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HOMESERVICE MANUALSGMC2020ACADIA SLE, 2.5L ENG VIN AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 239 (ENGINE CONTROLS AND FUEL - 2.0L (LSY) - DIAGNOSTIC INFORMATION AND PROCEDURES (2 OF 2))DIAGNOSTIC INFORMATION AND PROCEDURESCOMPONENT/SYSTEM LEAK TESTCIRCUIT/SYSTEM VERIFICATION
2020 GMC Acadia SLE, 2.5L Eng VIN A

Circuit/System Verification

2020 GMC Acadia SLE, 2.5L Eng VIN ASECTION Circuit/System Verification
WARNING: This page is about a different car, the 2021 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition/Vehicle & All vehicle systems - Off
  2. Remove the duct closest to the component: B75C Multifunction Intake Air Sensor - Outlet
  3. Install - Appropriate tool:
    • Block Off Adapter @ Intake Air Duct
    • Block Off Adapter @ Tail Pipe
  4. Install - GE-52250 Variable Pressure Leak Detector - Hose @ Appropriate tool: Block Off Adapter
    5. NOTE:
    • Before proceeding with this test, review the tool user manual for Safety Information and Instructions: GE-52250 Variable Pressure Leak Detector
    • The user manual that is supplied with the tool, is also available online, refer to GM Special Service Tools
  5. Install & Setup - GE-52250 Variable Pressure Leak Detector
    1. Select: 12 V or 120 V AC
    2. Install - Battery Cable @ C1 Battery or 120 V AC electrical cord @ Electrical outlet
    3. Install - Compressed Air - Hose
    4. Flow Control Valve - On
      5. NOTE:

      Smoke dissipation occurs at a greater rate as the pressure is increased. Smoke exiting the system may be less visible at higher pressures.

    5. Adjust - Pressure Regulator Valve - Test Pressure = 14 kPa (2 PSI)
    6. Press the switch: Vapor Test
      7. CAUTION:

      Excessive System Pressure may cause incorrect results and may damage mechanical components or seals.

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.