Chevrolet Silverado / GMC Sierra. Service manual — part 2013

Fig. 406: View Of Oil Pan & Bolts
Courtesy of GENERAL MOTORS CORP.

29. Remove the oil pan bolts.

30. Remove the oil pan.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 407: Drilling Oil Pan Gasket Retaining Rivets
Courtesy of GENERAL MOTORS CORP.

31. If reusing the oil pan perform the following steps, otherwise proceed to step 3 of the

installation procedure.

32. Drill out the oil pan gasket rivets (2), if necessary.

IMPORTANT: DO NOT allow foreign material to enter the oil passages of

the oil pan, cap or cover the openings as required.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

33. Remove the oil pan gasket (1) from the pan.

34. Discard the oil pan gasket.

35. Discard the rivets, if necessary.

Installation Procedure

IMPORTANT:

The alignment of the structural oil pan is critical. The rear
bolt hole locations of the oil pan provide mounting points for
the transmission bellhousing. To ensure the rigidity of the
powertrain and correct transmission alignment, it is
important that the rear of the block and the rear of the oil pan
must NEVER protrude beyond the engine block and
transmission bellhousing plane.

Do not reuse the oil pan gasket.

It is not necessary to rivet the NEW gasket to the oil pan.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado

Fig. 408: View Of Sealant Applied To Front Oil Pan-To-Engine Block Junction
Courtesy of GENERAL MOTORS CORP.

1. If reusing the oil pan perform the following step, otherwise proceed to step 3.

2. Place a NEW oil pan gasket onto the oil pan.

3. Apply a 5 mm (0.20 in) bead of sealant, 20 mm (0.80 in) long to the engine block. Apply

the sealant directly onto the tabs of the front cover gasket that protrudes into the oil pan

IMPORTANT: Be sure to align the oil gallery passages in the oil pan and

engine block properly with the oil pan gasket.

2008 Chevrolet Silverado 1500

2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,

Sierra & Silverado