Restore Peak Performance to Your 2016 Savana 2500
The Engine Control Module (ECM), often called the Powertrain Control Module (PCM), is the central computer of your 2016 GMC Savana 2500. It’s responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When the ECM begins to fail, it can cause a wide range of frustrating and difficult-to-diagnose issues, leaving your reliable workhorse van sidelined. This direct-fit replacement ECM, part number 22819494, is the definitive solution to get your van running like new again.
Unlike modules from a salvage yard or a local auto parts store, this unit comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). We load the latest, most stable software updates directly from GM, ensuring optimal performance, fuel efficiency, and emissions compliance. This critical programming step means you can avoid a costly trip to the dealership for flashing. It’s a true plug-and-play solution designed for a straightforward installation.
From the Diagnostic Bay
We had a 2016 Express van (a cousin to the Savana) come into the shop with a ghost of a problem. The owner, a local plumber, said it would randomly stall at red lights, but only after it had been running for over an hour. No check engine light, no consistent codes. We checked the fuel pressure, spark, and all the usual suspects, but everything looked perfect. On a hunch, we monitored the ECM’s data stream on a long test drive. Sure enough, as the engine bay got hot, the processor started dropping data packets before finally cutting out. The internal components were failing under heat. We installed one of these VIN-programmed modules, and the van has been running without a single hiccup for over a year. It’s often the part you least suspect that’s causing the biggest headache.
Is Your Savana Exhibiting These Symptoms?
A failing ECM can manifest in numerous ways. If you’re experiencing any of the following, a faulty engine computer could be the culprit:
- ✔ Check Engine Light: An illuminated or flashing Check Engine Light (CEL) is one of the most common signs.
- ✔ Engine Stalling or Misfiring: The engine may stall unexpectedly, run rough, or misfire, especially under load.
- ✔ No-Start Condition: The engine cranks but refuses to start, indicating a potential loss of fuel or spark control.
- ✔ Poor Fuel Economy: A sudden and unexplained drop in MPG can be caused by incorrect fuel mixture calculations from a faulty ECM.
- ✔ Failed Emissions Test: The ECM plays a vital role in managing your van’s emissions systems.
- ✔ Communication Errors: Your mechanic’s scan tool may be unable to communicate with the ECM, a clear sign of internal failure.
- ✔ Harsh or Incorrect Shifting: The ECM works with the transmission controller to ensure smooth shifting.
The Solution: A Pre-Programmed 2016 Savana 2500 ECM
Don’t let a faulty computer keep your van off the road. Our process is simple and effective. When you purchase this module, you provide us with your van’s VIN. Our technicians then use that VIN to access the official GM database and flash the unit with the precise software your vehicle requires. This ensures all factory settings and operational parameters are perfectly matched to your engine, transmission, and options. The result is a seamless installation that restores the performance and reliability you depend on.
This Module is a Direct Replacement for the Following Part Numbers:
12668866, 12668994, 12643636, 12663405, 12670335, 22819494, 12692200
Guaranteed Fitment for a Wide Range of GM Vehicles:
This Engine Control Module is compatible with a variety of GM cars, trucks, and vans. Please verify your vehicle and options below:
- CRUZE 12-14 (Gasoline, 1.4L)
- CRUZE 15 (Gasoline, ID 12643636 or 12668866)
- CRUZE 16 (VIN P, 4th digit, Limited)
- ELR 14-16 (Gasoline)
- ENCORE 13-14 (1.4L)
- ENCORE 15 (1.4L, ID 12643636 or 12668866)
- ENCORE 16 (1.4L, VIN B, 8th digit, opt LUV)
- EXPRESS 2500/3500 VAN 16 (4.8L or 6.0L)
- SAVANA 2500/3500 VAN 16 (4.8L or 6.0L)
- SIERRA 2500/3500 PICKUP 12-16 (6.0L)
- SIERRA DENALI 2500/3500 12-16 (6.0L)
- SILVERADO 2500/3500 PICKUP 12-16 (6.0L)
- SONIC 12 (1.4L)
- SONIC 13-14 (ID 12643636)
- SONIC 15 (ID 12643636 or 12668866)
- SONIC 16
- SPARK 14-15 (Gasoline model)
- SUBURBAN 3500 16
- TRAX 13-16
- VOLT 11-15 (Gasoline)
Frequently Asked Questions
Why is my VIN required for this part?
Your VIN is essential because it allows us to program the ECM with the exact software and calibrations specific to your 2016 Savana 2500’s engine, transmission, and factory options. This ensures a perfect match and plug-and-play installation without needing a trip to the dealer.
Is this part difficult to install?
The physical installation is straightforward for someone with basic mechanical skills. It typically involves disconnecting the battery, unplugging the electrical connectors, and unbolting the old module. Since our module comes pre-programmed, no special computer equipment is needed. Always follow proper safety procedures and disconnect the battery before starting.
Will this ECM require any additional programming after installation?
No. The module is shipped to you fully programmed and ready for installation. In some cases, a security or anti-theft relearn procedure may be necessary, which can typically be done without special tools. Instructions are widely available for this simple procedure.
Will this fix my check engine light?
If the check engine light is caused by an internal failure of the ECM (e.g., processor faults, driver circuit errors), then this replacement part will solve the problem. However, if the light is on due to a faulty sensor or other component, that issue will still need to be addressed.
What happens if I order without providing a VIN?
We cannot ship the module without a VIN. The programming is a critical part of this product, and without it, the ECM will not function correctly in your vehicle. We will contact you after your purchase to retrieve your VIN.