GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Malibu 🢒 Engine 🢒 Engine Controls and Fuel - 3.5L 🢒 Manifold Absolute Pressure Sensor Replacement

Removal Procedure

    Object Number: 1774993 Size: SH
  1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement.
  2. Disconnect the engine wiring harness electrical connector (1) from the manifold absolute pressure (MAP) sensor.

    3. Object Number: 1774994 Size: SH
  3. Remove the spark plug wire clip from the MAP sensor bracket, if necessary.

    4. Object Number: 1775003 Size: SH
  4. Remove the upper intake manifold bolt.
  5. Remove the MAP sensor bracket (5).
  6. Remove the MAP sensor (6) and seal from the upper intake manifold. Discard the seal.

Installation Procedure

    Object Number: 1775003 Size: SH
  1. Lubricate the NEW MAP sensor seal with clean engine oil.
  2. Install the MAP sensor (6) into the upper intake manifold.
  3. Place the MAP sensor bracket (5) into position.

    4. Caution: Refer to Fastener Caution in the Preface section.

  4. Install the upper intake manifold bolt.

    5. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 1774994 Size: SH
  5. Install the spark plug wire clip to the MAP sensor bracket, if necessary.

    6. Object Number: 1774993 Size: SH
  6. Connect the engine wiring harness electrical connector (1) to the MAP sensor.
  7. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement.