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Engine-Codes – Dodge – P0742 Dodge

P0742 Dodge Code - Torque Converter Clutch Stuck On

Quick Answer

When the P0742 diagnostic trouble code is triggered in a Dodge vehicle, it indicates that the torque converter clutch is stuck on. Common causes include Faulty torque converter clutch solenoid, Low transmission fluid level or poor quality fluid, Wiring or electrical issues in the transmission control system. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0742 Dodge indicates Torque Converter Clutch Stuck On.
Common causes
Common causes include Faulty torque converter clutch solenoid, Low transmission fluid level or poor quality fluid, Wiring or electrical issues in the transmission control system.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0742 Dodge Description

When the P0742 diagnostic trouble code is triggered in a Dodge vehicle, it indicates that the torque converter clutch is stuck on. The torque converter clutch is an essential component of the automatic transmission system that helps improve fuel efficiency and overall vehicle performance. When the torque converter clutch fails to disengage or becomes stuck in the "on" position, it can lead to a range of issues affecting the vehicle's drivability and efficiency.

OBDII Code P0742 Dodge - Torque Converter Clutch Stuck On
P0742 Dodge Code - Torque Converter Clutch Stuck On

Common Causes of P0742 Dodge

  1. Faulty torque converter clutch solenoid
  2. Low transmission fluid level or poor quality fluid
  3. Wiring or electrical issues in the transmission control system
  4. Mechanical problems within the torque converter itself
  5. Internal transmission damage or wear

Symptoms of P0742 Dodge

  1. Engine stalling when coming to a stop
  2. Hesitation or jerking during acceleration
  3. Decreased fuel efficiency
  4. Overheating of the transmission
  5. Illumination of the Check Engine Light

How to Fix P0742 Dodge

  1. Diagnose the exact cause of the issue using a scan tool to confirm the P0742 code and identify the specific component causing the problem.
  2. Inspect the transmission fluid level and condition, topping up or replacing it if necessary.
  3. Check the torque converter clutch solenoid and wiring for any faults or damage, replacing them if needed.
  4. Perform a thorough inspection of the torque converter and transmission components for any signs of wear or damage, repairing or replacing as necessary.
  5. Clear the trouble code from the vehicle's computer system, test drive the vehicle to ensure the issue has been resolved, and reset the Check Engine Light.

Cost to Fix P0742 Dodge

The cost estimate for repairing a P0742 code in a Dodge vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. On average, the parts and labor required for this repair can range from $300 to $800. However, it is essential to note that labor rates at auto repair shops can vary significantly, with hourly rates typically falling between $80 and $150. Additional costs may apply if any parts need to be replaced or if further diagnostics are required. To obtain a more accurate estimate, it is recommended to consult with a trusted auto repair shop in your area.

What does this mean?

Tech Notes for P0742 Dodge

When the a transmission solenoid is stuck on, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

When is the Code Detected?

The Transmission Control Module (TCM) has detected slippage on the Torque Converter Clutch (TCC) during a period when the converter is commanded off

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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