Get Your Van Back in Service with a Plug-and-Play Solution
Is your Chevrolet Express 2500 suffering from harsh, erratic shifting or stuck in limp mode? A faulty Transmission Control Module (TCM) can bring your work to a grinding halt, causing frustrating delays and potential damage. This OEM-quality T42 TCM is the definitive solution, arriving pre-programmed to your vehicle’s specific VIN. This means no expensive trips to the dealership for programming—simply install the module, and get your van back on the road, shifting smoothly and reliably. Restore the dependable performance your work demands with a part designed for a perfect fit and immediate function.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a failing TCM is the likely culprit. This module is engineered to resolve these exact problems:
- Abrupt, harsh, or delayed gear shifts
- Vehicle is stuck in one gear (limp mode)
- Check Engine Light or Transmission Warning Light is on
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related codes
- Failure to upshift or downshift properly
- Noticeable decrease in fuel economy
- Complete loss of transmission communication
Features & Benefits
- ✔ VIN-Programmed for Your Van: This module is flashed with the latest GM software and programmed to your specific VIN before shipping. This ensures 100% compatibility and eliminates the need for any additional programming.
- ✔ Restores Smooth Shifting: By precisely managing shift points, torque converter lockup, and line pressure, this TCM restores the smooth, predictable transmission performance you rely on.
- ✔ Direct-Fit Replacement: Engineered to meet or exceed original equipment specifications for a perfect installation. It is a direct replacement for multiple part numbers, including 24252114, 24234503, and 24238856.
- ✔ Built for Durability: Constructed with high-quality components to withstand the demanding conditions of a work vehicle, ensuring long-term reliability and performance.
- ✔ This unit is backed by our one-year replacement warranty.
Expert Insight: Why Pre-Programming is Non-Negotiable
In modern GM vehicles like the Express 2500, the TCM doesn’t just control the transmission; it communicates constantly with the Engine Control Module (ECM) and Body Control Module (BCM). A generic, non-programmed module can’t speak this unique digital language, leading to persistent error codes and performance issues. Our VIN-programming service ensures your new Express 2500 Transmission Control Module 24238856 is a perfect digital match, just like the original, guaranteeing a seamless and successful repair from the moment it’s installed.
Frequently Asked Questions
Do I need to take my van to a dealer after installing this part?
No. This module comes fully programmed to your vehicle’s VIN. It is a true plug-and-play solution that does not require any additional dealership programming, saving you time and money.
Where is the TCM located on a Chevy Express van?
On the 2006-2014 Savana and Express vans, the Transmission Control Module is typically located in the engine compartment on the right-hand (passenger) side.
Is this part difficult to install?
Installation is straightforward for someone with basic mechanical skills. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. The entire process usually takes less than 30 minutes.
How do I know for sure that my TCM is the problem?
Common signs include erratic shifting, getting stuck in gear, and specific diagnostic codes like P0700. While these are strong indicators, it’s always best to have a professional diagnosis or use a quality scan tool to confirm the TCM is the source of the fault before ordering.
Will this fit vehicles other than the Express 2500?
Yes. This T42 TCM is compatible with a wide range of 2006-2014 General Motors vehicles equipped with 4-speed automatic transmissions, including the Silverado, Tahoe, Sierra, Yukon, and many more. Please check the compatibility list to confirm your specific model.