Chevrolet Silverado / GMC Sierra. Service manual — part 1678

Fig. 253: View Of Oil Pan Skid Plate & Bolts
Courtesy of GENERAL MOTORS CORP.

10. For 1500 series vehicles position and install the oil pan skid plate and bolts, if equipped.

Tighten: Tighten the bolts to 20 N.m (15 lb ft).

11. Lower the vehicle.

12. Fill the cooling system/engine block. Refer to Cooling System Draining and Filling

(Vac-N-Fill) or Cooling System Draining and Filling (Static Fill).

COOLANT HEATER REPLACEMENT (L76, L92)

Removal Procedure

2008 Chevrolet Silverado 1500

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

Fig. 254: View Of Oil Pan Skid Plate & Bolts
Courtesy of GENERAL MOTORS CORP.

1. Drain the cooling system/engine block. Refer to Cooling System Draining and Filling

(Vac-N-Fill) or Cooling System Draining and Filling (Static Fill).

2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .

3. Remove the oil pan skid plate bolts and plate, if equipped.

2008 Chevrolet Silverado 1500

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

Fig. 255: Locating Oil Cooler Hose Bracket & Adapter Bolts
Courtesy of GENERAL MOTORS CORP.

4. For vehicles with regular production option (RPO) L76 (6.0L), perform the following steps.

Otherwise, proceed to step 9.

5. Remove the oil cooler hose bracket bolt (1), if equipped.

6. Remove the oil cooler hose adapter bolts (2), if equipped.

7. Remove and discard the oil cooler hose adapter gasket, if equipped.

8. Position the oil cooler hose adapter end out of the way, if equipped.

2008 Chevrolet Silverado 1500

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

Fig. 256: View Of Coolant Heater Cord
Courtesy of GENERAL MOTORS CORP.

9. Disconnect the coolant heater cord electrical connector.

2008 Chevrolet Silverado 1500

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