STS RWD V8-4.6L (2007)
Engine Oil Pressure: Testing and Inspection
Oil Pressure Diagnosis and Testing
Tools Required
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J 21867 Pressure Gage
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J 42907 Oil Pressure Tester
1. With the vehicle on a level surface, run the vehicle for a few minutes, allow adequate drain down time, 2-3 minutes, and measure the oil level.
2. If required, add the recommended grade engine oil and fill the crankcase until the oil level measures full on the oil level indicator.
3. Run the engine briefly, 10-15 seconds, and verify low or no oil pressure on the vehicle gage or light.
4. Listen for a noisy valve train or a knocking noise.
5. Inspect for the following conditions:
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Oil diluted by water or glycol antifreeze
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Foamy oil
6. Remove the oil filter.
