Is your 2007-2008 Chevrolet Avalanche struggling with harsh shifts, getting stuck in gear, or throwing transmission codes? A faulty Transmission Control Module (TCM) can sideline your versatile truck, turning every drive into a frustrating experience. This replacement GM T42 TCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN for a true plug-and-play repair that restores the dependable performance you rely on.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a failing TCM is the likely culprit. This module is engineered to resolve these exact issues:
- Abrupt, jerky, or delayed gear changes
- Vehicle stuck in “limp mode” (usually 2nd or 3rd gear)
- Check Engine Light or transmission warning light is on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift properly
- Noticeably worse fuel economy
Installing this pre-programmed 2007-2008 Avalanche 1500 transmission control module is the most effective way to correct these problems and get your truck operating smoothly and efficiently again.
Features & Benefits
- ✔ VIN-Programmed for Your Truck: Arrives ready for installation, pre-loaded with the latest GM software for your specific Avalanche. This eliminates the need for expensive dealership programming, saving you time and money.
- ✔ Restores Smooth Shifting: Directly manages shift points, torque converter lockup, and line pressure to bring back the crisp, predictable shifting you expect from your vehicle.
- ✔ Eliminates Fault Codes: A new, properly functioning TCM is the key to clearing persistent transmission codes and turning off that annoying check engine light for good.
- ✔ OEM-Quality Construction: Built to meet or exceed original equipment standards, ensuring long-lasting reliability whether you’re towing, hauling, or just commuting.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: The Power of Pre-Programming
In modern vehicles like your Avalanche, the TCM is the brain of the transmission, communicating constantly with the engine computer. Simply swapping a used or unprogrammed module is a recipe for failure. It won’t have the correct software for your truck’s specific engine, tire size, and gear ratios, leading to continued poor performance or a no-start condition. Our VIN programming service ensures this 2007-2008 Avalanche 1500 transmission control module is a perfect electronic match from the moment you plug it in, providing a seamless and successful repair.
Frequently Asked Questions
Is this part difficult to install on my Avalanche?
Installation is straightforward for someone with basic mechanical skills. On the 2007-2008 Avalanche, the TCM is typically located next to the battery in the engine compartment. The process involves disconnecting the battery, unplugging the electrical connectors, unbolting the old module, and installing the new one. The entire job can usually be completed in under 30 minutes.
Will this definitely fix my P0700 error code?
A P0700 code is a general fault code indicating the TCM has detected a problem. While a faulty module is a very common cause, this code can also be triggered by other issues. However, if you are also experiencing erratic shifting, limp mode, or other solenoid codes, replacing the 2007-2008 Avalanche 1500 transmission control module is the most probable and effective fix.
Do I need to send my old part back?
No. We do not require a 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 provide my VIN for programming?
You will be prompted to enter your vehicle’s 17-digit VIN during the checkout process. Please double-check it for accuracy, as this is crucial for ensuring the module is programmed correctly for your specific truck.
Is any other setup required after installation?
Because the module comes pre-programmed, no further computer setup is needed. After installation, we recommend using a basic OBD2 scan tool to clear any stored fault codes from the vehicle’s memory to ensure a clean slate.
