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Home >> Buick >> 2015 >> Verano Premium, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 2.4L (Lea)) >> Repair Instructions - On Vehicle >> Intake Manifold Insulator Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  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. Remove the throttle body assembly. Refer to Throttle Body Assembly Replacement .
  4. Remove the brake booster vacuum pipe from the intake manifold.
  5. Remove the oil level indicator tube. Refer to Oil Level Indicator Tube Replacement .
  6. Remove the A/C compressor and condenser hose from the compressor and reposition. Refer to Air Conditioning Compressor and Condenser Hose Replacement (2.4L LEA) .
    7. Fig 1: Intake Manifold Insulator & Components
    GM2757878Courtesy of GENERAL MOTORS COMPANY
  7. Disconnect the ECM wiring harness plug (2) from the fuel injector wiring harness plug.
  8. Remove the fuel injector wiring harness plug bracket bolt (1) and the fuel injector wiring harness plug bracket from the intake manifold.
  9. Disconnect the ECM wiring harness plug (4) from the manifold absolute pressure sensor.
  10. Remove the ECM wiring harness clip from the intake manifold and reposition the ECM wiring harness.
  11. Remove the evaporative emission canister purge tube (3) from the intake manifold stud and reposition.
  12. Remove the brake booster vacuum pipe (6), remove the brake booster vacuum pipe from the intake manifold stud and reposition.
  13. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  14. Pull the intake manifold insulator over the lower intake manifold brackets.
  15. Lower the vehicle completely.
    16. Fig 2: Intake Manifold Insulator
    GM2577138Courtesy of GENERAL MOTORS COMPANY
  16. Remove the intake manifold insulator (1).
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