Grand Cherokee 2WD V8-4.7L (2003)
Fig.10 Rear Floor Ducts
11. Remove the rear floor heat ducts from the floor heat duct outlets.
12. Unplug the HVAC housing wire harness connectors.
Fig.11 Passenger Side Instrument Panel To Heater - A/C Housing Mounting
13. Remove the HVAC housing mounting nuts from the studs on the passenger compartment side of the dash panel.
14. Remove the HVAC housing from the vehicle, ensuring that the interior is covered in case of loss of fluids.
INSTALLATION
WARNING: REVIEW THE WARNINGS AND CAUTIONS IN PLUMBING BEFORE PERFORMING THE FOLLOWING
OPERATION. See: Service Precautions
Any kinks or sharp bends in the refrigerant plumbing will reduce the capacity of the entire air conditioning system. Kinks and sharp bends reduce the
flow of refrigerant in the system. A good rule for the flexible hose refrigerant lines is to keep the radius of all bends at least ten times the diameter of
the hose. In addition, the flexible hose refrigerant lines should be routed so they are at least 80 millimeters (3 inches) from the exhaust manifold.