Tools Required

J 41712  Oil Pressure Switch Socket

Fig 1: Removing & Installing Oil Pressure Sensor Using J 41712
Courtesy of GENERAL MOTORS CORP.
1. Remove the oil pressure sensor using J 41712  (1).
Fig 2: View Of Camshaft Rear Bearing Hole Plug
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2. Remove the camshaft rear bearing hole plug:
   1. Obtain a suitable self-threading screw.
   2. Drill a hole into the plug.
   3. Install the self-threading screw.
   4. Pull on the screw until the plug is removed from the bore.
   IMPORTANT: Use care not to damage the camshaft bearings.
   5. An alternate method to remove the plug would be to insert a long shaft or bar through the front of the engine and drive the plug from the bore.
Fig 3: View Of Left Side Knock Sensor Heat Shield & Bolts
Courtesy of GENERAL MOTORS CORP.
3. Remove the left side knock sensor heat shield bolts.
4. Remove the left side knock sensor heat shield.
Fig 4: View Of Left Side Knock Sensor
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5. Remove the left side knock sensor.
Fig 5: View Of Right Side Knock Sensor, Heat Shield & Bolts
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6. Remove the right side knock sensor heat shield (720) and bolts (721).
7. Remove the right side knock sensor (719).
Fig 6: View Of Engine Block Oil Cooler Hose Fittings
Courtesy of GENERAL MOTORS CORP.
8. Remove the engine block oil cooler hose fittings.
Fig 7: View Of Rear Oil Gallery Plugs
Courtesy of GENERAL MOTORS CORP.
9. Remove the rear oil gallery plugs.
Fig 8: View Of Front Oil Gallery Plugs
Courtesy of GENERAL MOTORS CORP.
10. Remove the front oil gallery plugs.
Fig 9: View Of Engine Block Left Oil Gallery Plug
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11. Remove the left side oil gallery plug.
Fig 10: View Of Top Oil Gallery Plugs
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12. Remove the top oil gallery plugs.
Fig 11: View Of Engine Coolant Drain Hole Plug
Courtesy of GENERAL MOTORS CORP.
13. Remove the engine block coolant drain hole plug.
Fig 12: View Of Engine Block Coolant Heater
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14. Remove the engine block coolant heater, if equipped.