Camshaft Position Actuator Solenoid Valve Inspection (On-Vehicle)
WARNING: This page is about a different car, the 2017 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- With the CMP magnet removed, inspect for a sticking valve spool or broken valve spool spring.
- Depress the valve spool into the housing. The valve should move freely with no binding or sticking and minimal resistance inward. When released, the valve spring should return the spool to the proper extended position (1) of 6.08 - 6.12 mm (0.239 - 0.241 in).
NOTE:
Do not use the camshaft position (CMP) actuator solenoid valve again. Install a NEW valve during assembly. The inspection procedure below is provided for on-vehicle diagnostic purposes only.