Manifold Pressure/Vacuum Sensor: Service and Repair

2009 Chevrolet Silverado 2500 2WD V8-6.6L DSL TurboSECTION Service and Repair


Manifold Absolute Pressure Sensor Replacement

Removal Procedure





1. Disconnect the engine wiring harness electrical connector (2) from the manifold absolute pressure (MAP) sensor.




2. Remove the MAP sensor bolt.
3. Remove the MAP sensor bracket and sensor.



Installation Procedure





1. Install the MAP sensor and bracket.
Caution: Refer to Fastener Caution (Fastener Caution) .
2. Install the MAP sensor bolt.

Tighten the bolt to 10 Nm (89 lb in).





3. Connect the engine wiring harness electrical connector (2) to the MAP sensor.


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.