Where is the expansion valve on a Nissan Versa?
The expansion valve is inside the evaporator housing. You have to evacuate the system and then disconnect the fittings on the firewall (going into the evaporator). Remove the glove box and other components to have access to the evaporator housing. It is a tight area to work with so you have to be patient.
Where is the expansion valve on a car?
An expansion valve is an AC component that is commonly found on many road going vehicles. It is usually installed at the evaporator inlet and works together with the orifice tube to regulate the flow of refrigerant through the vehicle’s AC system.
How to tell if an expansion valve is bad?
Symptoms of a Bad or Failing Expansion Valve (Orifice Tube) 1 AC system performing worse than usual and blowing warm air. 2 Frost on AC evaporator or coming from the vents. 3 AC compressor constantly running.
How does the refrigerant go into the expansion valve?
The refrigerant going into the Expansion Valve is in liquid form. The high pressure gas from the compressor is condensed (gas to liquid) at the Condenser and then filtered (w/ vapor extraction) at the Receiver-Dryer (a.k.a. Liquid Tank). At the Evaporator, cabin air heat is absorbed and dehumidified resulting into cold dry air at the discharge.
The expansion valve is inside the evaporator housing. You have to evacuate the system and then disconnect the fittings on the firewall (going into the evaporator). Remove the glove box and other components to have access to the evaporator housing. It is a tight area to work with so you have to be patient.
Average rating from 5 customers who received a Check Heating AC. An expansion valve is an AC component that is commonly found on many road going vehicles. It is usually installed at the evaporator inlet and works together with the orifice tube to regulate the flow of refrigerant through the vehicle’s AC system.
Symptoms of a Bad or Failing Expansion Valve (Orifice Tube) 1 AC system performing worse than usual and blowing warm air. 2 Frost on AC evaporator or coming from the vents. 3 AC compressor constantly running.
Can a bad expansion valve cause an AC compressor to run?
AC compressor constantly running. A constantly running compressor is another symptom of a possible problem with the AC expansion valve. If the AC expansion valve fails or sticks open, it will cause the compressor to pump refrigerant through the vehicle’s AC system, even when it may be undesirable for it to do so.
How do you change an expansion valve on a truck?
Note that refrigerant oil may leak from the tube if any has accumulated in the evaporator coils. Blow out the evaporator coils with compressed air or compressed nitrogen to make sure no oil or debris is clogging them. Install the new expansion valve, the tapered end with an o ring should go in toward the evaporator coils.
How does the a / C expansion valve work in a Nissan?
At the Evaporator, cabin air heat is absorbed and dehumidified resulting into cold dry air at the discharge. Since the refrigerant (R-12 or R-134a) has low boiling point, the warm cabin air causes the refrigerant to boil (liquid to gas), enhancing the heat extraction process.
How to replace the expansion valve on a refrigera?
1. DISCHARGE REFRIGERANT FROM REFRIGERA– 2. REMOVE BLOWER UNIT 3. REMOVE EVAPORATOR COVER (a) Remove 2 bolts for the liquid and suction tube. (b) Remove 8 screws and evaporator cover. the evaporator and expansion valve.