Manifold Pressure/Vacuum Sensor: Service and Repair

2006 Buick Lucerne V6-3.8L VIN 2SECTION Service and Repair


MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR REPLACEMENT

REMOVAL PROCEDURE




1. Remove the intake manifold cover.
2. Disconnect the engine harness electrical connector (3) from the manifold absolute pressure (MAP) sensor.




3. Carefully disengage the locking tabs holding the MAP sensor.
4. Remove the MAP sensor.

INSTALLATION PROCEDURE




1. Ensure that the seal is installed on the MAP sensor and that the seal is not damaged.
2. Position and install the MAP sensor. Ensure that the locking tabs engage to hold the MAP sensor.




3. Connect the engine harness electrical connector (3) to the manifold absolute pressure (MAP) sensor.
4. Install the intake manifold cover.
RENDER: 1.0x

NO RELATED

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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.