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Home >> Chevrolet >> 2012 >> Cruze Eco, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 1 (Engine Mechanical - 1.8L (LUW)) >> Repair Instructions - On Vehicle >> Intake Manifold Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
WARNING:

Refer to Gasoline/Gasoline Vapors Warning .

WARNING:

Refer to Safety Goggles and Fuel Warning .

WARNING:

In order to reduce the risk of fire and personal injury observe the following items:

  • Replace all nylon fuel pipes that are nicked, scratched or damaged during installation, do not attempt to repair the sections of the nylon fuel pipes
  • Do not hammer directly on the fuel harness body clips when installing new fuel pipes. Damage to the nylon pipes may result in a fuel leak.
  • Always cover nylon vapor pipes with a wet towel before using a torch near them. Also, never expose the vehicle to temperatures higher than 115°C (239°F) for more than one hour, or more than 90°C (194°F) for any extended period.
  • Apply a few drops of clean engine oil to the male pipe ends before connecting fuel pipe fittings. This will ensure proper reconnection and prevent a possible fuel leak. (During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.)
  1. Open the hood.
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  4. Place a drain pan underneath the vehicle.
    5. Fig 1: Intake Manifold Brace And Bolts
    GM2026538Courtesy of GENERAL MOTORS COMPANY
  5. Remove the 2 intake manifold brace bolts (2, 3).
  6. Remove and disconnect the wiring harness plug from the heated oxygen sensor 1.
  7. Remove the intake manifold brace (1).
  8. Remove the evaporative emission canister purge solenoid valve. Refer to Evaporative Emission Canister Purge Solenoid Valve Replacement
    9. Fig 2: Fuel Feed Pipe
    GM2372979Courtesy of GENERAL MOTORS COMPANY
  9. Unclip the fuel feed pipe (2) from the fuel feed pipe clip (3).
  10. Release the fuel feed pipe (2) from the multiport fuel injection fuel rail (1) and remove the fuel feed pipe.
  11. Close the fuel feed pipe with a suitable cap.
    12. Fig 3: Throttle Body And Positive Crankcase Ventilation Tube
    GM2189157Courtesy of GENERAL MOTORS COMPANY
  12. Remove the positive crankcase ventilation tube (1) from throttle body (3) and the camshaft cover (2).
  13. Remove the throttle body assembly. Refer to Throttle Body Assembly Replacement .
    14. Fig 4: Throttle Body, Throttle Body Heater Inlet Hose And Throttle Body Heater Outlet Hose
    GM2189158Courtesy of GENERAL MOTORS COMPANY
  14. Disconnect the manifold absolute pressure sensor wiring harness plug (5).
  15. Remove the clamp (2) and remove the throttle body heater inlet hose (1) from throttle body (3).
  16. Disconnect the throttle body heater outlet hose (4) from the throttle body (3).
  17. Remove the engine management wiring harness and the fuel injectors wiring harness.
    18. Fig 5: Intake Manifold, Multiport Fuel Injection Fuel Rail, Fuel Injectors, Seals And Bolts
    GM2373077Courtesy of GENERAL MOTORS COMPANY
  18. Remove the 2 multiport fuel injection fuel rail bolts (1).
  19. Remove the multiport fuel injection fuel rail (2) and the fuel injectors (3) from the intake manifold (5).
  20. Remove the 4 multiport fuel injector seals (4).
    21. Fig 6: Brake Servo Vacuum Line
    GM1944890Courtesy of GENERAL MOTORS COMPANY
  21. Disconnect the booster vacuum pipe (1) from the intake manifold.
    22. Fig 7: Intake Manifold And Bolts
    GM2026541Courtesy of GENERAL MOTORS COMPANY
  22. Remove the 7 intake manifold bolts (1).
  23. Remove the intake manifold (2).
    24. Fig 8: Intake Manifold, Intake Manifold Seal And Throttle Body Seal
    GM2189145Courtesy of GENERAL MOTORS COMPANY
  24. Remove the intake manifold gaskets (1, 3) from the intake manifold (2).
    25. Fig 9: Intake Manifold, Manifold Absolute Pressure Sensor And Bolt
    GM2189143Courtesy of GENERAL MOTORS COMPANY
  25. Remove the manifold absolute pressure sensor bolt (1).
  26. Remove the manifold absolute pressure sensor (2) from the intake manifold (3).
    27. Fig 10: Intake Manifold And Mount
    GM2189144Courtesy of GENERAL MOTORS COMPANY
  27. Remove the rubber bracket (2) from intake manifold (1).
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