Get Your Workhorse Back on the Road, Fast.
When your Chevrolet Express 3500 is down, your business is on hold. Erratic shifting, a lit check engine light, or a transmission stuck in limp mode aren’t just annoyances—they’re costing you time and money. This T42 Transmission Control Module (TCM) is the definitive, no-nonsense solution to get your van’s transmission operating like new. Pre-programmed specifically to your vehicle’s VIN, it eliminates the need for expensive dealership visits and gets you back to work with confidence.
Common Symptoms & Your Solution
If your van is experiencing any of the following issues, a failing TCM is the likely culprit. This module is engineered to resolve these exact problems:
- Harsh, Erratic, or Delayed Shifting: Restores the smooth, predictable gear changes your transmission was designed for.
- Stuck in “Limp Mode”: Gets your vehicle out of a single gear (like 2nd or 3rd) and restores full transmission functionality.
- Check Engine & Transmission Warning Lights: Specifically resolves common Diagnostic Trouble Codes (DTCs) like P0700, P0750, and other solenoid-related faults.
- Poor Performance & Fuel Economy: By correcting shift points and torque converter lockup, this module helps restore your van’s efficiency and power.
Installing this professionally programmed 2006-2014 Express 3500 transmission control module is the most effective way to restore your vehicle’s reliability and performance.
Features & Benefits
- ✔ VIN Programmed for Your Van: Arrives ready for a plug-and-play installation. No extra trips to the dealer for expensive programming are required, minimizing your vehicle’s downtime.
- ✔ Restores Smooth Operation: Precisely manages gear shifting, torque converter clutch, and line pressure to eliminate performance issues and prevent further transmission wear.
- ✔ OEM-Standard Quality: Built to meet or exceed original equipment standards, ensuring dependable performance whether you’re hauling heavy loads or navigating city traffic.
- ✔ Broad GM Compatibility: This is the correct module for a wide range of GM trucks, vans, and SUVs, including the Savana, Silverado, Sierra, Tahoe, and Yukon.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
- ✔ No Core Charge: Keep your old part without the hassle or expense of returning a core.
Expert Insight: The Critical Role of VIN Programming
For a work vehicle like the Express 3500, precision is non-negotiable. A generic, non-programmed module can cause more problems than it solves, leading to incorrect shift patterns, poor performance, and even potential damage to your transmission. Our process ensures this 2006-2014 Express 3500 transmission control module is loaded with the latest GM software specific to your exact vehicle. This guarantees it communicates flawlessly with the Engine Control Module (ECM) and other vehicle systems, providing a reliable, first-time fix that you can count on.
Don’t let a faulty TCM disrupt your workflow. By choosing the correct, pre-programmed 2006-2014 Express 3500 transmission control module, you’re investing in a dependable solution that ensures your vehicle is ready for the demands of the job.
Frequently Asked Questions
What does a transmission control module do?
The TCM acts as the brain of your automatic transmission. It uses data from various sensors to control when the transmission shifts gears, how firmly it shifts, and when the torque converter locks up, ensuring optimal performance and fuel efficiency.
Is this part difficult to install?
For most Express and Savana vans, the TCM is located in the engine compartment on the right-hand side, making it relatively accessible. With basic tools, installation typically takes under 30 minutes. Always disconnect the battery before starting the replacement.
Will this fix my check engine light for transmission codes?
Yes. This module is designed to resolve common transmission-related DTCs, such as P0700 (Transmission Control System Malfunction) and various solenoid codes. After installation, it’s recommended to clear any stored codes with a scan tool.
Do I need to take my van to the dealer after installation?
No. Because this module is pre-programmed to your vehicle’s VIN, it is ready to install right out of the box. This allows you to bypass the time and expense of a dealership visit for programming.
What happens if I don’t replace a failing TCM?
Continuing to drive with a faulty TCM can lead to more severe and costly transmission damage. Poor shifting can cause excessive wear on clutches and other internal components, potentially leading to a complete transmission failure.
How do I provide my VIN for programming?
After you place your order, we will contact you for your vehicle’s 17-digit VIN. Our technicians will then program the module to ensure it is a perfect match for your specific vehicle configuration before shipping.