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Chevrolet Silverado / GMC Sierra. Manual - part 2207
Fig. 81: Fuel Rail
Courtesy of GENERAL MOTORS CORP.
4. Install the fuel rail assembly (510) to the manifold. Push firmly on both sides of the rail until
all the injectors have entered their bores.
5. Apply a 5 mm (0.2 in) band of threadlock GM P/N 12345382 (Canadian P/N 10953489),
or equivalent, to the threads of the fuel rail bolts. Refer to Sealers, Adhesives, and
Lubricants .
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
6. Install the fuel rail bolts (511).
Tighten: Tighten the fuel rail bolts to 10 N.m (89 lb in).
Fig. 82: EVAP Purge Valve & Tubes
Courtesy of GENERAL MOTORS CORP.
7. Install the evaporative emission (EVAP) canister purge solenoid valve (730) and tubes (729,
NOTE:
Refer to Fastener Notice .
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
735).
Fig. 83: View Of Fuel Rail Stop Bracket & Bolt
Courtesy of GENERAL MOTORS CORP.
8. Install the fuel rail stop bracket and bolt.
Tighten: Tighten the fuel rail stop bracket bolt to 50 N.m (37 lb ft).
THROTTLE BODY INSTALLATION
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. 84: Throttle Body Assembly
Courtesy of GENERAL MOTORS CORP.
1. Install the throttle body studs, as required.
Tighten: Tighten the throttle body studs to 6 N.m (53 lb in).
2. Install the throttle body gasket (509) to the intake manifold. Align the locating tab of the
gasket with the notch in the manifold.
3. Install the throttle body (508), bolts (538), and nuts (507).
Tighten: Tighten the throttle body nuts and bolts to 10 N.m (89 lb in).
NOTE:
Refer to Fastener Notice .
IMPORTANT: DO NOT use the throttle body gasket again. Install a NEW
gasket during assembly.
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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