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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1511 (Engine Controls (Introduction) -- 5.7L) >> Repair Instructions >> Manifold Absolute Pressure (MAP) Sensor Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Fuel Rail Assembly & Bolts
    GM222050Courtesy of GENERAL MOTORS CORP.
  1. Remove the engine sight shields.
  2. Remove the fuel rail assembly. Refer to Fuel Rail Assembly Replacement .
    3. Fig 2: PCV Hose Assembly & Fastners
    GM492232Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Access to the MAP sensor is limited, but does not require the removal of the intake manifold.
  3. Remove the PCV heat exchange cable fastener (3).
  4. Remove the PCV hose (2) from the throttle body.
  5. Remove the PCV hose (5) from the right bank port.
  6. Release the PCV hose assembly from the mounting brackets (4).
  7. Move the PCV hose assembly (1) aside.
    8. Fig 3: MAP Sensor Harness Connector
    GM55819Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the MAP sensor harness connector.
    9. Fig 4: MAP Sensor
    GM58838Courtesy of GENERAL MOTORS CORP.
  9. Pull the MAP sensor forward in order to release the sensor from the retainer.
  10. Lift the MAP sensor upward.
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