OEM Dodge Nitro Heater Core

Dodge Nitro Heater Core Parts and Q&A

• Heater Core
  68003993AA
  Q: How to Remove a Heater Core on Dodge Nitro?

  A:

  The first step to changing the heater core is to stop the air bag system by disconnecting the negative Battery Cable, then allow two minutes for the system capacitor to drain. The heater core tubes should not be fixed or taken apart because that could result in a coolant leak. Start by taking apart the HVAC housing assembly and put it on a workbench. After that, remove the air distribution housing from inside the HVAC housing. Undo the screws holding the upper front passenger side floor duct to the passenger side of the air distribution housing and take the duct out. Should the foam between the tube and the heater core tube flange become damaged or deformed, you'll need a replacement. First, remove the foam around the heater core tube flange and then remove the screw that gently holds the flange to the air distribution housing. Pull the plastic retainer off the heater core tubes and remove the flange too. A bumped or leaking foam insulator needs to be replaced. Next, press down on the plastic retaining tabs on the passenger side of the housing and, carefully, remove the heater core from its place.