Restore Your Truck’s Shifting Performance
Is your 2007-2008 Chevrolet Avalanche 1500 suffering from harsh shifts, delayed gear engagement, or getting stuck in limp mode? These are classic signs of a failing Transmission Control Module (TCM). A faulty TCM can make your versatile truck feel unreliable and unsafe, disrupting everything from daily commutes to weekend projects. This VIN-programmed T42 TCM is the definitive solution, designed to restore the crisp, predictable shifting and dependable performance you expect from your Avalanche.
Common Symptoms & Your Solution
When the TCM begins to fail, your truck will let you know. You might experience a check engine light with diagnostic trouble codes (DTCs) like P0700, P0750, or various solenoid-specific codes. Other common symptoms include:
- Abrupt, jerky, or unpredictable gear changes
- Failure to shift into higher or lower gears
- The vehicle being stuck in a single gear (limp mode)
- Poor acceleration and reduced fuel economy
- A lit transmission warning indicator on your dash
This module is the direct-fit answer to these frustrating issues. As a critical component of your vehicle’s powertrain, a fully functional 2007-2008 Avalanche 1500 TCM ensures all transmission commands are executed flawlessly, restoring communication between your engine and transmission for optimal operation.
Features & Benefits
- ✔ Plug-and-Play Installation: This module arrives pre-programmed to your truck’s specific Vehicle Identification Number (VIN). This eliminates the need for expensive trips to the dealership for programming, saving you both time and money.
- ✔ Restored Drivability: By precisely managing shift points, torque converter lockup, and line pressure, this TCM brings back the smooth and responsive driving experience you’ve been missing.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment specifications, ensuring reliable performance and long-term durability under all driving conditions.
- ✔ Guaranteed Performance: This unit is backed by our one-year replacement warranty.
- ✔ Comprehensive Compatibility: A direct replacement for a wide range of service numbers including 24252114, 24234503, and 24238856, making it a versatile solution for your repair.
Expert Insight: The Power of Proper Programming
A common mistake is installing a used TCM from another vehicle. While it may look identical, it’s programmed for a different VIN, leading to communication errors, persistent fault codes, and even a no-start condition. Our process ensures this 2007-2008 Avalanche 1500 TCM is an exact electronic match for your truck’s specific configuration, guaranteeing seamless integration with its existing systems right out of the box.
Installation Made Simple
Replacing the TCM on your Avalanche is a straightforward job that can typically be completed in under 30 minutes with basic hand tools. On this specific model, the module is conveniently located next to the battery in the engine compartment. Simply disconnect the battery, unplug the electrical connectors from the old module, unbolt it, and install the new one in its place. Once reconnected, use a standard OBD2 scan tool to clear any stored transmission codes. With our pre-programmed 2007-2008 Avalanche 1500 TCM, you’ll be back on the road with a reliable transmission in no time.
Frequently Asked Questions
What does a TCM do on my 2007-2008 Avalanche?
The Transmission Control Module (TCM) acts as the brain for your automatic transmission. It uses data from various sensors to control shift solenoids, regulate hydraulic pressure, and manage torque converter lockup, ensuring smooth and efficient gear changes.
Is this module difficult to install?
No, installation is designed to be simple for a DIYer or professional mechanic. The module is located next to the battery and is easily accessible. Since it comes pre-programmed to your VIN, no special computer equipment is needed for setup.
Do I need to send my old part back?
No, there is no core charge for this part. You can keep or dispose of your old module at your convenience, making the process hassle-free.
How do I know this is the exact part for my truck?
We program the module using the VIN you provide at checkout. This ensures perfect compatibility with your 2007-2008 Avalanche 1500’s specific systems and options. It is also a direct replacement for multiple part numbers, including 24238856.
Will this fix a P0700 trouble code?
A P0700 code is a general transmission fault code, indicating that the TCM has detected a problem and has requested the check engine light be turned on. While a faulty TCM is a very common cause, you should always diagnose any other specific codes that are present. Replacing a failing TCM often resolves the P0700 code and the underlying issues.