If your 2006 Pontiac Pursuit is suffering from erratic shifting, getting stuck in gear, or throwing transmission codes, you’ve come to the right place. As a technician with over two decades of experience under the hood, I’ve seen countless drivers frustrated by these exact symptoms. The cause is often a failing Transmission Control Module (TCM), the electronic brain of your automatic transmission. This replacement T42 TCM, part number 24235340, is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair.
This module is engineered to OEM specifications to restore the precise, smooth shifting your vehicle had when it left the factory. It directly manages shift points, torque converter clutch engagement, and line pressure, eliminating the guesswork and potential damage caused by a faulty unit. By ordering this part, you’re not just buying a component; you’re getting a reliable fix that bypasses expensive dealership programming fees and gets you back on the road with confidence.
Is Your Pontiac Pursuit Showing These Signs?
A failing TCM can manifest in several ways. In my shop, these are the most common complaints I hear that point directly to a bad module. If you’re experiencing any of these, a replacement is likely needed:
- ✔ Harsh, delayed, or unpredictable gear shifts.
- ✔ The vehicle is stuck in “limp mode” (usually 2nd or 3rd gear).
- ✔ Check Engine Light or Transmission Warning Light is on with codes like P0700, P0750, or other solenoid-related DTCs.
- ✔ Complete failure to upshift or downshift, leading to poor acceleration.
- ✔ A noticeable drop in fuel economy or signs of the transmission overheating.
- ✔ Intermittent loss of communication with the module, causing unpredictable behavior.
Case Study: The Elusive Limp Mode
A customer brought in a 2007 Pontiac G6, a close cousin to the Pursuit, with an intermittent limp mode problem. The car would drive fine for days, then suddenly refuse to shift out of 2nd gear. The only code was a generic P0700 (Transmission Control System Malfunction). After checking the wiring and solenoids, which all tested fine, we suspected the TCM itself was failing internally, likely due to heat cycles and age. We installed one of these VIN-programmed T42 modules. The customer reported back a month later that the issue was completely gone. The pre-programming ensured the module communicated perfectly with the car’s other systems from the moment it was plugged in.
A Straightforward Guide to Your TCM Replacement
One of the best features of this part is its simple installation. For a DIYer with basic tools, this is a job you can complete in under an hour. Here’s a general guide for replacing your 2006 Pursuit Transmission Control Module:
- Safety First: Always disconnect the negative terminal from your car’s battery to prevent electrical shorts and to help reset the vehicle’s computer systems.
- Locate the Module: On your Pontiac Pursuit, the TCM is typically found on the driver’s side, mounted to the strut tower in the engine bay. It’s a silver box with electrical connectors.
- Disconnect and Remove: Carefully unclip the wiring harness connectors. Be gentle to avoid breaking the plastic tabs. Then, unbolt the module from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed TCM into place. Reconnect the wiring harnesses, ensuring they click securely into position.
- Final Steps: Reconnect the battery terminal. While the module is plug-and-play, it’s always best practice to use a basic OBD2 scan tool to clear any stored transmission fault codes to ensure a clean slate. Start the vehicle and test drive to confirm smooth shifting.
Verified Vehicle Compatibility
This T42 TCM is a direct replacement for part number 24235340 and interchanges with several other service numbers, including 24252114, 24234503, and 24242391. It fits a wide range of General Motors vehicles. Please confirm your model and location below:
- Pontiac Pursuit (2006): Transmission; (LH strut tower)
- Pontiac G5 (2007-2010): Transmission; (LH strut tower)
- Pontiac G6 (2006-2010): Transmission; (LH strut tower)
- Chevrolet Cobalt (2006-2010): Transmission; (LH strut tower)
- Chevrolet HHR (2006-2011): Transmission; (LH engine compartment)
- Chevrolet Impala (2006-2011): Transmission; (lower air cleaner housing)
- Chevrolet Silverado / GMC Sierra (2007-2013): Transmission; (next to battery)
- Chevrolet Tahoe / GMC Yukon (2007-2009): Transmission; (next to battery)
- And many more GM models from 2006-2014. Please verify your specific model in the full fitment list.
Frequently Asked Questions
Do I need to take my car to the dealership for programming?
No. This is the biggest benefit. We program the module to your vehicle’s VIN before shipping it. This means it’s ready for installation right out of the box, with no extra costs or trips to a mechanic for software flashing.
What is a T42 TCM?
T42 is the hardware designation for this generation of 4-speed automatic transmission control modules used widely by General Motors in the mid-2000s and beyond. It’s the standard controller for transmissions like the 4L60E, 4L65E, and 4L70E in this era.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old module or recycle it locally without the hassle of shipping it back to us.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While this module often resolves the root cause (like internal failure), it’s crucial to ensure the issue isn’t with external wiring or solenoids. However, if other components are fine, a new TCM is the most common fix.