Where is the camshaft position sensor located on the Buick LaCrosse?
2 Answers
Buick LaCrosse's camshaft position sensor is located at the tail end of the camshaft. Additional information: 1. Camshaft Position Sensor: The camshaft position sensor is a sensing device, also known as a synchronization signal sensor. It serves as a cylinder identification and positioning device, providing the ECU with camshaft position signals, which are the primary control signals for ignition. 2. Function: A malfunctioning camshaft position sensor can lead to reduced vehicle power and increased fuel consumption; it may cause the computer to spray fuel disorderly, resulting in excessive fuel consumption, rough idling, and inability to increase engine speed. The camshaft position sensor also determines the ignition sequence. If damaged, it can cause ignition failure and difficulties in starting the engine.
On the Buick LaCrosse, the camshaft position sensor is usually hidden in the engine compartment. My car is a 2016 LaCrosse 2.4L, and after opening the hood, you can find it stuck near the camshaft cover, located on the left side close to the intake manifold, with a thick wire connected to it. If the sensor fails, the car may have difficulty starting or experience shaky acceleration. I encountered this issue before, and the unstable idle speed really startled me. Finding its location is quite simple—just lift the hood and look directly at the camshaft area. There’s usually a small metal or plastic box fixed there, but be careful not to touch the surrounding pipes. The position varies slightly depending on the model year. For example, earlier models might have it positioned more inward, but it’s generally not hard to locate. I suggest checking it yourself before sending it for repairs—it saves both money and hassle. After all, the sensor’s position is easy to identify, so don’t let a mechanic trick you into replacing major components.
