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Diagnosis And Testing - Checking Engine Oil Pressure

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
  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.
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