Camshaft Position Actuators

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Inspecting Front Of Exhaust Camshaft Position Actuators

Courtesy of GENERAL MOTORS CORP.

Inspect the front of the exhaust camshaft position actuators for the following:
- Sprocket damage (1)
- Reluctor/sensor wheel damage (2)
- Camshaft position actuator bolt seating/sealing inner hub flange damage (3)

Fig 2: Identifying Exhaust Camshaft Position Actuators Inspection Areas

Courtesy of GENERAL MOTORS CORP.

Inspect the back of the exhaust camshaft position actuators for the following:
- Sprocket damage (1)
- Camshaft locating pin damage (2)
- Camshaft seating/sealing inner hub flange damage (3)
- Blockage to the oil passages (4)
- Loose or missing housing bolts (5)

Fig 3: Inspecting Front Intake Camshaft Position Actuators

Courtesy of GENERAL MOTORS CORP.

Inspect the front of the intake camshaft position actuators for the following:
- Sprocket damage (1)
- Reluctor/sensor wheel damage (2)
- Camshaft position actuator oil control valve bolt seating/sealing inner hub flange damage (3)

Fig 4: Identifying Exhaust Camshaft Position Actuators Inspection Areas

Courtesy of GENERAL MOTORS CORP.

Inspect the back of the intake camshaft position actuators for the following:
- Sprocket damage (1)
- Camshaft locating pin damage (2)
- Camshaft seating/sealing inner hub flange damage (3)
- Blockage to the oil passages (4)
- Loose or missing housing bolts (5)
Replace a damaged camshaft position actuator.