Valve Lifter Oil Manifold Cleaning and Inspection
WARNING: This page is about a different variant/trim than selected.
NOTE:
- DO NOT allow dirt or debris to enter the oil passages of the Valve Lifter Oil Manifold (VLOM). Plug, as required.
- DO NOT disassemble the electrical components from the VLOM.
- DO NOT submerge the electrical components in cleaning solvent.
- DO NOT use the VLOM outer gasket again. Remove the VLOM outer gasket and install a NEW VLOM outer gasket during assembly.
DO NOT lift the VLOM (2) by the electrical lead frame (1).
Remove the oil pressure sensor (1) from the VLOM.
- Remove the VLOM plug (2).
- Remove the VLOM filter (3).
- Remove the PCV valve assembly (4).
- Inspect the PCV valve seals for cuts, tears or damage.
- Inspect the oil pressure sensor and oil pressure sensor boss threads for damage.
- Inspect the VLOM plug and VLOM plug boss threads for damage.
- Inspect the VLOM filter for cuts, tears, damage or foreign material.
- Clean the VLOM with compressed air.
Inspect for loose electrical solenoids (1 - 4) or loose or missing bolts.
- Inspect for damage to the electrical lead frame (5).
- Inspect for a damaged electrical connector, for bent or corroded pins.
Inspect for damaged VLOM inner gaskets (1 - 8). If the VLOM inner gaskets are damaged, the VLOM must be replaced as an assembly.
- Inspect for a damaged VLOM outer gasket (9) or scored gasket surfaces.
- Inspect for debris or restrictions within the oil passages of the VLOM. Refer to Cylinder Deactivation (Active Fuel Management) Valve Lifter Oil Manifold Diagnosis and Testing .
WARNING:
Refer to Safety Glasses and Compressed Air Warning .