Chevrolet Silverado / GMC Sierra. Service manual — part 29

Fig. 59: Purge Solenoid & Nut
Courtesy of GENERAL MOTORS CORP.

28. If required, remove the EVAP canister purge solenoid valve studs.

29. Remove the purge solenoid valve.

30. Clean and inspect the intake manifold - upper, if necessary. Refer to Intake Manifold

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

Cleaning and Inspection.

Installation Procedure

Fig. 60: Purge Solenoid & Nut
Courtesy of GENERAL MOTORS CORP.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

1. If required, install the purge solenoid valve.

2. Install the EVAP canister purge solenoid valve studs. If reusing the old studs, apply

threadlock to the threads. Refer to Sealers, Adhesives, and Lubricants for the correct part
number.

Tighten: Tighten the studs to 10 N.m (89 lb in).

Fig. 61: MAP Sensor
Courtesy of GENERAL MOTORS CORP.

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado

3. If required, install a NEW MAP sensor seal. Apply a small drop of clean engine oil to the

seal.

4. Install the MAP sensor.

Fig. 62: View Of Throttle Body & Gasket
Courtesy of GENERAL MOTORS CORP.

5. If required, install a NEW throttle body gasket.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.3L - Sierra & Silverado