LUBRICATION SYSTEM ON-VEHICLE INSPECTION
PROCEDURE
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CHECK ENGINE OIL LEVEL
Note
When the oil cooler assembly has been removed/installed or the oil cooler hose sub-assembly has been disconnected/reconnected, check the engine oil level after warming up the engine oil to between 100°C (212°F) and 120°C (248°F) to open the thermostat between the engine and oil cooler assembly.
*1 Oil Cooler Hose Sub-assembly *2 Oil Cooler Assembly
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Warm up and stop the engine, then wait for 5 minutes.
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Check that the engine oil level is between the low level and full level marks on the engine oil level dipstick.
If the level is low, check for engine oil leaks and add engine oil to the full level mark.
Note
Do not fill to above the full level mark.
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CHECK ENGINE OIL QUALITY
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Check the engine oil for deterioration, water intrusion, discoloration or thinning.
If the quality is visibly poor, replace the engine oil.
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CHECK ENGINE OIL PRESSURE
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Remove the engine oil pressure switch assembly.
CAUTION:
Make sure the engine is cold when removing the engine oil pressure switch assembly to prevent burns caused by hot engine oil.
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Install an oil pressure gauge.
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Warm up the engine.
Tech Tips
After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F).
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Check the engine oil pressure.
Standard Engine Oil Pressure At Idle At 3000 rpm 25 kPa (0.3 kgf/cm2, 3.6 psi) or more
150 to 550 kPa (1.5 to 5.6 kgf/cm2, 22 to 80 psi)
If the result is not as specified, check the quality of the engine oil and check the oil paths for clogging. Repair or replace if necessary. If the engine oil pressure is still not as specified, check the oil pump.
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Remove the oil pressure gauge.
CAUTION:
Make sure the engine is cold when removing the oil pressure gauge to prevent burns caused by hot engine oil.
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Install the engine oil pressure switch assembly.
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Inspect for engine oil leaks.
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