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Diesel Engine - With DPF

WARNING: The normal operating temperature of the exhaust system is very high. Therefore, never attempt to service any part of the exhaust system until it is cooled. Special care should be taken when working near the catalytic converter. The temperature of the converter rises to a high level after a short period of engine operation time.
Fig 1: AIR CLEANER BOX AND SNORKEL
GC0098493Courtesy of CHRYSLER LLC
  1. Remove the air intake assembly.
  2. Remove engine cover.
  3. Disconnect negative battery.
    NOTE: When replacement is required on any component of the exhaust system, original equipment parts (or equivalent) must be used.
    Fig 2: Identifying O2 Sensor
    GC0138052Courtesy of CHRYSLER LLC
  4. Remove the O2 sensor (1) and temp sensor.
  5. Remove the catalytic converter steady rest bracket.
  6. Remove the catalytic converter to the turbo band clamp.
  7. Raise vehicle.
  8. Drain coolant into a clean container.
  9. Drain the transmission oil into a clean container.
    Fig 3: Identifying Catalytic Converter
    GC0138053Courtesy of CHRYSLER LLC
    NOTE: Do not use petroleum-based lubricants when removing/installing muffler or exhaust pipe isolators as it may compromise the life of the part. A suitable substitute is a mixture of liquid dish soap and water.
  10. Remove the Diesel Particulate Filter (DPF). See Exhaust System/FILTER, Diesel Particulate - Removal .
  11. Remove the front suspension crossmember. Refer to Frame and Bumpers/Frame/CROSSMEMBER - Removal .
    Fig 4: Identifying Maniverter (Exhaust Manifold/Catalytic Converter)
    GC0138054Courtesy of CHRYSLER LLC
  12. Remove the catalytic converter (1) to lower support bracket bolts.
  13. Remove the catalytic converter.