Where is the crank sensor on a 97 Bonneville 3.8 liter engine?

On a 1997 Pontiac Bonneville with a 3.8L engine, the crankshaft position sensor (CKP sensor) is typically located on the passenger side (right side) of the engine block, near the front of the engine, close to the crankshaft pulley. It's often mounted on a bracket or directly to the engine block itself.

However, the exact location can vary slightly depending on the specific engine configuration. You'll likely need to consult a repair manual specific to your 1997 Bonneville 3.8L engine to get the most precise location. A picture in the repair manual will be very helpful.

To find it, consider these points:

* Access: The sensor is usually fairly accessible, but you might need to remove some components (like the serpentine belt or other accessories) for a clear view and better access to the sensor.

* Wiring Harness: Look for a sensor with a wiring harness connected to it near the crankshaft pulley.

* Shape: It's generally a small, cylindrical sensor.

Remember to always disconnect the negative battery terminal before working on any sensors or electrical components.