Is Your Work Van Unreliable? Restore Peak Performance and Drivability.
Your GMC Savana 3500 is the backbone of your business, and when it’s down, everything stops. If you’re experiencing perplexing issues like random stalling, a persistent check engine light, poor fuel economy, or a complete no-start condition, the Engine Control Module (ECM) could be the culprit. The ECM is the brain of your vehicle’s engine, managing everything from fuel injection and ignition timing to transmission shifting. When it fails, it can create a cascade of problems that are often difficult to diagnose, leading to costly downtime and frustrating repair attempts.
Don’t let a faulty computer sideline your vehicle. This is a direct-fit replacement Engine Control Module for your 2016 GMC Savana 3500, also fitting a wide range of other GM cars, trucks, and vans. To ensure a seamless installation, we program the module specifically to your vehicle using your VIN. This process loads the latest, most stable software updates from GM, often correcting factory bugs and improving overall performance and efficiency. This isn’t just a replacement part; it’s a comprehensive solution to get your vehicle running correctly again.
From the Diagnostic Bay
We had a 2016 Express van (which uses the same ECM) come into the shop with a complaint of intermittent stalling at stoplights. The customer had already replaced the throttle body and a few sensors with no luck. Scans showed a U0100 Lost Communication with ECM code, but it wasn’t consistent. After checking all power and ground circuits to the ECM connector and finding them solid, we suspected an internal failure in the module itself. Heat and vibration can cause microscopic cracks in the circuit board over time. We installed one of our VIN-programmed ECMs, performed the necessary security relearn, and the van ran perfectly. The customer was back on the road for his delivery business the same day, saving him from further diagnostic headaches and lost income.
Key Features of this 2016 Savana 3500 ECM
This module is the definitive solution for restoring your vehicle’s electronic engine management system. We handle the complex programming so you can focus on the straightforward installation.
- ✔ VIN-Programmed for Your Vehicle: We flash the module with your van’s specific Vehicle Identification Number, ensuring all systems communicate correctly right out of the box.
- ✔ Loaded with Latest GM Updates: Your new ECM will have the most current software available, which can resolve common drivability issues and enhance performance.
- ✔ Plug-and-Play Installation: Because the programming is done beforehand, the installation process is simplified. In most cases, you will only need to perform a security relearn procedure, which can often be done without special tools.
- ✔ Broad Compatibility: This single unit replaces multiple GM part numbers, including 12668866, 12668994, 12643636, 12663405, 12670335, 12692200, and our target part 22819494.
- ✔ Restores Original Functionality: Corrects issues caused by a failing computer, returning your engine’s performance, fuel efficiency, and reliability to factory specifications.
Common Symptoms of a Failing ECM
If you’re experiencing any of the following, a faulty engine computer may be the cause. Proper diagnosis is always recommended, but these are strong indicators:
- ✔ Check Engine Light is illuminated with various, often inconsistent, trouble codes.
- ✔ Engine cranks but refuses to start.
- ✔ Stalling or stumbling, especially when warm or under load.
- ✔ Noticeable decrease in fuel economy.
- ✔ Poor engine performance, hesitation, or misfires.
- ✔ Transmission shifting issues or harsh engagement.
- ✔ Communication errors with diagnostic scan tools.
Replacing your faulty 2016 Savana 3500 ECM is a critical repair that restores the core functionality of your vehicle. By ordering this pre-programmed unit, you are bypassing the need for expensive dealership programming and getting a reliable part that is ready for installation. Simply provide your VIN during checkout, and we’ll handle the rest, shipping you a module that’s prepared to get your van back in service.
Frequently Asked Questions
Do I need to send you my old ECM?
No, a core return is not required for this part. We program a replacement module for you based on the VIN you provide, allowing you to keep your old part.
What is VIN programming and why is it necessary?
VIN programming involves loading your vehicle’s specific software and calibration files onto the ECM. This is crucial for modern vehicles as it ensures the engine, transmission, anti-theft system, and other modules can communicate and function together as intended by the factory.
Is any additional programming needed after installation?
While the main engine programming is complete, you will likely need to perform a security relearn procedure (also known as a Passlock or anti-theft relearn). This procedure pairs the new ECM to your vehicle’s keys and can typically be done without special tools. Instructions are readily available online for your specific model. In some cases, a Crankshaft Position Variation Relearn may also be needed, which requires a capable scan tool.
How do I provide my VIN?
After you complete your purchase, you will receive instructions on how to send us your 17-digit VIN. We cannot ship the part until we receive this information, as the programming is essential for the part to function.
Will this ECM fit other vehicles besides the 2016 Savana 3500?
Yes, absolutely. This module is a direct replacement for a wide variety of GM vehicles, including the Chevrolet Express, Silverado 2500/3500, Sierra 2500/3500, Cruze, Sonic, Trax, Volt, and Buick Encore within specific year ranges. Please check the detailed fitment list on this page to confirm compatibility with your exact make and model.