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Home >> Jeep >> 2021 >> Grand Cherokee L Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (5.7L - Engine (Service Information)) >> Lubrication >> Diagnosis And Testing >> Checking Engine Oil Pressure

Checking Engine Oil Pressure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the oil pressure sensor. Refer to SENSOR, OIL PRESSURE, REMOVAL AND INSTALLATION, 5.7L .
  2. Install gauge assembly (special tool #C-3292A, Gauge, Pressure).
  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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