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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (3.7L Engine (Service Information)) >> Engine - 3.7L >> Removal

Engine - 3.7L: Removal

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: This procedure applies to both the 4X2 and 4X4 vehicles, steps that apply to the 4X4 vehicle only, are identified.
  1. Discharge A/C system (Refer to STANDARD PROCEDURE - REFRIGERANT RECOVERY ).
  2. Drain cooling system (Refer to STANDARD PROCEDURE - DRAINING COOLING SYSTEM ).
  3. Release fuel rail pressure (Refer to STANDARD PROCEDURE - FUEL SYSTEM PRESSURE RELEASE )
  4. Remove air cleaner assembly.
  5. Disconnect battery.
  6. Remove upper fan shroud.
  7. Remove accessory drive belt (Refer to ACCESSORY DRIVE ).
  8. Remove viscous fan (Refer to RADIATOR FAN - VISCOUS ).
  9. Remove A/C compressor (Refer to A/C COMPRESSOR ) and position out of the way.
  10. Remove generator and secure away from engine.
    NOTE: Do NOT remove the phenolic pulley from the P/S pump. It is not required for P/S pump removal.
  11. Remove power steering pump with lines attached and secure away from engine.
  12. Disconnect the heater hoses from the engine.
  13. Disconnect heater hoses from heater core and remove hose assembly.
  14. Remove upper radiator hose from engine.
  15. Remove lower radiator hose from engine.
  16. Disconnect transmission oil cooler lines at the radiator.
  17. Remove radiator core support bracket.
  18. Remove radiator assembly (Refer to RADIATOR ), A/C Condensor (Refer to A/C CONDENSER ) and transmission oil cooler (Refer to TRANSMISSION COOLER ).
  19. Disconnect throttle and speed control cables.
  20. Disconnect the engine to body ground straps at the left side of cowl.
  21. Disconnect the engine wiring harness at the following points:
    • Intake air temperature (IAT) sensor
    • Fuel Injectors
    • Throttle Position (TPS) Switch
    • Idle Air Control (IAC) Motor
    • Engine Oil Pressure Switch
    • Engine Coolant Temperature (ECT) Sensor
    • Manifold Absolute Pressure MAP) Sensor
    • Camshaft Position (CMP) Sensor
    • Coil Over Plugs
    • Crankshaft Position Sensor
  22. Remove coil over plugs.
  23. Remove fuel rail and secure away from engine.
    NOTE: It is not necessary to release the quick connect fitting from the fuel supply line for engine removal.
  24. Remove, the PCV hose.
  25. Remove the breather hoses.
  26. Remove the vacuum hose for the power brake booster.
  27. Disconnect knock sensors.
  28. Remove engine oil dipstick tube.
  29. Remove intake manifold.
  30. Install engine lifting fixture special tool 8247, using original fasteners from the removed intake manifold, and fuel rail. Torque to factory specifications.
  31. Raise vehicle on hoist.
  32. Remove exhaust crossover pipe from exhaust manifolds.
  33. 4X4 vehicles  Disconnect axle vent tube from left side engine mount.
  34. Remove the through bolt retaining nut and bolt from both the left and right side engine mounts (Fig 1 ) (Fig 2 ).
    Fig 1: Identifying Engine Mount Through Bolt and Nut Removal / Installation - 4X2
    G03512046Courtesy of DAIMLERCHRYSLER CORP.
    Fig 2: Identifying Engine Mount Through Bolt and Nut Removal
    G03512047Courtesy of DAIMLERCHRYSLER CORP.
  35. 4X4 vehicles  Remove locknut from left and right side engine mount brackets (Fig 2 ).
  36. Disconnect two ground straps from the lower left hand side and one ground strap from the lower right hand side of the engine.
  37. Disconnect crankshaft position sensor. (Fig 4 )
    NOTE: The following step applies to 4X4 vehicles equipped with automatic transmission only.
  38. 4X4 vehicles  Remove the axle isolator bracket from the engine, transmission and the axle (Fig 3 ).
    39. Fig 3: Identifying Axle Isolator Bracket Removal / Installation - 4X4 Vehicles With
    G03512048Courtesy of DAIMLERCHRYSLER CORP.
  39. Remove structural cover (Refer to REMOVAL  ).
  40. Remove starter (Refer to STARTERS ).
    Fig 4: Identifying Crankshaft Position Sensor
    G03512049Courtesy of DAIMLERCHRYSLER CORP.
  41. Remove torque converter bolts (Automatic Transmission Only).
  42. Remove transmission to engine mounting bolts.
  43. Disconnect the engine block heater power cable from the block heater, if equipped.
  44. Lower vehicle.
  45. Remove throttle body resonator assembly and air inlet hose.
  46. Disconnect throttle and speed control cables.
  47. Disconnect tube from both the left and right side crankcase breathers (Fig 5 ). Remove breathers
  48. Remove generator (Refer to GENERATOR ).
    Fig 5: Identifying Crankcase Breather Connection Points
    G03512050Courtesy of DAIMLERCHRYSLER CORP.
  49. Disconnect the two heater hoses from the timing chain cover and heater core.
  50. Unclip and remove heater hoses and tubes from the intake manifold (Fig 6 ).
    Fig 6: Identifying Heater Hoses and Tubes Removal / Installation
    G03512051Courtesy of DAIMLERCHRYSLER CORP.
  51. Disconnect engine harness at the following points:
    • Intake air temperature (IAT) sensor (Fig 7 )
    • Fuel Injectors
    • Throttle Position (TPS) Switch
    • Idle Air Control (IAC) Motor
    • Engine Oil Pressure Switch
    • Engine Coolant Temperature (ECT) Sensor
    • Manifold absolute pressure (MAP) Sensor
    • Camshaft Position (CMP) Sensor
    • Coil Over Plugs
      Fig 7: Identifying Throttle Body Connection Points
      G03512052Courtesy of DAIMLERCHRYSLER CORP.
  52. Disconnect the vacuum lines at the throttle body and intake manifold.
  53. Remove power steering pump and position out of the way.
  54. Disconnect body ground strap at the right side cowl (Fig 8 ).
  55. Disconnect body ground strap at the left side cowl (Fig 9 ).
    NOTE: It will be necessary to support the transmission in order to remove the engine.
    Fig 8: Identifying Body Ground
    G03512053Courtesy of DAIMLERCHRYSLER CORP.
    Fig 9: Identifying Body Ground Strap - Left Side Removal / Installation
    G03512054Courtesy of DAIMLERCHRYSLER CORP.
  56. Position a suitable jack under the transmission.
  57. Remove engine from the vehicle.
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