Chevrolet Silverado / GMC Sierra. Service manual — part 1676

Fig. 245: View Of Oil Pan Skid Plate & Bolts
Courtesy of GENERAL MOTORS CORP.

4. For 2500 series vehicle, remove the front 2 oil pan skid plate bolts, loosen the 2 rear bolts

and remove the skid plate, if equipped.

2008 Chevrolet Silverado 1500

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

Fig. 246: Locating Oil Cooler Hose Bracket & Adapter Bolts
Courtesy of GENERAL MOTORS CORP.

5. For vehicles with regular production option (RPO) LY6 (6.0L) perform the following steps

otherwise proceed to step 10.

6. Remove the oil cooler hose bracket bolt (1).

7. Remove the oil cooler hose adapter bolts (2).

8. Remove and discard the oil cooler hose adapter gasket.

9. Reposition the oil cooler hose adapter end out of the way.

2008 Chevrolet Silverado 1500

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

Fig. 247: View Of Coolant Heater Cord
Courtesy of GENERAL MOTORS CORP.

10. Disconnect the coolant heater cord electrical connector.

2008 Chevrolet Silverado 1500

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

Fig. 248: Locating Coolant Heater
Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Do not score the surface of the engine block hole when

removing the coolant heater.

2008 Chevrolet Silverado 1500

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