Envoy 2WD V8-5.3L VIN M (2005)
Engine Oil Pressure: Testing and Inspection
Displacement on Demand (Dod) Oil Pressure Relief Valve Diagnosis and Testing
Displacement on Demand (DoD) Oil Pressure Relief Valve Diagnosis and Testing
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Tools Required
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J 21867 Pressure Gage
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J-21867-16 Oil Pressure Adapter
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J 42907 Oil Pressure Tester
1. Important: This test is performed to verify the operation of the displacement on demand (DoD) oil pressure relief valve.
Remove the oil filter and install the J 42907.
2. Install the J 21867 or equivalent to the J 42907.
3. Remove the oil pressure sensor and install the J-21867-16.
