Buick Regal/Century/Royale/GL8 Crankshaft Position Sensor 12567649 HOP

Your Buick LaCrosse, Century, Regal, or GL8 may stall suddenly, have difficulty starting, or the engine warning light illuminate with rough idle and weak acceleration. This is a typical symptom of aging or failed crankshaft position sensor. When functioning normally, this sensor monitors crankshaft RPM and position and transmits signals to the ECU to control ignition and fuel injection timing, ensuring smooth engine operation. OEM number 12567649, compatible with Buick LaCrosse, Century, Regal, and GL8 models. installation notes: operate only with a cold engine, ensure the clearance between the sensor and the crankshaft gear ring (usually 0.5-1.5 mm) is correct, and clean mounting holes to avoid interference from debris.