Is Your 2016 Express Van Unreliable? It Could Be the ECM.
For a business owner or fleet manager, a 2016 Chevrolet Express 3500 Van that’s off the road is more than an inconvenience—it’s a direct hit to your bottom line. When your van starts exhibiting strange electrical gremlins, poor engine performance, or fails to start altogether, the root cause is often the Engine Control Module (ECM), the central computer that manages your engine’s performance. A failing ECM can cause a cascade of frustrating and hard-to-diagnose issues, leaving you stranded and costing you valuable time. This replacement Engine Control Module, part number 22819494, is the definitive solution to restore your van’s performance and reliability.
Symptoms of a Failing Engine Control Module
If your vehicle is experiencing any of the following issues, a faulty ECM is a likely culprit. Don’t continue throwing parts at the problem; address the source directly.
- ✔ Persistent Check Engine Light (CEL) that won’t clear or returns immediately.
- ✔ Unexplained engine stalling, stumbling, or rough idling.
- ✔ A sudden and significant drop in fuel economy.
- ✔ The engine cranks but refuses to start.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Loss of power and poor acceleration.
- ✔ Error codes related to module communication (U-codes) or processor faults (P06xx codes).
Why Choose Our Programmed 2016 Express 3500 ECM?
This isn’t just a replacement part; it’s a complete, ready-to-install solution. The biggest hurdle in replacing a modern vehicle computer is the complex programming required to make it communicate with your specific vehicle. We handle that for you. When you order, you provide us with your vehicle’s VIN. Our technicians then flash the module with the latest, most up-to-date software directly from GM for your exact vehicle configuration. This process ensures seamless integration with your van’s anti-theft system, transmission, and other electronic modules.
This module is a direct replacement for a wide range of GM vehicles and part numbers, including 12668866, 12668994, 12643636, 12663405, 12670335, 22819494, and 12692200. While it is a perfect fit for the 2016 Express and Savana vans with 4.8L and 6.0L engines, it also fits many other models like the Silverado, Sierra, Cruze, Sonic, and more, making it a versatile and reliable component.
Installation is Straightforward
Once you receive your pre-programmed module, the physical installation is simple. You’ll need basic hand tools to disconnect the battery, locate and unbolt the old ECM (typically on the LH rear or front of the engine compartment), and swap the electrical connectors to the new unit. After reconnecting the battery, you will likely need to perform a simple security relearn procedure, which pairs the new ECM to your keys. This procedure typically takes 10-30 minutes and does not require a trip to the dealership or any special scan tools.
Frequently Asked Questions
Why do you need my Vehicle Identification Number (VIN)?
Your VIN is essential for us to load the correct GM-certified software for your vehicle’s specific engine, transmission, and options. This ensures the 2016 Express 3500 ECM works perfectly right out of the box, eliminating the need for expensive dealership programming.
Is this a plug-and-play part?
Yes, for the most part. Because we program it to your VIN, it eliminates the need for a dealership visit. However, you will likely need to perform a simple security relearn procedure at home, which involves a series of key turns. Instructions are widely available online and are easy to follow.
Will this fix my check engine light?
If the check engine light and other symptoms are caused by a faulty ECM, this part is the correct solution. It’s crucial to have your vehicle properly diagnosed to confirm the ECM is the point of failure before ordering.
Where is the ECM located on my Express Van?
On the 2016 Express 3500 Van, the Engine Control Module is typically located in the engine compartment on the left-hand (driver’s) side, often near the firewall or inner fender.
What if I have a different part number?
This module replaces several common GM part numbers, including 12668866, 12668994, and 12643636. Please check the fitment list or contact us with your original part number to confirm compatibility.