Lexus IS250 · Service Manual ENGINE

ON-VEHICLE INSPECTION

Inspection


CHECK ENGINE OIL LEVEL

  1. Warm up the engine, stop the engine and wait 5 minutes. The oil level should be between the dipstick's low level mark and full level mark.
    If low, check for leakage and add oil up to the full level mark.

    NOTICE:
    Do not fill with engine oil above the full level mark.


CHECK ENGINE OIL QUALITY

  1. Check the oil for deterioration, water contamination, discoloring or thinning.

    A107633E06
    If the quality is visibly poor, replace the oil.

    Oil grade:
    API grade SM, Energy-Conserving or ILSAC, multi-grade engine oil is recommended. SAE 5W-30 is the best choice for your vehicle for good fuel economy and good starting in cold weather.


REMOVE ENGINE UNDER COVER

REMOVE ENGINE OIL PRESSURE SWITCH ASSEMBLY

  1. A110658
    Disconnect the oil pressure switch connector.

  1. Using a 24 mm deep socket wrench, remove the oil pressure switch.


INSTALL OIL PRESSURE GAUGE

  1. A110705
    Install the oil pressure gauge with adapter.


CHECK OIL PRESSURE

Specification oil pressure:
Item
 Oil Pressure
Idle
 80 kPa (0.8 kgf*cm2 , 11.6 psi) or more
6,000 rpm
 380 kPa (3.9 kgf*cm2 , 55.5 psi) or more

If pressure is not as specified, check the oil pump.

INSTALL ENGINE OIL PRESSURE SWITCH ASSEMBLY

  1. A050082E04
    Remove the oil pressure gauge.

  1. Apply adhesive to 2 or 3 threads of the oil pressure switch.

    Adhesive:
    Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent

  1. A110658
    Using a 24 mm deep socket wrench, install the oil pressure switch.

    Torque:
    15 N*m{ 153 kgf*cm , 11 ft.*lbf }

    NOTICE:
    Do not start the engine within 1 hour after installation.

  1. Connect the oil pressure switch connector.


CHECK FOR ENGINE OIL LEAKS

  1. Start the engine. Make sure that no oil leaks from the connection point of the oil filter cap.


INSTALL ENGINE UNDER COVER
← INSTALLATIONCOMPONENTS →