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Fig. 116: Valve Lifter Oil Manifold IMPORTANT: Do not allow dirt or debris to enter the oil passages of Do not disassemble the electrical components from the Do not submerge the electrical components in cleaning
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
1. Do not lift the manifold assembly by the electrical lead frame. Fig. 117: View Of Oil Pressure Sensor, Washer And Valve Lifter Oil Filter 2. Remove the oil pressure sensor (706) and washer (707). 3. Remove the oil screen (452) with O-ring (454). Do not use the manifold exterior gasket again. Remove
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
4. Clean the manifold with compressed air. Fig. 118: Electrical Solenoids 5. Inspect for loose electrical solenoids (1-4) or loose or missing bolts. 6. Inspect for damage to the electrical lead frame (5). 7. Inspect for a damaged electrical connector, for bent or corroded pins. CAUTION: Refer to Safety Glasses and Compressed Air Caution .
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Fig. 119: Sealing Gaskets 8. Inspect for damaged interior sealing gaskets (1-8). If the interior sealing gaskets are damaged, the manifold must be replaced as an assembly. 9. Inspect for a damaged exterior sealing gasket (9) or scored gasket surfaces. 10. Inspect for debris or restrictions within the oil passages of the manifold. Refer to Cylinder Deactivation (Active Fuel Management) Valve Lifter Oil Manifold Diagnosis and VALVE ROCKER ARM COVER CLEANING AND INSPECTION
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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