Chevrolet Silverado / GMC Sierra. Service manual — part 2029

Tighten:

Tighten the left side steering rack bolts to 200 N.m (148 lb ft).

Tighten the right side steering rack bolts to 100 N.m (74 lb ft).

Fig. 468: View Of Oil Pan Skid Plate & Bolts
Courtesy of GENERAL MOTORS CORP.

31. For 2500 series vehicles, position the oil pan skid plate and tighten until snug the 2 rear oil

pan skid plate bolts, install the 2 front oil pan skid plate bolts, if equipped.

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

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

32. For 1500 series vehicles, 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).

33. Lower the vehicle.

34. Fill the engine with NEW engine oil. Refer to Fluid and Lubricant Recommendations

and Approximate Fluid Capacities .

35. Start the engine and inspect for leaks.

OIL PRESSURE RELIEF VALVE REPLACEMENT

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

Removal Procedure

Fig. 470: View Of Oil Pressure Relief Valve Components
Courtesy of GENERAL MOTORS CORP.

1. Remove the oil pan. Refer to Oil Pan Replacement (2WD) or Oil Pan Replacement

(4WD).

2. Place the oil pan on a clean work surface.

3. Remove the oil pressure relief valve (455) and washer.

Installation Procedure

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. 471: View Of Oil Pressure Relief Valve Components
Courtesy of GENERAL MOTORS CORP.

1. Inspect the NEW oil pressure relief valve for proper operation. Lightly depress the ball (2).

The valve spring (1) should seat the ball to the proper closed position.

2. Install the NEW oil pressure relief valve (455) and washer.

3. Install the oil pan. Refer to Oil Pan Replacement (2WD) or Oil Pan Replacement

(4WD).

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