Auto Ac Orifice Tube Location

Here's where the orifice tube is located

Auto AC orifice tube locations

Because of the way an orifice tube works, it's usually located on the inlet to the evaporator coil. However, on some vehicles the orifice tube location varies. Sometimes it is built into the liquid or high pressure line or inserted into the high pressure line right where the line connects to the condenser. When the orifice tube is built into the line, it's referred to as a Liquid Line Orifice Tube (LLOT) or a Suction and Liquid Line with Orifice Tube (SLOT).

Unlock leased iphone forgot. The orifice tube may be located:

In the inlet tube to the evaporator

Lincoln Town Car 2007, A/C Orifice Tube by Four Seasons®. Quantity: 1 Piece. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right. Orifice tubes are used in systems that don't use expansion valves. Like an expansion valve, the orifice tube is used to control the amount of refrigerant entering the evaporator. The diameter of the orifice tube is similarly small to that of the passage inside the expansion valve, but there is one big difference between orifice tubes. 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. 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.

Built into the high pressure liquid line

Inserted into the high pressure line near the condenser

The 5 different types of Auto AC orifice and expansion valves

How to replace and orifice tube

Auto Ac Orifice Tube Location Relay

Before you replace an orifice tube, LLOT or SLOT, make sure you understand how an orifice tube system works and ensure you've done the right testing to conclude the problem is actually caused by the orifice tube. Replacing the orifice tube requires you to completely evacuate the AC system and disconnect the high pressure liquid line. It's not a fun job.

What you'll need to replace an orifice tube

• Needle nose pliers

• Orifice removal tool

• New receiver/drier

• AC line disconnect tool

• Replacement orifice of the exact same color and part number as the old unit

• New AC O-ring and gasket kit for your vehicle

• Refrigerant oil

• Refrigerant recovery machine

• AC vacuum pump

• AC manifold gauges

• AC refrigerant scale

• Replacement refrigerant

Recover and evacuate your car's AC system

1. Buy or rent a refrigerant recovery machine.
2. Attach the manifold gauge set to the high and low side ports on your car's AC system
3. Recover the old refrigerant (It is illegal to vent the refrigerant into the atmosphere)

Disconnect the high pressure line from the evaporator coil

Use the line disconnect tool to detach the high pressure line from the evaporator

Remove the orifice tube using needle nose pliers or removal tool. Note the orientation of the orifice tube. It must go back in the same way. Lubricate the O-rings on the new orifice tube with AC oil. Insert the new orifice tube into the evaporator or LLOT or SLOT.

Lubrication new O-rings and gaskets with AC oil and install on line

Reconnect the liquid line to the evaporator or condenser and follow factory specs for tightening (if required).

Replace the accumulator

Always replace the accumulator when replacing an orifice tube

Evacuate the system

Add AC oil

Measure how much oil came out during the recovery process and replace with the same amount of oil

Evacuate the AC system

Attach the vacuum pump and pull a vacuum on the entire system for at least 30-minutes

Recharge with refrigerant

Using the refrigerant scale, recharge with the EXACT amount of refrigerant. Overcharging by as little as 2-oz can dramatically reduce the performance of your car's AC system. MORE is NOT better!

Auto Ac Orifice Tube Location Of The Heart

WARNING about plugged orifice tubes

Most orifice tubes fail due to contamination in the AC system due to sealer, oil degradation or mechanical deterioration. Replacing a plugged orifice tube without solving the root problem will result in another plugged orifice tube. If your orifice tube looks the one below, don't fool yourself into thinking you can get by with just a new orifice tube. You'll have to replace the compressor, condenser and even the evaporator.

New and clogged AC orifice tube. Antares autotune pro torrent. Clogged tube shows evidence of 'Black Death.'

©, 2018 Rick Muscoplat

Lincoln Town Car 2007, A/C Orifice Tube by Four Seasons®. Quantity: 1 Piece. Products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right. Orifice tubes are used in systems that don't use expansion valves. Like an expansion valve, the orifice tube is used to control the amount of refrigerant entering the evaporator. The diameter of the orifice tube is similarly small to that of the passage inside the expansion valve, but there is one big difference between orifice tubes. 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. 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.

Built into the high pressure liquid line

Inserted into the high pressure line near the condenser

The 5 different types of Auto AC orifice and expansion valves

How to replace and orifice tube

Auto Ac Orifice Tube Location Relay

Before you replace an orifice tube, LLOT or SLOT, make sure you understand how an orifice tube system works and ensure you've done the right testing to conclude the problem is actually caused by the orifice tube. Replacing the orifice tube requires you to completely evacuate the AC system and disconnect the high pressure liquid line. It's not a fun job.

What you'll need to replace an orifice tube

• Needle nose pliers

• Orifice removal tool

• New receiver/drier

• AC line disconnect tool

• Replacement orifice of the exact same color and part number as the old unit

• New AC O-ring and gasket kit for your vehicle

• Refrigerant oil

• Refrigerant recovery machine

• AC vacuum pump

• AC manifold gauges

• AC refrigerant scale

• Replacement refrigerant

Recover and evacuate your car's AC system

1. Buy or rent a refrigerant recovery machine.
2. Attach the manifold gauge set to the high and low side ports on your car's AC system
3. Recover the old refrigerant (It is illegal to vent the refrigerant into the atmosphere)

Disconnect the high pressure line from the evaporator coil

Use the line disconnect tool to detach the high pressure line from the evaporator

Remove the orifice tube using needle nose pliers or removal tool. Note the orientation of the orifice tube. It must go back in the same way. Lubricate the O-rings on the new orifice tube with AC oil. Insert the new orifice tube into the evaporator or LLOT or SLOT.

Lubrication new O-rings and gaskets with AC oil and install on line

Reconnect the liquid line to the evaporator or condenser and follow factory specs for tightening (if required).

Replace the accumulator

Always replace the accumulator when replacing an orifice tube

Evacuate the system

Add AC oil

Measure how much oil came out during the recovery process and replace with the same amount of oil

Evacuate the AC system

Attach the vacuum pump and pull a vacuum on the entire system for at least 30-minutes

Recharge with refrigerant

Using the refrigerant scale, recharge with the EXACT amount of refrigerant. Overcharging by as little as 2-oz can dramatically reduce the performance of your car's AC system. MORE is NOT better!

Auto Ac Orifice Tube Location Of The Heart

WARNING about plugged orifice tubes

Most orifice tubes fail due to contamination in the AC system due to sealer, oil degradation or mechanical deterioration. Replacing a plugged orifice tube without solving the root problem will result in another plugged orifice tube. If your orifice tube looks the one below, don't fool yourself into thinking you can get by with just a new orifice tube. You'll have to replace the compressor, condenser and even the evaporator.

New and clogged AC orifice tube. Antares autotune pro torrent. Clogged tube shows evidence of 'Black Death.'

©, 2018 Rick Muscoplat

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Clogged orifice tube

Max-Lumina on Sat July 16, 2005 6:52 PM

Year: 1993
Make: Chevy
Model: Lumina
Engine Size: 3.1
Refrigerant Type: R134

93 Chevy Lumina 3.1 , R134 - Original Symptons = Load Clanking Knocking Noise from compressor , no cold air , clutch engages , high pressure readings on the low side ..
In replacing the orifice tube , found the old one very clogged ..
Will replacing the orifice tube correct the compressor problem,
or should I plan on replacing the compressor while I have the system discharged ?
Will also be replacing the accumulator / dryer ?
Many thanks to the contributors of this forum ..

tony1963 on Sat July 16, 2005 7:27 PM

My suggestion is to flush the whole system, replace the compressor, drier, orifice tube and pressure switch.
I just did a Cadillac for a customer. It needed a retrofit. The orifice tube was really dirty. I recommended a new compressor but they said, 'just make it blow cold air'. Again, I recommended a compressor.
Oh well. We did the service. Made cold air for about two hours. Then, the fuse for the AC blew. It blows almost instantly.
Bad compressor/clutch.
Should have done the whole job right.
-------------------------
Grove Automotive Group, Inc.
An Alabama Corporation

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