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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 8.1L (Introduction) >> Repair Instructions >> Manifold Absolute Pressure (MAP) Sensor Replacement >> Installation Procedure
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Installation Procedure

IMPORTANT: Lubricate the port of the MAP sensor with clean engine oil. Avoid dipping the sensor port directly into the lubricant or using a solid type of lubricant, as they may block the vacuum port signal.
    Fig 1: View Of MAP Sensor & Bolt
    GM858207Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install the MAP sensor.
  2. Install the MAP sensor bolt.

    Tighten:  Tighten the bolt to 12 N.m (106 lb in).

    3. Fig 2: View Of Ignition Coil, ECT And MAP Sensor Electrical Connectors
    GM750529Courtesy of GENERAL MOTORS CORP.
  3. Connect the MAP sensor electrical connector (1).
  4. Install the engine sight shield. Refer to Engine Sight Shield Replacement in Engine Mechanical - 8.1L.
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