Bad Torque Converter Symptoms and Diagnosis



A torque converter is a device that allows you to accelerate your car and prevents your car from stalling when you come to a complete stop. Traditional automatic transmission has a torque converter which is located between the transmission and the engine. It controls the shift by converting power from the engine into hydraulic pressure. One of the most common transmission problems is a failing torque converter which usually leads to other internal damage to the transmission. 

Eagle Transmission in Mesquite can do a free initial check out on your torque convert / transmission. More extensive diagnostics are available for an additional charge. Eagle Transmission shop in Mesquite services the entire Dallas, Fort Worth metroplex area.

Eagle Transmission Shop in Mesquite can replace your torque converter prices ( vary by labor time torque converter type etc. Call Us for more Details. 214-306-9786

Common Symptoms of a Torque Converter Failure are:

Transmission overheating.

Transmission fluid is leaking.

Transmission fluid has been contaminated.

Gears are slipping.

Acceleration Loss.

Strange Noises.

Check Engine Light is illuminated.

Does A Bad Torque Converter Throw a Code?

A bad torque converter does not always throw a code. Related torque converter codes have to do with the torque converter clutch and other issues with the torque converter so are less likely to throw a code.

Diagnostic Trouble Codes and Meaning:

P0740 Code: “Torque Converter Clutch Solenoid Circuit/Open Circuit”. This code is triggered when the powertrain control module detects an issue with the torque converter clutch solenoid circuit. Symptoms include check engine light on, shuddering, shifting issues, stalling, low fuel economy, and engine speed increased. 

P0741 Code: “Torque Converter Clutch Solenoid Circuit Performance/Stuck Off”. This code is triggered when the engine control module senses an issue with the torque converter clutch circuit performing poorly. Symptoms include check engine light on, higher fuel consumption, shuddering, and car may stall.

P0742 Code: “Torque Converter Clutch Circuit Stuck On”. This code is triggered when the powertrain module has detected an issue with the torque converter clutch circuit and causing the solenoid to fail. Symptoms include check engine light on, and the engine stalling. 

P0743 Code: “Torque Converter Clutch Solenoid Circuit Electrical”. This code is triggered when detection of an issue with the torque converter clutch solenoid or its circuit. Symptoms include check engine light on, lower fuel mileage, RPMs are higher at highway speeds.

P0744 Code: “Torque Converter Clutch Circuit Intermittent”. This code is triggered when an issue arises with the torque converter, torque converter solenoids, wiring, or a faulty TCM. Symptoms include check engine light on, erratic shifting, and extra fuel consumption. 

P2756 Code: “Torque Converter Clutch Pressure Control Solenoid”. This code is triggered when detecting failure of the torque converter clutch. Symptoms include check engine light is on, erratic gear shifts, stalling of engine, and rise in fuel consumption.

P2757 Code: “Torque Converter Clutch Pressure Control Solenoid Control Circuit Performance/Stuck Off”. This code is triggered when the torque converter has failed, a torque converter solenoid is defective, problem with valve body, and an internal transmission failure. Symptoms include check engine light on, shifting issues, reduced fuel economy, and problems with torque converter engagement.

P2758 Code: “Torque Converter Clutch Pressure Control Solenoid Control Circuit/Stuck On”. This code is triggered due to failure of the torque converter, torque converter solenoid failure, or wiring issues. Symptoms include check engine light on, transmission not shifting properly, and increase fuel consumption.

P2759 Code: “Torque Converter Clutch Pressure Control Solenoid Control Circuit Electrical”. This code is triggered due to a faulty torque converter clutch pressure control solenoid, poor electrical connection, or torque converter clutch pressure control solenoid harness is shorted or opened. Symptoms include check engine light on, increased fuel consumption and transmission may not shift properly. 

P2760 Code: “Torque Converter Clutch Pressure Control Solenoid Control Circuit/Intermittent”. This code is triggered due to torque converter failure, torque converter solenoid failure, or a wiring issue. Symptoms include check engine light on, unpredictable shifting, and overheating.

P2761 Code: “Torque Converter Clutch Pressure Control Solenoid Control Circuit/Open”. This code is triggered by transmission failure, a faulty torque converter clutch, or wiring issues.  Symptoms include check engine light on, torque converter clutch not working properly, shifting issues, and increase fuel consumption.

P2762 Code: “Torque Converter Clutch Pressure Control Solenoid Control Circuit Range/Performance”. This code is triggered by a bad or faulty transmission or an electrical issue. Symptoms include check engine light on, transmission slippage, overheating, and harsh shifting. 

P2763 Code: “Torque Converter Clutch Pressure Control Solenoid Control Circuit/High”. This code is triggered by transmission fluid problems, an electrical issue, or a bad solenoid. Symptoms include check engine light on, overheating, increased fuel consumption, and gear slippage.

P2764 Code: “Torque Converter Clutch Pressure Control Solenoid Control Circuit/Low”. This code is triggered by internal torque converter issues, transmission failure or a bad torque converter solenoid. Symptoms include check engine light on, transmission shift issues, increased fuel consumption and a faulty torque converter clutch.

P2769 Code: “Torque Converter Clutch Circuit/Low”. This code is triggered due to torque converter failure. Symptoms include check engine light on, engine stalling, shuddering, shaking and erratic shifts.

P2770 Code: “Torque Converter Clutch Circuit/High”. This code is triggered due to torque converter failure, torque converter solenoid failure, and wiring issues. Symptoms include check engine light on, skipping gears, stuck in gears, and vehicle sluggish.

P2783 Code: “Torque Converter Temperature Too High”. This code is triggered due to internal transmission failure. Symptoms include check engine light on, smoke from transmission area, and slipping.