Where is the expansion valve on a Nissan?

The Expansion Valve is mounted close to the Evaporator, high pressure side, with copper tube. You have to make sure the AC system is evacuated properly before working on it. You have to verify the compressor is working.

Is there an expansion valve for an AC system?

Page HA-12 gives the layout of the AC system while pages HA-24 & 27 give diagnostic procedure for NO COOLING problem. There is also a built-in diagnostic available for your AC system. Re: a/c expansion valve? an expansion valve is for it to be plugged up with gunk. I think it basically takes

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.

When does an expansion valve need to be replaced?

Unless the compressor failed internally, sending debris/burnt oil throughout the AC system, the expansion valve doesn’t require replacement.

Why is my a / C expansion valve not working?

You have to verify the compressor is working. If not, the problem could be with the compressor clutch, AC Relay, Triple Pressure Switch (on top of Liquid Tank or Dryer) or the overheat switch in the compressor itself. If the compressor is engaging, then you need an AC Manifold Pressure Gauge to measure the high and low pressure side.

Do you have to take frigin dash off to replace expansion valve?

You have to take the frigin dash off in order to replace it!!! So, since it appears that there is nothing internally wrong with the a/c, do I really need to replace the expansion valve? NO !!! you do not. There are ways to troubleshoot expansion valves, look on youtube.

Unless the compressor failed internally, sending debris/burnt oil throughout the AC system, the expansion valve doesn’t require replacement.

When to evacuate the a / C lines after installing a new compressor?

Since you are installing a new compressor, make sure you evacuate the a/c lines once the compressor is installed and before you charge it with refrigerant. By the way, why didn’t you just replace the clutch? $60 instead of the hundreds you spent for the compressor and other things.

How to replace an expansion valve in your car?

How to replace a bad expansion valve in car air conditioning (AC) system. Expansion valve location, inspection, removal and replacement. DIY car repair with Scotty Kilmer, an auto mechanic for the last 42 years. 1. AC PAG Oil: http://amzn.to/2CA2wVm 2. AC Gauges: http://amzn.to/2BIru4v 3. Screwdriver set: http://amzn.to/2j92UCG 4.

Do you need expansion valves when installing a compressor?

Frankly you didn’t need the condenser and expansion valves either unless there is something wrong with those parts. Since you are installing a new compressor, make sure you evacuate the a/c lines once the compressor is installed and before you charge it with refrigerant.

What’s the best way to test an expansion valve?

Start the engine and turn on the AC to the MAX (recirculate) position and the coldest setting, along with the highest blower speed. Test car expansion valve. Run the engine at normal speed until the gauges stabilize—needles move in a predicable pattern. Record the high and low pressure readings.

What are the signs of a bad expansion valve?

Signs of a bad expansion valve • The high side pressure only drops by about 10-psi. That’s an indication of a faulty sensing disc, sticking metering pin/metering ball or a clog. • Low side pressure is very low or negative (in the vacuum area)

How to remove an air conditioning unit in a Nissan Rogue?

Remove air mix door motor (LH) (AUTOMATIC AIR CONDITONING). Refer to HAC-110, “AIR MIX DOOR MOTOR : Removal and Installation”. Remove air mix door motor (MANUAL AIR CONDITIONING). Refer to HAC-185, “AIR MIX DOOR MOTOR : Removal and Installation”. Separate the heating and cooling unit assembly and remove evaporator.

What should I do about my Nissan Rogue heater?

Remove the bolt (A) that retains the low-pressure pipe and highpressure pipe to the expansion valve (1). CAUTION: Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air. Disconnect the heater hoses from the heater core. Remove the nuts and bolts that retain the steering member to the vehicle body.

Where can I find the Nissan Rogue service manual?

Refer to HA-21, “Leak Test”. Exploded View Air guide (LH) Condenser upper bracket (LH) Condenser (includes liquid tank) Condenser upper bracket (RH) Air guide (RH) Refrigerant pressure sensor C Compressor Oil Refrigerant

How to remove the battery from a Nissan Rogue?

Disconnect the negative and positive battery terminals and wait at least three minutes. Refer to PG-75, “Removal and Installation (Battery)”. Discharge the refrigerant. Refer to HA-23, “Recycle Refrigerant”. Drain the engine coolant. Refer to CO-8, “Draining”. Remove instrument panel assembly.

Can a bad expansion valve cause an AC system to overheat?

Too much refrigerant flow and the evaporator core will freeze over; too little and the evaporator core will overheat and compromise the efficiency of the AC system. The expansion valve meters refrigerant flow according to evaporator temperature and the load and cooling demand of the 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.

Can a bad or failing expansion valve cause unmetered refrigerant?

Frost on AC evaporator or coming from the vents. Another symptom of a potential problem with the vehicle’s AC expansion valve or orifice tube is frost coming from the vehicle’s vents. If the AC evaporator or orifice tube malfunctions, it can cause refrigerant to flow unmetered through the vehicle’s AC system.