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Chevrolet Silverado / GMC Sierra. Manual - part 2036
3. Install the oil pump bolts (411).
Tighten: Tighten the bolts to 25 N.m (18 lb ft).
Fig. 23: View Of Crankshaft Oil Deflector & Nuts
Courtesy of GENERAL MOTORS CORP.
4. Position the crankshaft oil deflector and install the nuts until snug.
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. 24: View Of Oil Pump Screen & O-Ring Seal
Courtesy of GENERAL MOTORS CORP.
5. Lubricate a NEW oil pump screen O-ring seal with clean engine oil.
6. Install the NEW O-ring seal onto the oil pump screen.
IMPORTANT: Push the oil pump screen tube completely into the oil pump
prior to tightening the bolt. Do not allow the bolt to pull the
tube into the pump.
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
7. Align the oil pump screen mounting brackets with the correct crankshaft bearing cap studs.
8. Install the oil pump screen.
9. Install the oil pump screen bolt and nuts.
Tighten:
1. Tighten the bolt to 12 N.m (106 lb in).
2. Tighten the nuts to 25 N.m (18 lb ft).
10. Install the engine front cover. Refer to Engine Front Cover Replacement (LC9, LH6,
LMG, LY2 and LY5) or Engine Front Cover Replacement (LY6, L76 and L92) .
11. Install the oil pan. Refer to Oil Pan Replacement (2WD) or Oil Pan Replacement
(4WD) .
TIMING CHAIN, CRANKSHAFT SPROCKET, CAMSHAFT POSITION ACTUATOR AND
SOLENOID VALVE REPLACEMENT
Special Tools
EN 46330 Timing Chain Tensioner Retaining Pin. See Special Tools .
J 8433 Puller Bar. See Special Tools .
J 41478 Crankshaft Front Oil Seal Installer. See Special Tools .
J 41558 Crankshaft Sprocket Remover. See Special Tools .
J 41665 Crankshaft Balancer and Sprocket Installer. See Special Tools .
J 41816-2 Crankshaft End Protector. See Special Tools .
J 42386-A Flywheel Holding Tool. See Special Tools .
J 45059 Angle Meter
Removal Procedure
1. Remove the oil pump. Refer to Oil Pump, Screen, and Crankshaft Oil Deflector
Replacement (LY6, L76 and L92) or Oil Pump, Screen, and Crankshaft Oil
Deflector Replacement (LH6, LMG, LY2 and LY5).
2. Remove the starter motor. Refer to Starter Motor Replacement (4.3L) or Starter Motor
Replacement (4.8L, 5.3L, 6.0L, and 6.2L) or Starter Motor Replacement (6.6L) .
NOTE:
Refer to Fastener Notice .
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. 25: View Of Special Tool & Bolts
Courtesy of GENERAL MOTORS CORP.
3. Install the J 42386-A (1) and bolts. See Special Tools . Use one M10-1.5 x 120 mm and
one M10-1.5 x 45 mm bolt for proper tool operation.
Tighten: Tighten the J 42386-A bolts to 50 N. See Special Tools .m (37 lb ft).
IMPORTANT: Ensure that the teeth of the J 42386-A mesh with the teeth of
the engine flywheel. See Special Tools .
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
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