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Fig. 487: Locating Coolant Temperature Sensor 10. Install sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the coolant temperature sensor (725). 11. Install the coolant temperature sensor into the left cylinder head. Tighten: Tighten the coolant temperature sensor to 20 N.m (15 lb ft). NOTE: Refer to Fastener Notice .
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 488: Locating Coolant Plug 12. Install sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the cylinder head plug (229). 13. Install the cylinder head plug to the right cylinder head. Tighten: Tighten the cylinder head plug to 20 N.m (15 lb ft).
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 489: Locating Cylinder Head Core Hole Plug 14. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489), or equivalent, to the sides of the cylinder head plugs (216). 15. Install the cylinder head plugs into the cylinder head. A properly installed plug should be installed 2.5 mm (0.1 in) below the end face of the OIL PUMP DISASSEMBLE
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
Fig. 490: Exploded View Of Oil Pump 1. Remove the oil pump cover bolts (408). 2. Remove the oil pump cover (409). 3. Remove the drive gear (410). 4. Remove the driven gear (412). 5. Remove the pressure relief valve plug (416). IMPORTANT: The internal parts of the oil pump assembly are not serviced separately, excluding the spring. If the oil pump components IMPORTANT: Mark or identify the gears for assembly. Refer to Separating Parts.
2008 Hummer H2 2008 ENGINE Engine Mechanical - 6.2L - H2
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