Is Your 2006-2007 Monte Carlo Shifting Erratically?
If your Chevrolet Monte Carlo is experiencing harsh shifts, delayed gear engagement, or has the check engine light illuminated with transmission-related codes, you’re likely dealing with a failing Transmission Control Module (TCM). The TCM is the electronic brain of your automatic transmission, responsible for orchestrating every gear change and ensuring smooth, efficient operation. When it fails, it can lead to a frustrating and potentially damaging driving experience, from being stuck in ‘limp mode’ to complete transmission failure. This VIN-programmed T42 TCM, part number 24256960, is the definitive solution to restore your vehicle’s performance and reliability.
From the Diagnostic Bay
We had a 2007 Monte Carlo SS come into the shop that was driving the owner crazy. It would intermittently slam into gear and then throw a generic P0700 transmission fault code, only to drive perfectly fine after a restart. We checked the fluid, wiring, and solenoids—all were fine. The issue was elusive until we hooked up a high-level scanner and saw erratic data coming from the TCM. We replaced the original unit with this specific VIN-programmed T42 module. The car immediately started shifting like it just rolled off the factory floor. The pre-programming was key; it saved the customer a trip to the dealer and hundreds of dollars in programming fees.
Symptoms of a Failing Monte Carlo Transmission Module
- ✔ Unpredictable or harsh shifting between gears.
- ✔ The vehicle feels stuck in a single gear, often referred to as ‘limp mode’.
- ✔ A noticeable delay when shifting from park into drive or reverse.
- ✔ Illumination of the Check Engine Light or Transmission Warning Light on your dashboard.
- ✔ Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-specific faults.
- ✔ Reduced fuel economy due to inefficient gear management.
- ✔ The transmission may feel like it is slipping out of gear while driving.
The Direct-Fit Solution for Your GM Vehicle
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and extra expense out of the repair by programming the module to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This crucial step ensures that the TCM has the latest GM software and is perfectly calibrated for your Monte Carlo’s engine, transmission, and tire size. The result is a seamless installation that restores factory performance without requiring expensive dealer-only tools or additional programming. Built to strict OEM specifications, this module guarantees reliability and longevity, backed by our one-year warranty.
This versatile T42 module is also a direct replacement for a wide range of GM vehicles from 2006-2014 equipped with 4-speed automatic transmissions like the 4L60E, 4L65E, and 4L70E. It is interchangeable with numerous part numbers, including 24252114, 24234503, 24230461, and 24240400, making it a reliable choice for many cars, trucks, and SUVs.
Frequently Asked Questions
Frequently Asked Questions
What does ‘VIN Programmed’ mean for me?
VIN programming means we load your vehicle’s specific factory software onto the module before shipping it to you. This makes the installation plug-and-play. You won’t need to take your car to a dealership for expensive programming, saving you time and money. Just provide your VIN at checkout.
Where is this module located on my 2006-2007 Monte Carlo?
On the 2006-2007 Chevrolet Monte Carlo, the transmission control module is typically found attached to the lower air cleaner housing in the engine bay. Always disconnect the vehicle’s battery before starting the replacement process.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault request from the TCM to the Engine Control Module (ECM) to turn on the check engine light. While a faulty TCM is a very common cause for this code, it’s important to scan for other transmission-specific codes (like P07xx) that pinpoint the exact issue. This module will resolve the issue if the TCM itself is the root cause.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep your old module, which simplifies the process and gets you back on the road faster without worrying about return shipping or core deposits.
Is any special tool required for installation?
Installation typically requires only basic hand tools like a socket set to remove the mounting bolts and disconnect the electrical connectors. After installation, it’s recommended to use a standard OBD2 scan tool to clear any stored fault codes from the vehicle’s memory.