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Home >> Jeep >> 2006 >> Commander Base, 3.7 K, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 3.7L Engine (Service Information) >> Manifold-Intake >> Removal

3.7L Engine (Service Information): Manifold-Intake: Removal

  1. Perform the Fuel System Pressure Release procedure (Refer to FUEL SYSTEM/FUEL DELIVERY - STANDARD PROCEDURE) .
  2. Disconnect negative cable from battery.
  3. Remove resonator assembly and air inlet hose.
  4. Disconnect throttle and speed control cables.
  5. Disconnect electrical connectors for the following components: Refer to FUEL SYSTEM for component locations.
    1. Manifold Absolute Pressure (MAP) Sensor
    2. Intake Air Temperature (IAT) Sensor
    3. Throttle Position (TPS) Sensor
    4. Coolant Temperature (CTS) Sensor
    5. Idle Air Control (IAC) Motor
  6. Disconnect vapor purge hose, brake booster hose, speed control servo hose, positive crankcase ventilation (PCV) hose.
  7. Remove the generator.
  8. Remove the air conditioning compressor.
  9. Disconnect left and right radio suppressor straps.
  10. Disconnect and remove ignition coil towers.
  11. Remove top oil dipstick tube retaining bolt and ground strap.
  12. Remove fuel rail.
    Fig 1: Engine Support Tool
    GC0027240Courtesy of DAIMLERCHRYSLER CORP.
  13. Remove throttle body assembly and mounting bracket.
  14. Drain cooling system below coolant temperature level (Refer to COOLING - STANDARD PROCEDURE) .
  15. Remove the heater hoses from the engine front cover and the heater core.
  16. Unclip and remove heater hoses and tubes from intake manifold.
  17. Support engine using engine support fixture (1), special tool # 8534.
    Fig 2: Engine Mount Bolt
    GC0027235Courtesy of DAIMLERCHRYSLER CORP.
  18. Remove the right side engine mount to frame bolt (3).
  19. With the bolt removed, lower engine until engine mount rests in frame mount.
    Fig 3: Intake Manifold Tightening Sequence
    GC0027241Courtesy of DAIMLERCHRYSLER CORP.
  20. Remove intake manifold retaining fasteners in reverse order of tightening sequence.
  21. Remove intake manifold.