Chevrolet Silverado / GMC Sierra. Service manual — part 1824

Fig. 123: View Of Left Rear CPA Retainer & Engine Wiring Harness Electrical
Connector
Courtesy of GENERAL MOTORS CORP.

18. Connect the left rear HO2S electrical connector to the engine wiring harness electrical

connector (3).

19. Install the left rear CPA retainer (1).

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

Fig. 124: View Of Engine Wiring Harness Electrical Connectors, (CPA) Retainers &
Engine Harness Clips
Courtesy of GENERAL MOTORS CORP.

20. Install the right rear HO2S electrical connector clip to the engine harness clip (5).

21. Connect the engine wiring harness electrical connector (3) to the right rear HO2S electrical

connector.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

22. Install the right rear CPA retainer (4).

23. Connect the right front HO2S electrical connector to the engine wiring harness electrical

connector (1).

24. Install the right front CPA retainer (2).

Fig. 125: View Of Oil Pan Skid Plate & Bolts
Courtesy of GENERAL MOTORS CORP.

25. Install the transmission crossmember. Refer to Transmission Support Crossmember

Replacement (2WD 2500 HD/3500) or Transmission Support Crossmember
Replacement (2WD 1500/2500) or Transmission Support Crossmember Replacement
(4WD 1500/2500) or Transmission Support Crossmember Replacement (4WD 2500
HD/3500) .

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado

26. Position the oil pan skid plate and install the oil pan skid plate bolts, if equipped.

Tighten: Tighten the bolts to 28 N.m (21 lb ft).

27. Lower the vehicle.

CATALYTIC CONVERTER REPLACEMENT (6.6L)

Removal Procedure

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Exhaust - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado