Manifold Pressure/Vacuum Sensor: Service and Repair

2007 GMC Sierra Classic 1500 2WD V6-4.3LSECTION Service and Repair


MANIFOLD ABSOLUTE PRESSURE SENSOR REPLACEMENT

REMOVAL PROCEDURE




1. Disconnect the manifold absolute pressure (MAP) sensor electrical connector (2).

NOTE: Do not rotate or pry on the MAP sensor when removing. Damage to the MAP sensor or the intake manifold may result.




2. Using a slight rocking motion, while pulling straight up, remove the MAP sensor.

3. Inspect the MAP sensor seal for damage, replace the seal, if necessary.

INSTALLATION PROCEDURE




1. Install a NEW MAP sensor seal, if necessary.
2. Install the MAP sensor.




3. Connect the MAP sensor electrical connector (2).
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:

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