OEM Chrysler PT Cruiser Heater Core

Chrysler PT Cruiser Heater Core Parts and Q&A

• Heater Core
  5174809AA
  Q: How to Safely Replace a Heater Core in a Left-Hand Drive on Chrysler PT Cruiser?

  A:

  The first step to changing the heater core on a left-hand drive car is to remove the Battery Cable and release the cooling system's pressure. After that, empty the refrigerant system. Take off the instrument panel and disconnect the refrigerant lines from the evaporator connections as well as the heater core coolant hoses. Within the engine, get rid of the A/C-heater housing fasteners, the drain tube and then the spring clip found closest to it. After you remove the A/C-heater housing bolts, disconnect the electrical connections and take the housing out of the vehicle to put it on a bench. Take the heater core apart and remove it from the case. First, set the new heater core into the HVAC assembly, close it and then fix it back into the car. Screw on the underhood HVAC housing drain tube and spring retainer clip, link the electrical connectors and attach the heater supply hoses to the connections on the heater core. Attach the refrigerant lines back to the evaporator and put the instrument panel assembly back in place. First, remove everything from the interior, load the refrigerant, top up the coolant and then link the negative battery wire again.
• Heater Core
  5179475AA
  Q: How to Service a Heater Core on Chrysler PT Cruiser?

  A:

  Before servicing the heater core, disassemble the HVAC housing and set the assembly outside the vehicle on a workbench. After that, carefully remove the left floor distribution duct. Take off the three screws attaching the heater core cover to the driver side of the air distribution housing and the HVAC housing and then lift off the cover. Damage or deformation in the flange foam will require a new foam to be fitted. Get rid of the foam seal found around the flange on the driver's side of the HVAC assembly. After that, unscrew the two screws holding the heater core to the driver side of the air distribution housing and gently pull the heater core free. If they are in the way, release the retaining clips, pull out the heater core tubes and discard the O-ring seals. Before connecting the tubes to the heater core, lubricate O-rings with clean coolant and put them on the tube tips and then connect the tubes to the heater core and secure the retaining clips. Gently fit the heater core in the driver seat of the air distribution housing, then screw it in with the two screws, making sure they are tightened to 2 N.m (17 in. lbs.). A damaged or misshapen foam seal for the flange should be replaced. Put the foam seal on the flange on the driver side HVAC housing. Grasp one edge of the heater core cover, insert the cover over the driver side of the air distribution housing and HVAC housing and screw it down with the three screws, tightening each to 2 N.m (17 in. lbs.). Insert the left floor duct and when changing the heater core, run the cooling system cleaner prior to reattaching the HVAC assembly.