Disassemble Procedure
Remove - EN-52462-A Camshaft Tool
Camshaft Position Actuator Bolt (1) - Remove [12x]
- Rotate the actuator clockwise and counter clockwise to loosen up the O-ring in the camshaft housing bore. The actuator can be rotated slightly to loosen up the O-ring in the bore.
- Do NOT pry the actuator loose from the housing using any lever such as screw driver. Prying the actuator between the flange plate to the cover boss can separate the guide from the flange plate.
- Camshaft Position Actuator (2) - Remove [6x]
- Camshaft Position Actuator Seal (3) - Remove and DISCARD [6x]
Camshaft Position Sensor Bolt (1) - Remove [6x]
- Camshaft Position Sensor (2) - Remove [6x]
- Camshaft Position Sensor Seal (3) - Remove and DISCARD [6x]
- Positive Crankcase Ventilation Valve (4)
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Courtesy of GENERAL MOTORS COMPANY
Camshaft Bearing Cap Bolt - Loosen the bolts in the sequence shown. [12x]
- Camshaft Bearing Cap Bolt - Remove [12x]
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Courtesy of GENERAL MOTORS COMPANY
Camshaft Bearing Cap Bolt - Loosen the bolts in the sequence shown. [14x]
- Camshaft Bearing Cap Bolt - Remove [14x]
Camshaft Bearing Cap (1, 2, 3) - Remove [3x]
Intake Camshaft (2) - Remove
- Exhaust Camshaft (1) - Remove
- Camshaft Cover Opening Plug (3) Not serviceable
Tamper Proof Positive Crankcase Ventilation (PCV) Valve - Fresh Air: Do not attempt to remove the PCV valve by prying or twisting the PCV valve to separate the valve from the mating cover or component. Prying or twisting the PCV valve will result in fracture of one or more valve retention tabs which can fall into the engine resulting in internal engine damage. Remove the PCV valve mating cover or component from the engine before attempting to remove the PCV valve.
Use care around the positive crankcase ventilation valve to ensure you do not break the 3 tabs that hold it to the camshaft carrier.