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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 251 (Engine Controls - Removal & Installation) >> Sensors & Switches >> Manifold Absolute Pressure Sensor >> Removal

Manifold Absolute Pressure Sensor: Removal

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Numbers in parenthesis correspond to numbered components in referenced illustration.

Manifold Absolute Pressure (MAP) sensor is located on the intake manifold.

  1. Turn ignition switch to OFF position.
  2. Disconnect negative battery cable. Remove the air cleaner outlet resonator.
  3. Disconnect the cruise control cable (2) from the throttle body (3) and accelerator bracket (1). See Fig 1. Remove the accelerator cable bracket.
  4. Disconnect the accelerator control cable (3) from the throttle body (4) and accelerator bracket (1). See Fig 2.
  5. Remove the 2 accelerator bracket nuts (3). See Fig 3.
  6. Remove the accelerator bracket (2) from the throttle body (1). See Fig 3.
  7. Disconnect the Manifold Absolute Pressure (MAP) sensor harness connector.
  8. Remove the MAP sensor (2) from the intake manifold. See Fig 4.
  9. Check the seal for damage. If the MAP sensor seal is damaged, the MAP sensor must be replaced.
Fig 1: Identifying Cruise Control Cable & Accelerator Bracket
G00217344Courtesy of GENERAL MOTORS CORP.
Fig 2: Identifying Accelerator Control Cable
G00217345Courtesy of GENERAL MOTORS CORP.
Fig 3: Removing/Installing Accelerator Bracket
G00217346Courtesy of GENERAL MOTORS CORP.
Fig 4: Removing MAP Sensor
G00129196Courtesy of GENERAL MOTORS CORP.