GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 TrailBlazer - 2WD 🢒 Engine 🢒 Engine Controls - 4.2L 🢒 Manifold Absolute Pressure Sensor Replacement

Removal Procedure
  1. Turn OFF the ignition.

    2. Object Number: 732831 Size: SH
  2. Disconnect the manifold absolute pressure (MAP) sensor electrical connector.

    3. Object Number: 732839 Size: SH
  3. Press the retainer locking tabs inward, then pull the retainer (1) up to remove it.
  4. Remove the MAP sensor (2).
  5. Inspect the MAP sensor seal for damage, and replace as necessary.

Installation Procedure

    Object Number: 732839 Size: SH
  1. Install the MAP sensor (2).
  2. Install the MAP sensor retainer (1).

    3. Object Number: 732831 Size: SH
  3. Connect the electrical connector.