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LUBRICATION DESCRIPTION The lubrication system is a full flow filtration pressure feed type. DIAGNOSIS AND TESTING DIAGNOSIS AND TESTING - CHECKING ENGINE OIL PRESSURE 1. Remove oil pressure sending unit and install gauge assembly C-3292. 2. Run engine until thermostat opens. 3. Oil Pressure: • Curb Idle–25 kPa (4 psi) minimum • 3000 rpm–170 - 758 kPa (25 - 110 psi) 4. If oil pressure is 0 at idle, shut off engine. Check for a clogged oil pick-up screen or a pressure relief valve stuck open. DIAGNOSIS AND TESTING - ENGINE OIL LEAK Begin with a thorough visual inspection of the engine, particularly at the area of the suspected leak. If an oil leak 9 - 2572 ENGINE - 6.1L SERVICE INFORMATION LX |