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Home >> Jeep >> 2023 >> Wagoneer Carbide, RWD >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> 5.7L - Engine (Service Information) (3 Of 3) >> Lubrication >> Diagnosis And Testing >> Checking Engine Oil Pressure

Checking Engine Oil Pressure

  1. Remove the oil pressure sensor. Refer to ENGINE SENSORS, REMOVAL AND INSTALLATION, 5.7L .
  2. Install the (special tool #C-3292A, Gauge, Pressure) assembly.
  3. Run the engine until the thermostat opens.
  4. Oil Pressure:
    • Curb Idle-25 kPa (4 psi) minimum amount of pressure to lubricate engine
    • 1000 rpm-234 kPa (34 psi) for a VVT engine to activate VVT
    • 3000 rpm-170 - 758 kPa (25 - 110 psi)
  5. 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.
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