2012 Buick VeranoFACTORY OEM SERVICE PROCEDURE

Manifold Absolute Pressure Sensor Replacement

Fig 1: Manifold Absolute Pressure Sensor & Bolt
GM2577135Courtesy of GENERAL MOTORS COMPANY
Manifold Absolute Pressure Sensor Replacement

Callout Component Name
WARNING:

Refer to Exhaust Service Warning .

Preliminary Procedures

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement .
  3. Clip out the radiator surge tank inlet hose from the camshaft cover. Refer to Radiator Surge Tank Inlet Hose/Pipe Replacement .
  4. Remove the throttle body. Refer to Throttle Body Assembly Replacement .
  5. Move the intake manifold insulator carefully aside.
1 Manifold Absolute Pressure Sensor Bolt
CAUTION:

Refer to Fastener Caution .


Tighten 
4 N.m (35 lb in)
2 Manifold Absolute Pressure Sensor
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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