Restore Dependable Shifting to Your Workhorse Van
Is your Chevrolet Express 3500 suffering from harsh shifts, getting stuck in gear, or throwing transmission codes? A faulty Transmission Control Module (TCM) can bring your work to a grinding halt, costing you time and money. This OEM-quality T42 TCM is the definitive solution, arriving pre-programmed to your van’s specific VIN. This means no expensive trips to the dealership for programming—just a straightforward, plug-and-play installation to get you back on the road and back to business.
Common Symptoms & Your Solution
If your van is experiencing any of the following issues, a failing TCM is the most likely culprit. This module is engineered to resolve these exact problems:
- Abrupt, harsh, or erratic gear changes
- Delayed engagement when shifting from Park to Drive or Reverse
- Vehicle stuck in “limp mode” (usually second or third gear)
- Illuminated Check Engine Light or Transmission Warning Light
- Diagnostic Trouble Codes (DTCs) such as P0700, P0750, or other solenoid-related faults
- Failure to upshift or downshift, leading to poor acceleration and fuel economy
Installing this Express 3500 programmed transmission control module is the most effective way to restore your transmission’s logic, ensuring smooth, reliable performance for the long haul.
Key Features & Tangible Benefits
- ✔ VIN-Programmed for Your Van: We flash the module with your vehicle’s specific VIN and the latest GM software updates before it ships. This guarantees perfect communication between the engine and transmission, eliminating the need for dealer programming and saving you hundreds of dollars.
- ✔ Restores Smooth Operation: By precisely managing shift points, torque converter lockup, and line pressure, this module restores the smooth, predictable performance you rely on for daily work.
- ✔ Durable & Reliable Construction: Built to meet or exceed strict OEM specifications, this module is designed to withstand the demanding conditions of a commercial vehicle, from heavy loads to long hours on the road.
- ✔ Direct-Fit Replacement: This unit is a direct replacement for a wide range of service numbers, including 24252114, 24242391, and 24234503, ensuring a perfect fit and hassle-free installation.
- ✔ Warranty Protection: This unit is backed by our one-year replacement warranty.
From the Expert’s Bench: Why Pre-Programming is Non-Negotiable
For a work vehicle like the Express 3500, downtime is the enemy. A generic, non-programmed TCM from a big box store might seem cheaper upfront, but it’s a dead part until a dealer with a Tech 2 or MDI scan tool programs it. That means towing fees, dealership labor rates, and days off the road. Our process eliminates that entire headache. We ensure your new module is a true plug-and-play part, calibrated specifically for your van’s powertrain. This isn’t just a convenience; it’s a business decision that minimizes downtime and gets your essential tool back in service immediately.
Frequently Asked Questions
Do I need to have this module programmed by a dealer?
No. This is the primary benefit of our service. We pre-program the module to your van’s VIN before shipping. It will arrive ready for installation, requiring no further programming or setup.
Where is the TCM located on my 2006-2014 Express Van?
On the Chevrolet Express and GMC Savana vans from this era, the Transmission Control Module is typically located in the engine compartment on the right-hand (passenger) side.
Is this a difficult part to install myself?
For someone with basic mechanical skills, the installation is very straightforward and usually takes less than 30 minutes. It involves disconnecting the battery, unplugging the electrical connectors from the old module, unbolting it, and then reversing the process with the new one. No special tools are required.
Will this fix my specific transmission problem or error code?
This Express 3500 programmed transmission control module is the direct solution for issues caused by a faulty TCM, including common codes like P0700 and erratic shifting behavior. While it resolves the vast majority of electronic transmission faults, you should always ensure the transmission’s mechanical components are in good condition.
Is there a core charge for my old part?
No, there is no core charge. You can keep your old part, which saves you the time and expense of shipping it back.