Is Your GM 3.6L Engine Running Rough, Stalling, or Refusing to Start?
If you’re dealing with frustrating and unpredictable engine problems in your 2010-2011 GM vehicle, the culprit is often the one component you can’t easily see or test: the Engine Control Module (ECM). As a technician with over 20 years of experience, I’ve seen firsthand how a failing ECM can mimic a dozen other issues, leading to wasted time and money on incorrect repairs. Your vehicle might be throwing a confusing array of diagnostic trouble codes (DTCs), or worse, none at all. The symptoms can be maddeningly intermittent, leaving you stranded without warning.
“A customer’s 2011 Traverse came in last week with these exact symptoms. It would stall at red lights, sometimes refuse to restart for 20 minutes, and had a persistent check engine light. They had already replaced the throttle body and a camshaft sensor with no luck. After connecting my scan tool and seeing erratic data pids for fuel trim and injector pulse width that made no sense, I suspected the ECM. The module was failing internally, sending corrupt commands to the very parts the owner had just replaced. It’s a classic case of the ‘brain’ going bad, not the ‘limbs’.”
The Core of the Problem: A Failing Engine Computer
The ECM is the central command center for your engine. It processes information from dozens of sensors to precisely control the fuel injection, ignition timing, emissions systems, and more. Over time, heat, vibration, and electrical stress can cause internal components on the circuit board to fail. This leads to a host of performance issues, including:
- ✔ Check Engine Light with various, often unrelated, trouble codes.
- ✔ Intermittent or complete no-start conditions.
- ✔ Stalling while driving or at idle.
- ✔ Poor fuel economy and rough idling.
- ✔ Hesitation or loss of power during acceleration.
- ✔ Communication errors with diagnostic scan tools.
The Solution: A Reliable, Pre-Programmed ECM
Don’t keep throwing parts at the problem. This Engine Control Module is a direct-fit replacement, meticulously tested and prepared to restore your vehicle’s proper function. The most critical part of the process is the programming, and we handle that for you. When you order, simply provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). We will then flash the module with the latest, most stable software calibration directly from General Motors. This ensures the ECM is perfectly matched to your vehicle’s specific configuration, from the engine and transmission to the emissions equipment.
Special Note for Camaro and LaCrosse Owners
For 2010-2011 Chevrolet Camaro and Buick LaCrosse models, the factory anti-theft system (immobilizer) is deeply integrated into the original ECM. To ensure a true plug-and-play installation without needing a trip to the dealer, we require your original module. We have a specialized process to securely read the immobilizer data from your old unit and transfer it to the new one. Once you place your order, we will contact you with simple instructions for this step. This service saves you hundreds in dealership programming fees and associated hassles.
Guaranteed Compatibility and Fitment
This ECM is a direct replacement for multiple GM part numbers, ensuring wide compatibility. Please verify your original part number is on this list or that your vehicle is listed below.
Compatible Part Numbers: 19300015, 19300014, 12617230, 12636355, 12635019
This part will fit these makes and models with these options:
- ✔ ACADIA 10-11: Electronic Control Module; (behind fan shroud)
- ✔ ALLURE 10: Electronic Control Module; (LH engine compartment), 3.6L
- ✔ CAMARO 10-11: Electronic Control Module; 3.6L
- ✔ CTS 10-11: Electronic Control Module; (RH front engine compartment), 3.6L
- ✔ ENCLAVE 10-11: Electronic Control Module; (behind fan shroud)
- ✔ LACROSSE 10-11: Electronic Control Module; (LH engine compartment), 3.6L
- ✔ OUTLOOK 10: Electronic Control Module; (behind fan shroud)
- ✔ STS 10-11: Electronic Control Module; (RH engine), (3.6L)
- ✔ TRAVERSE 10-11: Electronic Control Module; (behind fan shroud)