6 with trans code p1744 and 741


Unfortunately, the possible issues are numerous. The problem is most likely either your torque converter, or electrical issues with your transmission. Without knowing how the vehicle is acting, if it's drivable, when it trips the codes, etc, it makes it more difficult to accurately diagnose.

Here is what ford says about those codes...

SERVICE PROCEDURE
The torque converter clutch may not engage if one or more of the following conditions exist:
- Stuck converter regulator valve
- Stuck solenoid regulator valve
- Stuck bypass clutch control valve
- Stuck pressure failsafe valve
- Pump bore ring groove depth incorrect
- Worn pump shaft or damaged pump shaft seals
- Pump shaft internal sleeve loose (rattles)
- Turbine shaft seals damaged or missing
- Incorrect Torque Converter Clutch (TCC) solenoid
- TCC solenoid mechanically stuck or electrically inoperable
- Damaged internal wiring harness
- Incorrect gear ratio (wrong sprockets)
- Damaged or worn stator support
- Worn torque converter hub bushing
- Torque converter clutch worn or damaged
Use a scan tool to monitor the following PID's:
- TCC = Commanded duty cycle for TCC solenoid
- TCCMACT = Actual slip across the TCC, measured in RPM
- RPM = Actual engine speed
- TSS_SRC = Actual turbine shaft speed
- TCCRAT = Speed/Gear ratio of torque converter/transaxle

Hope this helps.

Feb 16, 2014 | 2002 Ford Escape

1 Answer

Loss of power, transmission issues


code p0700 refers to transmission control system/MIL --malfunction===causes --wiring ---TCM (1)
code po740 refers to torque converter clutch (TCC) solenoid--circuit malfunction===causes--wiring--TCC solenoid--ECM/TCM (transmission control module) (again)
code p0871 refers to transmission fluid pressure (TFP) sensor C -range/ performance problem==causes---wiring--poor connection--TFP sensor--ECM /TCM (yet again)
code p0734 refers to gear 3 ratio (po374 is gear ratio 4) incorrect ratio===causes --wiring--TR sensor/switch--shift solenoids--transmission mechanical fault (causes are the same for po733&734)
code po846 refers to transmission fluid pressure (TFP) sensor B-range/ performance problem===causes ---wiring--poor connection--TFP sensor--ECM/TCM (again). Give the clutch a miss as you still have 1st gear and if the clutch is not working you will not be going any where. Have a pressure test done on the transmission to check for internal mechanical failures (pump ). The rest are sensors are wiring connections , sensor and TCM. My bet is the TCM unit. Have it checked out. What ever you do treat any suggestion of a new transmission with a grain of salt until you are shown proof positive that you need one.

Nov 15, 2013 | 2003 Dodge Neon

2 Answers

My chk engine light came on and i went to autozone and they put it on there diagnostic machine and it came up to the code p0708 definition: my transmission range switch open circuit condition probable...


your vehicle is driving good, not slipping etc... because what i can see from what im reading you have an electrical problem with the transmission wiring.. check the plugs that plug in the transmission, and follow them, im sure you will find something skint up somewhere.

Dec 08, 2010 | Mazda 626 Cars & Trucks

2 Answers

Frequent TCC message Lincoln continental 1999


go to autozone and get the codes. they will test for free.

Message Center Display
The following messages may be displayed on the message center.
This message center will display CHECK TRANSMISSION if the following codes have been set.


DTC Codes Possible Faults P1746, P1747, P1760 Electronic pressure control solenoid P0743, P1767 Torque converter clutch circuit P0750, P0755, P0760 Shift solenoid circuit P1714, P1715, P1716 ISIG P0731, P0732, P0733, P0734 SFT error P0741, P1742, P1743, P1744 Torque converter clutch error P1783 Over temperature P1700 NEV error P0712, P0713, P0710,
P1710, P1713, P1718 Transmission fluid
temperature error P0705, P0708, P1704 Transmission range sensor error P0500, P0503 Vehicle speed sensor error P0715 Turbine shaft speed error
NOTE: For codes. For additional information, refer to Diagnostic Trouble Code Chart.


Sep 25, 2009 | 1999 Lincoln Continental

2 Answers

Wondering what the TCC fault code is


Here are the DTC's for the TCC Solenoid:

DTC P0740 TCC Enable Solenoid Circuit Electrical
DTC P0741 TCC System Stuck Off
DTC P0742 TCC System Stuck On
DTC P0743 TCC Enable Solenoid Circuit Electrical
DTC P0744 Torque Converter Clutch Circuit Intermittent

-KC GTO Dad

Sep 17, 2009 | 2002 Pontiac Grand Prix

1 Answer

P1744 TCC on a 2000 Mercury Cougar


On that model it is almost always the torque convertor.

Apr 10, 2009 | 2000 Mercury Cougar

2 Answers

Overdrive light flashing No lock up


There are several things that can cause the flashing light. sometimes a simple fix is the change the RABS, this sensor is on the rear differiential and is not too expensive. Change it. Pull th epositive cables off of your batteries fro 15 minutes. Hook them back up and see what happens.
Here are some codes for your truck. :?) DRRXR
  • P1704 Digital TRS Failed to Transition State
  • P1705 TR Sensor out of Self Test Range
  • P1711 TFT Sensor Out of Self Test Range
  • P1713 TFT Stuck in Range Low-Below? 50'F
  • P1714 Shilt Solenoid A Inductive Signature Malfunction
  • P1715 Shift Solenoid B Inductive Signature Malfunction
  • P1718 TFT Stuck in Range High-Above? 25OF
  • P1728 Transmission Slip Error
  • P1729 4x4L Switch Error
  • P1744 Torque Converter Clutch System Performance
  • P1746 EPC Solenoid Open Circuit
  • P1747 EPC Solenoid Short Circuit
  • P1754 CCS (Solenoid) Circuit Malfunction
  • P1760 EPC Solenoid Short Intermittent
  • P1780 TCS Circuit Out of self Test Range
  • P1781 4x4L Circuit Out of Self Test Range
  • P1783 Transmission Overtemperature Condition
  • Apr 08, 2009 | 1997 Ford F250 SuperCab

    1 Answer

    Engine service light / 4 codes read description below


    P1744 is probably the TC going on the way out. :(

    P 340 is probably the sensor itself. Don't get the Dorman one if it is the OHV motor.

    P 401 is probably a bad DPF EGR sensor.

    Jun 16, 2008 | 1997 Ford Taurus

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