LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2004 >> Regal LS >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 3.8L >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Oil Level Sensor and/or Switch Replacement >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

    Fig 1: Oil Level Sensor
    GM441263Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install the engine oil level sensor to the oil pan.

    Tighten:  Tighten the sensor to 20 N.m (15 lb ft).

  2. Connect the oil level sensor electrical connector.
  3. Fig 2: Locating Engine Oil Drain Plug
    GM190564Courtesy of GENERAL MOTORS CORP.
  4. Install the engine oil drain plug.

    Tighten:  Tighten the plug to 30 N.m (22 lb ft).

  5. Lower the vehicle.
  6. Fill the crankcase with engine oil. Refer to Engine Oil and Oil Filter Replacement .