ACDelco GM Original Equipment A/C Orifice Tubes, which separate the high and low pressure sides of the air conditioning system, control the flow of low pressure liquid refrigerant into the evaporator. The orifice tube is essentially a calibrated restriction located at the inlet to the evaporator. One of the many parts that can fail within your vehicle's air conditioning, is the orifice tube. This tube is also known as the expansion tube, and is located within the tube between the condenser and the evaporator. It has 1 side that is a little smaller than the other, to supply more pressure. I'm replacing the accumulator and orifice tube. Find answers to your 2005 Ford Explorer question from certified mechanics and auto experts. Where is the orifice tube located. 2005 Ford Explorer Close. This is because the orifice tube acts as a restriction in the system, and anytime there is a restriction in an air conditioning system, the temperature will drop. For instance, if there is a crease in a condenser, ice or frost will form at that location. Systems with an orifice tube automatically turn the AC system on and off to regulate the flow of refrigerant to the evaporator. Evaporator: This is where the magic happens. While all the other parts of the system are located in the engine compartment, this one is.
Provided by www.ACkits.com
We've updated our forums!
Click here to visit the new forum
location of orifice tube on 99 chevy suburban
GEB on Mon April 24, 2006 3:34 PM
Year: 1999
Make: chevy
Model: suburban
Engine Size: 5.7l
Refrigerant Type: 134
Download free music downloads for mac.
I'm having trouble locating the orifice tube on this system/ dual air thanks
Chick on Mon April 24, 2006 3:47 PM
Dual air it should be right before the split to the rear line, or just after it towards the evaporator (High side) hope this helps.
-------------------------
Chick
Email: Chick
---------------------------------------------
Freedoms just another word for nothing left to lose
Edited: Mon April 24, 2006 at 3:48 PM by Chick
chris142 on Wed May 17, 2006 9:33 PM
If I remember correctly it's in the connection under the air filter. Easiest to get to after removing the air filter assembly.
mickeycool17 on Sun July 16, 2006 9:30 PM
just got done working on a 99 chevy suburban. the orifice tube is in thr high side line of the front evaperator,it the lower line as you face the firewall. take off the window washer jug. the small line. but be very careful trying to undo thr fitting its tight.use 2 wrenches. dont slip cause if you do you coukd wipe out the evaporator lines and the heater core lines right below! that would be a pisser we gave up cause once we broke the connection loose it became very hard to turn the fitting. any suggestions?
-------------------------
geturdone
Chick on Sun July 16, 2006 9:53 PM
When you reassemble it, a 'drop' of nylog on the threads will help it go back on easy..Not just for O rings..
-------------------------
Chick
Email: Chick
---------------------------------------------
Freedoms just another word for nothing left to lose
We've updated our forums!
Click here to visit the new forum
Copyright © 2016 Arizona Mobile Air Inc.
Expansion Valves: The expansion valve is a complex valve which regulates refrigerant flow at the evaporator inlet with an internal moving rod mechanism. This rod opens and closes to differing heights based upon the cooling burden put upon the system. This process of metering modulates the flow according to the temperature of the refrigerant in the evaporator coil. Too much refrigerant could cause the evaporator to get too cold and even freeze up the coils. Too little refrigerant would result in inadequate cooling.
The refrigerant which enters the expansion valve is high-pressure liquid, and is warm. The liquid which flows through the valve and enters the evaporator is low-pressure and cold. This is the exact point where the refrigerant has passed from what is known as the 'high side' to the 'low side' of the system.
Auto Ac Orifice Tube Location Unknown
Orifice Tubes:
Unlike the expansion valve, the orifice tube is a simple fixed device with no moving parts. It therefore cannot vary the flow of refrigerant into the evaporator, but rather causes a permanent restriction in the system. However, like the expansion valve the orifice tube regulates refrigerant flow through the system and filters debris which may come through in its screen.
It becomes necessary to replace the orifice tube if the fine mesh screen or the internal components of the orifice tube become plugged, restricting refrigerant and lubricant flow. Orifice tubes also designate the dividing point between the 'high' and 'low' sides of the system.
Expansion Valves: The expansion valve is a complex valve which regulates refrigerant flow at the evaporator inlet with an internal moving rod mechanism. This rod opens and closes to differing heights based upon the cooling burden put upon the system. This process of metering modulates the flow according to the temperature of the refrigerant in the evaporator coil. Too much refrigerant could cause the evaporator to get too cold and even freeze up the coils. Too little refrigerant would result in inadequate cooling.
The refrigerant which enters the expansion valve is high-pressure liquid, and is warm. The liquid which flows through the valve and enters the evaporator is low-pressure and cold. This is the exact point where the refrigerant has passed from what is known as the 'high side' to the 'low side' of the system.
Auto Ac Orifice Tube Location Unknown
Orifice Tubes:
Unlike the expansion valve, the orifice tube is a simple fixed device with no moving parts. It therefore cannot vary the flow of refrigerant into the evaporator, but rather causes a permanent restriction in the system. However, like the expansion valve the orifice tube regulates refrigerant flow through the system and filters debris which may come through in its screen.
It becomes necessary to replace the orifice tube if the fine mesh screen or the internal components of the orifice tube become plugged, restricting refrigerant and lubricant flow. Orifice tubes also designate the dividing point between the 'high' and 'low' sides of the system.
Gm Orifice Tube Location
LMK 2019
Auto Ac Orifice Tube Location Diagram
