Restore Your Monte Carlo’s Smooth Performance
If your 2006-2007 Chevrolet Monte Carlo is suffering from harsh, erratic shifting, getting stuck in gear, or has the dreaded check engine light on with transmission codes, you’re not alone. I’ve seen these symptoms countless times in my shop. The culprit is often a failing Transmission Control Module (TCM). This critical component is the brain of your automatic transmission, and when it fails, it can make your car feel unreliable and unsafe to drive. This replacement T42 TCM, part number 24252114, is the definitive solution to get your car shifting like new again.
Case Study: A Tricky Diagnosis
A customer brought in his ’07 Monte Carlo complaining of it being stuck in 3rd gear (limp mode) and a P0700 code that wouldn’t clear. He’d already replaced a couple of shift solenoids with no luck. After connecting my scan tool, I saw erratic data from the TCM and intermittent communication drops. This is a classic sign of internal failure in the module itself, not the transmission’s mechanical parts. We installed one of our VIN-programmed T42 modules, and the problem was solved instantly. The car shifted perfectly on the test drive, and all codes were gone. This is why addressing the TCM first can save you hundreds in unnecessary parts and labor.
Diagnosing a Faulty 2006-2007 Monte Carlo TCM
A failing TCM doesn’t just cause poor performance; it can lead to more significant transmission damage if ignored. Before you suspect a costly internal transmission problem, check for these common electronic failure points. Over my 20 years of experience, these are the tell-tale signs that point directly to the module.
- ✔ Harsh, slamming shifts or delayed gear engagement.
- ✔ The vehicle is stuck in ‘limp mode,’ usually in 2nd or 3rd gear.
- ✔ Check Engine Light is on with codes like P0700, P0750, or other solenoid-related DTCs.
- ✔ Inability to upshift or downshift, leading to poor acceleration.
- ✔ A noticeable drop in fuel economy as the transmission operates inefficiently.
- ✔ Complete loss of communication with the module, preventing diagnostics.
Your 30-Minute Path to a Smooth Ride
One of the best features of this module is that it arrives pre-programmed to your car’s VIN. This eliminates the need for an expensive trip to the dealership for programming. Installation is a straightforward job for any DIY enthusiast or professional mechanic.
- Safety First: Always disconnect the negative battery terminal before starting any electronic work. This prevents electrical shorts and helps reset the vehicle’s systems.
- Locate the Module: On your 2006-2007 Monte Carlo, the TCM is typically found under the lower air cleaner housing. You will need to remove the air cleaner assembly to access it.
- Swap the Part: Carefully disconnect the electrical connectors from the old TCM. Unbolt the module from its mounting bracket and set it aside. Bolt the new module in its place and securely reconnect the wiring harnesses.
- Final Steps: Reinstall the air cleaner assembly and reconnect the battery. Start the vehicle and let it idle for a few minutes. If you have a basic scan tool, use it to clear any stored diagnostic trouble codes.
Verified Fitment for Your Vehicle
This T42 Transmission Control Module is a direct-fit replacement for your 2006-2007 Chevrolet Monte Carlo and is also compatible with a wide range of other GM vehicles. Please verify your part number or vehicle in our database to ensure perfect compatibility.
- CHEVROLET MONTE CARLO (2006-2007): Found in the lower air cleaner housing.
- CHEVROLET IMPALA (2006-2011): Located in the lower air cleaner housing.
- PONTIAC GRAND PRIX (2006-2008): Positioned in the lower air cleaner housing.
- BUICK LACROSSE / ALLURE (2006-2009): Found under the lower air cleaner housing.
- …and many other GM cars, trucks, and SUVs from 2006-2014.
Frequently Asked Questions
Do I need to get this module programmed by a dealer?
No. We pre-program the module to your vehicle’s specific VIN before shipping. It arrives ready for plug-and-play installation, saving you time and the high cost of dealership programming.
Is this a difficult part to install myself?
For most DIYers with basic tools, this is a very manageable job. The module is located under the air cleaner box on the Monte Carlo, which is accessible in under an hour. Following our guide will make the process straightforward.
Will this fix my P0700 trouble code?
A P0700 code is a general transmission fault request. While a faulty TCM is a very common cause for this code, it’s important to ensure other issues aren’t present. However, if you’re also experiencing symptoms like erratic shifting or limp mode, this module is the most likely solution.
What is a core charge? Do I need to send my old part back?
There is absolutely no core charge for this part. You can keep your old module or dispose of it without any hassle or extra fees.
What kind of warranty is included?
We stand behind our parts with a one-year warranty, giving you peace of mind that you’re investing in a quality, reliable component for your vehicle.