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Chevrolet Silverado / GMC Sierra. Manual - part 2205
2. Tighten the intake manifold bolts (1-10) a final pass in sequence to 10 N.m (89 lb in).
Fig. 73: MAP Sensor
Courtesy of GENERAL MOTORS CORP.
5. Install the fuel rail. Refer to Fuel Rail and Injectors Installation.
6. Lubricate the manifold absolute pressure (MAP) sensor grommet (715) with clean engine
oil.
7. Install the grommet onto the MAP sensor (714).
8. Install the MAP sensor and retainer (736).
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. 74: View Of PCV Dirty-Air Hose
Courtesy of GENERAL MOTORS CORP.
9. Install the positive crankcase ventilation (PCV) hose - dirty air (716).
INTAKE MANIFOLD INSTALLATION (RPO LH6/LMG/LY5/LC9/L76)
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. 75: View Of Intake Manifold-To-Cylinder Head Gasket
Courtesy of GENERAL MOTORS CORP.
1. Install NEW intake manifold-to-cylinder head gaskets (514).
IMPORTANT:
The intake manifold, throttle body, fuel injection rail, and
fuel injectors may be removed as an assembly. If not
servicing the individual components, install the intake
manifold as a complete assembly.
DO NOT use the intake manifold gaskets again. Install
NEW intake manifold-to-cylinder head gaskets.
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. 76: Intake Manifold
Courtesy of GENERAL MOTORS CORP.
2. Install the intake manifold (500).
3. Apply a 5 mm (0.20 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489)
to the threads of the intake manifold bolts (512). Refer to Sealers, Adhesives, and
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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