Restore Peak Transmission Performance in Your Chevrolet Monte Carlo
If your 2006-2007 Chevrolet Monte Carlo is suffering from harsh shifting, delayed gear engagement, or has a check engine light with transmission-related codes, a failing Transmission Control Module (TCM) is the likely culprit. The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every shift with precision. When it fails, it can mimic serious mechanical problems, leading to poor drivability and potential damage. This direct-replacement T42 TCM, part number 24239926, is the definitive solution to restore your vehicle’s smooth operation and reliability.
One of the most significant advantages of this module is our complimentary VIN programming service. Before shipping, we load your vehicle’s specific Vehicle Identification Number (VIN) and the latest GM software updates directly onto the module. This ensures it communicates perfectly with your car’s other computers, like the Engine Control Module (ECM), right out of the box. You can skip the expensive and time-consuming trip to the dealership for programming; this part is a true plug-and-play solution.
From the Diagnostic Bay
We recently had a 2007 Impala (which shares the same platform as the Monte Carlo) come into the shop. The owner was convinced his 4L60E transmission needed a full rebuild. It was banging into gear and sometimes wouldn’t shift past 2nd. He’d already spent hundreds on a fluid flush and new solenoids with no improvement. After a quick scan, we pulled a P0700 code, which is a general transmission fault request. Digging deeper, we found specific solenoid circuit codes. Instead of tearing down the transmission, we checked the TCM connectors for corrosion and then tested the module itself. It had failed internally. We installed one of our VIN-programmed T42 TCMs, and in less than an hour, the car was shifting like it just left the factory. The customer saved thousands by correctly diagnosing an electronic failure instead of assuming a mechanical one.
Symptoms of a Failing 2006-2007 Monte Carlo TCM
- ✔ Unpredictable or harsh shifting between gears.
- ✔ The vehicle gets stuck in “limp mode,” often in 2nd or 3rd gear.
- ✔ Delayed engagement when shifting from Park to Drive or Reverse.
- ✔ Check Engine Light or Transmission Warning Light is illuminated on the dashboard.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, P0753, P0758, or other solenoid-related faults are stored.
- ✔ A noticeable decrease in fuel economy due to inefficient shifting.
- ✔ Complete loss of shifting capability or intermittent communication failure with the scan tool.
The Plug-and-Play Advantage: VIN Programming Included
The T42 TCM is an integral part of your vehicle’s complex network of electronic modules. It must be perfectly matched to your Monte Carlo’s specific configuration, including engine size, gear ratios, and tire size. Our mandatory VIN programming process handles this for you. By providing your VIN at checkout, you receive a module that is ready for immediate installation without any additional calibration. This process ensures optimal shift points, torque converter lockup strategy, and fuel efficiency, effectively restoring the original factory performance of your transmission.
This module is a direct replacement for a wide range of original service numbers, including 24252114, 24234503, 24239926, and many more. Built to meet or exceed OEM specifications, it provides a dependable and lasting repair for your vehicle’s transmission system. Each unit is rigorously tested to ensure functionality and comes with a one-year warranty for your peace of mind.
Simple Installation for DIY and Professionals
For the 2006-2007 Monte Carlo, the TCM is conveniently located under the lower air cleaner housing, making it accessible for replacement. The process is straightforward and typically takes less than an hour.
- Safety First: Disconnect the negative terminal of your vehicle’s battery.
- Access the Module: Remove the air cleaner assembly to gain clear access to the TCM.
- Disconnect and Remove: Carefully unplug the electrical connectors from the old module and unbolt it from its mounting bracket.
- Install the New Module: Bolt the new VIN-programmed TCM into place and securely reconnect the electrical harnesses.
- Final Steps: Reinstall the air cleaner assembly and reconnect the battery. It’s a good practice to use a scan tool to clear any lingering fault codes from the system.
With no core charge, you don’t have to worry about the hassle and expense of returning your old part. Get your Monte Carlo back on the road and shifting smoothly with this reliable, pre-programmed transmission control module.
What is VIN programming and why is it important for a TCM?
VIN programming is the process of loading your vehicle’s specific factory software and calibration files onto the module. It’s crucial because it ensures the TCM works correctly with your engine, ABS, and other systems for proper shift timing, fuel economy, and overall performance. Our included programming makes this a plug-and-play part.
Will this module fit my 2007 Chevrolet Monte Carlo SS?
Yes, this T42 TCM is the correct replacement for all 2006-2007 Chevrolet Monte Carlo models, including those equipped with the V6 and V8 engines. It is programmed specifically to your vehicle’s VIN to ensure perfect compatibility.
Do I need any special tools for installation?
No special tools are required. Basic hand tools like a socket set and screwdriver to remove the air cleaner housing are all that’s typically needed. The installation is designed to be straightforward for a DIY mechanic or professional technician.
Will this fix a P0700 trouble code?
A P0700 code is a general fault code indicating the TCM has detected a problem and requested the check engine light. While this module often resolves the root cause (like internal circuit failure), it’s essential to diagnose the specific codes the TCM has stored (e.g., solenoid codes) to confirm the TCM is the issue. In many cases, replacing a faulty TCM will clear the P0700 and related codes.
Is there a core charge for my old part?
No, we do not require a core charge. You can keep your old module without any extra fees or the hassle of returning it, making the replacement process simpler and more convenient.