Chevrolet Silverado / GMC Sierra. Service manual — part 1939
24. Tighten the intake manifold bolts (512) until snug.
Fig. 134: Identifying Intake Manifold Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
25. Tighten the intake manifold bolts to specifications.
Tighten:
Tighten the bolts a first pass in the sequence shown to 5 N.m (44 lb in).
Tighten the bolts a final pass in the sequence shown to 10 N.m (89 lb in).
harness up out of the way so the upper intake manifold cover
does not get caught against the engine harness.
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. 135: View Of PCV Hose
Courtesy of GENERAL MOTORS CORP.
26. Position and install the PCV hose to the intake manifold fitting.
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. 136: View Of EVAP Canister Purge Tube & Quick Connect Fitting
Courtesy of GENERAL MOTORS CORP.
27. Connect the fuel feed line quick connect fitting (2) to the fuel rail. Refer to Metal Collar
Quick Connect Fitting Service .
28. Connect the EVAP canister purge tube (1) quick connect fitting to the EVAP canister purge
solenoid. Refer to Plastic Collar Quick Connect Fitting Service .
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. 137: View Of Brake Booster Vacuum Hose & Booster Fitting
Courtesy of GENERAL MOTORS CORP.
29. Unsecure the brake booster vacuum hose from the intake manifold.
30. Install the brake booster vacuum hose to the booster fitting.
31. Position the brake booster vacuum hose clamp at the booster.
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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