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Home >> Buick >> 2001 >> Century Limited >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Engine Mechanical - 3.1L V6 (VINJ) >> Removal & Installation >> Engine >> Removal (Century, Lumina)

Removal (Century, Lumina)

  1. Disconnect the battery ground (negative) cable.
  2. Remove the hood panel
  3. Remove the throttle body air inlet duct and the air cleaner assembly
  4. Remove the washer reservoir bolts and retainers
  5. Remove the underhood accessory wiring junction block. Reposition the junction block
  6. Remove the washer reservoir.
  7. Remove the engine mount struts
  8. Remove the drive belt
  9. Disconnect the electrical harness connectors from the following:
    • The camshaft position sensor
    • The manifold air pressure (MAP) sensor
    • The exhaust gas recirculation (EGR) valve
    • The evaporative emissions canister purge solenoid valve
    • The throttle position (TP) sensor
    • The idle air control (IAC) valve
    • The generator
    • The ignition coil
    • The wiring harness grounds
    • The two body wiring harness-to-engine harness connectors
  10. Raise and suitably support the vehicle
  11. Drain the engine coolant from the cooling system
  12. Drain the engine oil.
  13. Remove the oil filter
  14. Disconnect the electrical harness connectors from the following
    • The knock sensor
    • The heated oxygen sensor
    • The crankshaft position sensor
    • The starter motor
    • The A/C compressor
    • The wiring harness grounds
  15. Remove the exhaust manifold pipe from the right (rear) exhaust manifold
  16. Remove the engine mount lower nuts
  17. Remove the torque converter cover
  18. Remove the starter motor
  19. Remove the A/C compressor bolts
  20. Remove the torque converter bolts
  21. Remove the right engine splash shield
  22. Disconnect the radiator inlet hose from the engine
  23. Remove the transaxle brace
    24. Fig 1: Transaxle Mounting Bolts
    GM160967Courtesy of GENERAL MOTORS COMPANY
  24. Remove the lower transaxle-to-engine bolt (6) and stud (1).
  25. Lower the vehicle.
    CAUTION: In order to avoid possible injury or vehicle damage, always replace the accelerator control cable with a NEW cable whenever you remove the engine from the vehicle. In order to avoid cruise control cable damage, position the cable out of the way while you remove or install the engine. Do not pry or lean against the cruise control cable and do not kink the cable. You must replace a damaged cable.
  26. Disconnect the accelerator control and cruise control servo cable from the throttle body and the cable bracket
  27. Disconnect the vacuum hoses from the upper intake manifold
  28. Disconnect the power brake booster vacuum hose from the upper intake manifold
  29. Disconnect the fuel feed and return hoses
  30. Disconnect the heater outlet and inlet hoses from the engine
  31. Remove the power steering hoses from the power steering pump
  32. Remove the power steering pump and set aside
  33. Disconnect the radiator outlet hose from the engine
  34. Install the engine lifting device
  35. Remove the remaining transaxle-to-engine bolts
  36. Remove the engine from the vehicle
  37. Remove the flywheel
  38. Install the engine to the engine stand
  39. Remove the generator and the generator bracket
  40. Remove the drive belt tensioner
  41. Remove the ignition control module
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