GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 LeSabre 🢒 Engine 🢒 Engine Mechanical - 3.8L 🢒 Manifold Absolute Pressure Sensor Replacement

Manifold Absolute Pressure Sensor Replacement VIN K

On VIN K applications, the manifold absolute pressure (MAP) sensor is mounted to the positive crankcase ventilation (PCV) valve cover.

Removal Procedure
  1. Turn OFF the ignition.
  2. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  3. Disconnect the MAP sensor electrical connector.

    4. Object Number: 12346 Size: SH
  4. Carefully bend the locking tabs holding the MAP (1) sensor to the PCV valve cover (2) just enough to remove the MAP sensor.
  5. Pull the MAP sensor straight out of PCV valve cover.

Installation Procedure

    Object Number: 12346 Size: SH
  1. Ensure that the seal is installed on the MAP sensor and that the seal is not damaged.
  2. Position and install the MAP sensor (1) to the PCV valve cover (2). Ensure that the locking tabs engage to hold the MAP sensor to the PCV valve cover.
  3. Connect the electrical connector.
  4. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .