Checking Engine Oil Pressure

Check oil pressure using gauge at oil pressure switch location. Oil pressure should be 34 kPa (5 psi.) at idle or 205 to 550 kPa (30-80 psi.) at 3000 RPM. Remove pressure sending unit and install oil pressure gauge. See Fig 2. Warm engine until thermostat opens.

Fig 1: Hydraulic Lash Adjuster

Courtesy of DAIMLERCHRYSLER CORP.

Fig 2: Checking Oil Pump Pressure

Courtesy of CHRYSLER CORP.