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In the picture below you can see that the orifice tube is located between the condenser and evaporator: Some vehicles use an AC accumulator orifice tube while other vehicles include an expansion valve instead of the orifice tube and a receiver-drier instead of the accumulator. Symptoms of a Bad Accumulator and Orifice Tube. 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. 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.
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- The automotive air conditioning system consists of several components, including a compressor, evaporator, condenser, expansion valve, orifice and receiver-drier. Any one of the components can fail, or several can be affected by the same problem, such as leaks or blockages. Blockages in the air condition system cause.
- The spare parts industry pundits of one of the leading suppliers of Spare Parts for Ashok Leyland in this blog would like to discuss in detail the symptoms and accordingly the replacement procedure of car air conditioning orifice tube, or most commonly known as the expansion valve. Orifice Tube is a device that plays a quintessential role in.
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
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.
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Chick
Email: Chick
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Edited: Mon April 24, 2006 at 3:48 PM by Chick
chris142 on Wed May 17, 2006 9:33 PM
Year: 1999
Make: chevy
Model: suburban
Engine Size: 5.7l
Refrigerant Type: 134
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.
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Chick
Email: Chick
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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?
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geturdone
Chick on Sun July 16, 2006 9:53 PM
Auto Ac Orifice Tube Location Unknown
When you reassemble it, a 'drop' of nylog on the threads will help it go back on easy..Not just for O rings..
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Chick
Email: Chick
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Auto Ac Orifice Tube Location Fuse
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