GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Engine 🢒 Engine Controls and Fuel - 4.3L 🢒 Manifold Absolute Pressure Sensor Replacement

Removal Procedure

    Object Number: 1876318 Size: SH
  1. Disconnect the engine wiring harness electrical connector (1) from the manifold absolute pressure (MAP) sensor.

    2. Object Number: 1876319 Size: SH

    Caution: Do not rotate or pry on the MAP sensor when removing. Damage to the MAP sensor or the intake manifold may result.

  2. Remove the MAP sensor bolt (1).
  3. Using a slight rocking motion while pulling straight up, remove the MAP sensor (2) from the upper intake manifold.
  4. Inspect the MAP sensor seal for damage, replace the seal if necessary.

Installation Procedure

    Object Number: 1876319 Size: SH
  1. Install a NEW MAP sensor seal to the MAP sensor, if necessary.
  2. Install the MAP sensor (2) to the upper intake manifold.

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

  3. Install the MAP sensor bolt (1).

    4. Tighten
    Tighten the bolt to 10 N·m (89 lb in).


    Object Number: 1876318 Size: SH
  4. Connect the engine wiring harness electrical connector (1) to the MAP sensor.