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Section 1584 (5.7L Engine CNG - (Service Information) - 2500 Hd): Removal

WARNING: This page is about a different car, the 2018 RAM 2500 HD and 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:

If the original engine has experienced a catastrophic failure or an individual failure with the piston, cylinder bore, engine block, valve or valve seat, the intake manifold MUST be replaced with a new manifold.

GC0087996Courtesy of CHRYSLER GROUP, LLC
  1. Remove the Hood. Refer to HOOD, REMOVAL .
  2. Disconnect the intake air temperature (IAT) sensor electrical connector (3).
  3. Remove the clean air hose (2).
  4. Remove the engine cover (1). Refer to COVER, ENGINE, REMOVAL  .
  5. Remove the air cleaner housing (4)
  6. Perform the Fuel System Pressure Release procedure. Refer to FUEL SYSTEM PRESSURE RELEASE .
    GC0087848Courtesy of CHRYSLER GROUP, LLC
  7. Disconnect the negative battery cable (1).
    WARNING:

    Do not remove or loosen the radiator draincock with system hot and under pressure. Serious burns from coolant can occur.

  8. Drain the cooling system. Refer to STANDARD PROCEDURE .
    GC0087997Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    Do not let the tensioner arm snapback to the fully extended position, severe damage may occur to the tensioner.

  9. Insert a suitable square drive ratchet into the square hole on the belt tensioner arm (7).
  10. Release the belt tension by rotating the tensioner (7) clockwise until the accessory drive belt (4) can be removed from the generator pulley only.
    CAUTION:

    Do not place the viscous fan drive in horizontal position. If stored horizontally, silicone fluid in the viscous fan drive could drain into its bearing assembly and contaminate lubricant.

  11. Remove the viscous fan drive assembly. Refer to FAN, COOLING, VISCOUS, REMOVAL .
  12. Recover the refrigerant system. Refer to PLUMBING, STANDARD PROCEDURE .
    GC0087421Courtesy of CHRYSLER GROUP, LLC
  13. Remove the upper radiator seal four push pins (1).
  14. Remove the two plastic rivets (2) and remove the upper radiator seal.
  15. Remove the fan shroud mounting bolts and pull the shroud up and out of the radiator tank clips.
  16. Remove the radiator and A/C condenser as an assembly from the vehicle. Refer to RADIATOR, ENGINE COOLING, REMOVAL - GAS .
    GC0087998Courtesy of CHRYSLER GROUP, LLC
  17. Remove the A/C compressor (4). Refer to COMPRESSOR, A/C, REMOVAL .
  18. Disconnect the generator electrical connectors and remove the generator assembly (2). Refer to GENERATOR, REMOVAL .
    GC0087999Courtesy of CHRYSLER GROUP, LLC
  19. Disconnect the heater hoses (2) and lower radiator hose (1).
    GC0083625Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    It is not necessary to disconnect the power steering hoses from the power steering pump, for power steering pump removal.

  20. Remove the three bolts securing the power steering pump through the holes in the pulley (1) and secure the power steering pump out of the way.
  21. Disconnect the fuel supply line. Refer to appropriate service information .
  22. Raise and support the vehicle on a hoist and drain the engine oil.
    GC0082897Courtesy of CHRYSLER GROUP, LLC
  23. Remove the front engine mount through bolts (3).
  24. Disconnect the transmission oil cooler lines from their retainers at the oil pan bolts.
    GC0080046Courtesy of CHRYSLER GROUP, LLC
    CAUTION:

    When servicing or replacing exhaust system components, disconnect the oxygen sensor connector(s). Allowing the exhaust to hang by the oxygen sensor wires will damage the harness or sensor.

  25. Disconnect the oxygen sensor electrical connectors (2).
  26. Saturate all exhaust bolts and nuts with Mopar® Rust Penetrant. Allow 5 minutes for penetration.
  27. Remove the exhaust pipe to manifold bolts (3) (left side shown, right side similar) and disconnect the front exhaust pipe/catalytic converter assembly (4) at the exhaust manifolds.
    GC0082898Courtesy of CHRYSLER GROUP, LLC
  28. Disconnect the starter wires and remove the starter (1). Refer to STARTER, REMOVAL .
    GC0085486Courtesy of CHRYSLER GROUP, LLC
  29. Remove the transmission inspection and structural dust covers (2). Refer to COVER, STRUCTURAL DUST, REMOVAL  .
    GC0081755Courtesy of CHRYSLER GROUP, LLC
  30. Remove the drive plate to converter bolts (Automatic transmission equipped vehicles).
    GC0092084Courtesy of CHRYSLER GROUP, LLC
  31. Remove both the left and right side oil pan to transmission bolts (1).
    GC0082899Courtesy of CHRYSLER GROUP, LLC
  32. Remove the transmission bell housing to engine block bolts (2).
  33. Lower the vehicle.
  34. Remove the intake manifold. Refer to MANIFOLD, INTAKE, CNG, REMOVAL, 5.7L .
    GC0088008Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    To remove the VVTS, the engine must be at room temperature.

  35. Remove the VVTS electrical connector (2).
  36. Remove the VVTS retaining bolt (1).
    GC0088009Courtesy of CHRYSLER GROUP, LLC
    NOTE:

    Do not use air tools to install (special tool #8984B, Fixture, Engine Lifting) Engine Lift Fixture (1) and Adapter (special tool #8984B, Fixture, Engine Lifting) Eagle (2).

  37. Install the engine lift fixture (special tool #8984B, Fixture, Engine Lifting) (1) and adapter (special tool #8984B, Fixture, Engine Lifting) Eagle (2).
  38. Separate the engine from the transmission and remove engine from the vehicle.
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