LaCrosse V6-3.6L (2007)
7. Remove the oil pressure sensor.
8. Install the J 21867 with the J-21867-6 adapter.
9. Measure the engine oil pressure.
10. Compare the readings to the Engine Mechanical Specifications.
11. If the engine oil pressure is below specifications, inspect the engine for one or more of the following:
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Loose oil filter adapter bolts
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Missing or damaged oil filter adapter O-ring seal or seals
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Worn or dirty oil pump
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Loose oil pump-to-engine block bolts
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Loose, plugged or damaged oil pump screen
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Missing or damaged oil pump screen O-ring seal
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Damage or leak in the oil pump screen suction tube
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Malfunctioning oil pump pressure regulator valve
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Missing or incorrectly installed oil gallery plugs
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Loose camshaft intermediate drive shaft bolts
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Excessive bearing clearance for the following:
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Connecting rod or rods
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Crankshaft
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Camshaft or camshafts
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Camshaft intermediate drive shaft sprocket
*
Cracked, porous or restricted oil galleries
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Broken valve lifters
12. Repair or replace components as necessary.
