Thursday, November 24, 2011

How to Replace Vehicles A/C Evaporator Core?

If you need dis-assembly or replacement instructions for any other auto/car part, or you want to ask question related to your car/truck jeep problem then please leave the comment with your details, so I can provide you the required instructions and solutions.


The tube and fin assembly located inside the evaporator housing, where 


refrigerant fluid picks up heat when it changes into a vapor.



A defective evaporator produces an insufficient supply of cool air. This symptom is often the result of a leak in the evaporator core. Other causes include:
  • Dirt- or debris-plugged core; clean core
  • Cracked or broken case; replace and/or caulk the case
  • Leaking seal or O-ring; replace the seal and/or O-ring.




The details for replacing cars evaporator core is as follows :---





The following procedure mentioned below is a general removal procedure of A/C evaporator core. The evaporator is removed differently from different vehicles.
For example, a 1994 Ford Taurus/Mercury Sable instructs you to, "Using a hot knife, cut the top of the air conditioning evaporator housing between the raised outline."
Use a hacksaw or a hot knife to cut the case. Reprinted with the permission of Ford Motor Company.
But a 1993 Ford Probe manual says to simply remove the blower motor and assembly screws before separating the case halves and removing the evaporator.
Split case halves to remove evaporator. Reprinted with the permission of Ford Motor Company.
The following procedure assumes that access to the evaporator has been determined.
  • Recover the refrigerant.
  • Drain the radiator if the heater hose(s) has to be removed to gain access.
  • Remove the heater hose(s), if necessary.
  • Remove any wiring harness, heat shields, brackets, covers, and braces that may restrict access to the evaporator core.
  • Remove the liquid line at the thermostatic expansion valve (TXV) or fixed orifice tube (FOT).
  • Remove the suction line at the evaporator or accumulator outlet.
  • Gain access to the evaporator core as outlined in the service manual.
  • Lift the evaporator from the vehicle.
  • Drain the oil from the evaporator into a calibrated cup.
  • For replacement, reverse the preceding procedure. First, replace the oil with the same amount and type you previously drained.

But if you know the basic procedure,then you can understand its replacing system in your car/truck.

Also if you have better understanding of other car AC cooling system parts,then it will help more to troubleshoot the problem.
Check the list below or more help.
Its always advisable to know the AC components working and testing procedure,before replacing any part.
For more details regarding cars AC components.Check out the list of links below:---


How to Perform AC Pressure Test?


How to test Cars AC System?


How to inspect Vehicles A/C Compressor and Clutch?


How to Troubleshoot Vehicles AC Cooling Problem?

http://repairhelpcenter.blogspot.com/2011/11/how-to-troubleshoot-vehicles-ac-cooling.html

How to Replace Vehicles A/C Compressor and Clutch Components?

http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-vehicles-ac-compressor.html

-----------

For car AC related and Heater related solutions. You can refer the options mentioned below:---

Car AC Blows Warm Air ?


How to test AUTO AC pressure?


AUTO Air Conditioning Troubleshooting?



AUTO A/C COOLING PROBLEM?


Fixing refrigerant leak?


How to locate Car AC Refrigerant leak?


CAR AC INTERMITTENT COOLING?


What causes INTERMITTENT COOLING on Car AC system?


Car AC making Noise?


BAD ODOR ON CAR AIR CONDITIONER?



How to Recharge Car's Air Conditioner




For details regarding:--

How does Vehicles Engine cooling system works?


Engine cooling components working?


How to flush cars radiator?




No comments:

Post a Comment