GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2008 🢒 Enclave 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Manifold Absolute Pressure Sensor Replacement

Removal Procedure

    Object Number: 1858085 Size: SH
  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.
  2. Disconnect the engine wiring harness electrical connector (1) from the manifold absolute pressure (MAP) sensor (2).

    3. Object Number: 1858101 Size: SH
  3. Remove the MAP sensor bolt (1) and sensor (2).

Installation Procedure

    Object Number: 1858101 Size: SH
  1. Lubricate the NEW MAP sensor O-ring seal with clean engine oil.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Install the MAP sensor (2) and bolt (1).

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


    Object Number: 1858085 Size: SH
  3. Connect the engine wiring harness electrical connector (1) to the MAP sensor (2).
  4. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement.