Is Your Buick Enclave Running Rough? The ECM Might Be the Culprit.
The Engine Control Module (ECM), often called the engine computer, is the central command center for your vehicle’s engine. It meticulously manages everything from fuel injection and ignition timing to emissions systems and transmission shifting. When this critical component begins to fail in your 2017 Buick Enclave, it can cause a cascade of confusing and frustrating problems, leaving you stranded or dealing with a vehicle that’s unreliable and inefficient. If you’re experiencing perplexing engine issues, a faulty ECM is a likely cause.
Common Symptoms of a Failing Engine Control Module
- ✔ Check Engine Light: The most common indicator. The light may be on constantly or flash, and you’ll likely have diagnostic trouble codes (DTCs) stored in the system.
- ✔ Engine Stalling or Misfiring: The engine may stall unexpectedly, either while driving or at idle. You might also notice rough idling, hesitation, or misfires.
- ✔ Poor Performance and Fuel Economy: A failing ECM can’t properly calculate the air-fuel mixture, leading to a noticeable drop in power, acceleration, and miles per gallon (MPG).
- ✔ No-Start Condition: In severe cases, the ECM can fail completely, preventing the engine from starting at all. The starter might crank, but there will be no ignition.
- ✔ Transmission Shifting Problems: The ECM works closely with the Transmission Control Module (TCM). A faulty ECM can cause harsh shifting, delayed engagement, or the transmission getting stuck in one gear.
- ✔ Intermittent Electrical Issues: Seemingly unrelated electrical problems can sometimes be traced back to a failing ECM that is sending incorrect signals throughout the vehicle’s network.
Your Direct-Fit Solution: The Programmed 2017 Enclave ECM
This isn’t just a replacement part; it’s a complete solution. This Engine Control Module, part number 12666070 (also compatible with 12667002 and 12667189), is the definitive fix for the issues plaguing your vehicle. What sets our service apart is the critical programming step we perform before the part ever leaves our facility. Using the Vehicle Identification Number (VIN) you provide, we flash the module with the latest, most stable software updates directly from GM. This ensures that the computer is a perfect match for your vehicle’s specific configuration, options, and emissions standards. This process eliminates the need for expensive programming at a dealership, saving you time and money.
By installing this pre-programmed ECM, you are restoring the vehicle’s brain to factory-specified operational parameters. This allows all engine systems to communicate and function as they were originally designed, resolving performance issues and ensuring your vehicle runs smoothly and efficiently for years to come.
Broad GM Compatibility
While this is a perfect fit for the 2017 Enclave ECM, this versatile module is also the correct component for a wide range of other GM vehicles. Please verify your part number and vehicle options before ordering.
- Buick Enclave: 2017 (behind fan shroud)
- Buick Regal: 2017 (LH engine compartment)
- Buick Verano: 2017
- Cadillac XTS: 2017-2019 (3.6L, VIN 3)
- Chevrolet Caprice: 2017 (3.6L)
- Chevrolet Traverse: 2017 (behind fan shroud)
- Chevrolet Impala: 2017-2019
- Chevrolet Equinox: 2017 (LH engine compartment)
- GMC Acadia: 2017 (Limited, VIN J)
- GMC Terrain: 2017 (LH engine compartment)
Frequently Asked Questions
Why do you need my VIN?
Your vehicle’s 17-digit VIN is essential. It allows us to program the ECM with the exact software and calibrations for your specific engine, transmission, and factory options. This ensures the module works perfectly right out of the box.
Is this ECM difficult to install?
The physical installation is typically straightforward, involving disconnecting the battery and swapping the module. However, after installation, some vehicles may require a security relearn procedure (often called a Passlock or anti-theft relearn), which can usually be done without special tools. We recommend consulting a service manual or a qualified technician.
Will this fix my check engine light?
If the check engine light and associated symptoms are caused by a faulty ECM, this part will resolve the issue. It’s crucial to have your vehicle properly diagnosed to confirm the ECM is the point of failure before ordering.
What if I have a different part number?
This module is a direct replacement for part numbers 12667002, 12666070, and 12667189. If your original module has one of these numbers, this part will fit and function correctly.
How long does the programming take?
The programming is completed after your purchase and once we receive your VIN. We typically program and ship the module within one business day to get you back on the road as quickly as possible.