The crankshaft position sensor on a 2012 Buick Regal is mounted on the front of the engine, near the timing cover and crank pulley; the exact spot depends on which engine your car uses (2.0L turbo or 2.4L).
Engine options and sensor location
2.0L turbo (LTG) engine
In the 2.0L turbo LTG engine, the crankshaft position sensor is located on the front side of the engine block, near the timing cover and crank pulley. It is typically accessed from the engine bay with some components possibly moved or removed (such as the splash shield or intercooler piping) to gain clear access to the sensor and its connector. The wiring harness runs toward the front of the engine toward the main loom.
2.4L naturally aspirated engine
For the 2.4L engine, the crankshaft position sensor is similarly placed on the front of the engine block, adjacent to the timing cover and crank pulley. Access may require removing the front splash shield; the sensor connects to a small 2- or 3-pin harness that heads toward the engine bay wiring harness.
How to locate it yourself
Use these steps to locate the CKP sensor on your Regal and confirm its position.
- Park on a flat surface, engage parking brake, and open the hood.
- If needed, remove the front splash shield or any obstructing components to gain a clear view of the timing cover area.
- Look for a small sensor mounted on the front of the timing cover near the crank pulley; it will have a short wiring connector (usually 2–3 wires).
- Trace the sensor’s wiring toward the main engine harness to confirm you’ve found the correct component.
With the engine exposed and the front components cleared, you should clearly see the CKP sensor mounted to the timing cover near the crank pulley. This is the component you would inspect or replace if diagnosing CKP-related issues.
Tools and tips for accessing the sensor
Having the right tools and precautions helps you locate and service the CKP sensor safely and efficiently.
- Socket set and metric sockets for removing nearby covers or shields
- Torx or hex drivers if fasteners require them
- Reliable flashlight or work light to inspect the sensor area
- Electrical contact cleaner for connector pins
- Dielectric grease for reassembly of electrical connectors
- Gloves and eye protection
Preparing with the proper tools reduces the risk of damaging the sensor wiring or surrounding components during inspection or replacement.
Summary
On a 2012 Buick Regal, the crankshaft position sensor is mounted at the front of the engine, near the timing cover and crank pulley. The exact placement is similar across the two main engines for that year (2.0L turbo LTG and 2.4L), though access may vary slightly. If you’re diagnosing CKP-related issues, begin by locating the sensor in front of the engine, then inspect the connector and wiring for corrosion or damage before testing or replacing the unit.