No Car Heat or Air Conditioner, Overheating, or smelling coolant anti freeze while drive your car, are all sign of problem with engine cooling system. Poor circulation and leaks will lead to engine damage. Lets take a look at How to remove the 2003 Nissan Frontier Xterra Heater Core Radiator and its Air Conditioner Evaporator from inside the vehicle behind the dashboard. In some even you may have to service the Air-Conditioner. It will require replacement of the expansion valve, the electronic air-condition evaporator temperature sensor. Removing the plastic duct compartments are NOT a EASY task but possible after viewing this video. Most applications will require complete removal of the vehicle dashboard. This is a detail instructional media for craftsman, technician and skilled experance repair individual. Always consult the vehicle shop service manual(book) before attemping any repair. It is always best to gain a clear and concise understanding of operating systems and location of components before attemp to resolve any problem situation. Since the climate control heater core radiator leaks liquid, it will most likely develop air bubble pockets inside the cooling system and this will cause the engine to operation above normal temperature or lead to overheating system. Overheating engine will lead to damage cylinder head gaskets, busted hoses, broken radiator and engine damage. Always inspect the automobile floor boards for liquid which may leak from the climate control system.
Also see, Heater Core Inspection Video https://www.youtube.com/watch?v=Ie1MBDN-ce4 . Has to what cause the heater core to leak liquid on the floor board and emit odor.
How-to lower Engine Operation Temperature https://www.youtube.com/watch?v=lmP4PM-56eM . Reduce engine stress condition while in operation.
How to Air Bleed Engine Cooling System to prevent engine overheating damage https://www.youtube.com/watch?v=t7wBLjFh_Fg .
2000-2004 Nissan Frontier xterra Climate Control Dealer/Shop Service Manual: https://drive.google.com/file/d/0B0LNCvWJP9khbWkwRVZfOUlNdEU/view?usp=drivesdk
Stay tune for meticulous installation procedure with improvement.
Post time: Apr-29-2018