Chevrolet Silverado / GMC Sierra. Service manual — part 480

6. Remove the CKP sensor bolt and sensor.

7. Remove the CKP sensor spacer bolts and spacer.

8. Remove and discard the O-rings from the sensor and the spacer.

Fig. 227: View Of Upper Oil Pan To Engine Front Cover Bolts
Courtesy of GENERAL MOTORS CORP.

9. Remove the upper oil pan to engine front cover bolts.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 228: View Of Engine Front Cover
Courtesy of GENERAL MOTORS CORP.

10. Remove the engine front cover bolts.

11. Separate the engine front cover from the cylinder block and upper oil pan using J 37228 .

See Special Tools .

12. Remove the engine front cover.

IMPORTANT: Do not bend the turbocharger coolant pipe.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 229: View Of Pressure Relief Valve O-Ring
Courtesy of GENERAL MOTORS CORP.

13. If necessary, remove the pressure relief valve O-ring.

14. Clean and inspect the front cover. Refer to Engine Front Cover Cleaning and

Inspection .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Installation Procedure

Fig. 230: View Of Pressure Relief Valve O-Ring
Courtesy of GENERAL MOTORS CORP.

NOTE:

Refer to Fastener Notice .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 6.6L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado