Question about 1992 Oldsmobile Ninety Eight Regency

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Need the location of the orifice tube for the a/c unit.

Posted by Anonymous on

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  • Oldsmobile Master
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Look under the dryer,there is a small liquid line going into the firewall,it is in there,right at the connection,there is a swelled portion of the line,use needle nose pliers to remove the orifice tube,and to install it,if this was at all helpful,please rate,thank you.

Posted on Jul 05, 2010

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  • Oldsmobile Master
  • 6,826 Answers

The orifice tube is either located at the compressor or the firewall, I believe.

I have never changed one, as I just charge the system with a can or two of refrigerant when low on pressure on the low side.


Posted on Jul 05, 2010

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: I need to locate the fixed orifice tube on my 2006 Dodge 2500 4x4

the orfice tube is located behind the passenger battery box.You have to either buy a new line from the dealer or buy a replacement orfice tube with metal housing from the autoparts.

Posted on Jul 10, 2009

  • 2 Answers

SOURCE: AC 2002 Ford Taurus SE

I believe the orifice tube on this model requires the a/c pipe to be cut to install a new tube. You need to discharge the system, replace the tube, then evacuate miosture with a vacuum pump, then recharge with R134A refirgerant. Not a job for a non technical person.

The oriifce is in the line just before the evaporator that is in your car a/c heater case. It is where the liquid refrigerant turns into a vapor as it comes out of the orifice and then it absorbs heat from the air going into you car, thus blowing cold air. Moisutre in the warm air condenses and as he iar gets cold and it drains out of your evaporator and out the drain & onto the ground

Posted on Jul 01, 2008

  • 23 Answers

SOURCE: location of orifice tube in 2004 ford taurus

orfice should be located on the accumulator, where the large line connects.

Posted on Oct 03, 2008

  • 93 Answers

SOURCE: Where, exactly, is the orifice tube located on my truck?

the orfice tube is locate in the line between condenser and evaporator. near the spring lock coupling. you must unbolt the cruise servo and overflow bottle, reposition them out of way and you will see the line connection..the orfice is inside line near that uniion. the ac system must be evacuated prior to removal, and recharged afterwards..

Posted on Jun 04, 2009

harley9701ha
  • 424 Answers

SOURCE: 2002 Ford Expedition Eddie Bauer 5.4l Dual A/C

There is one orifice tube for the font air. It is located in the a/c line coming from the condenser to the evap. core. the rear a/c has and expansion valve attached to the rear evap. core. Hope this helps.

Posted on Oct 08, 2009

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The orifice tube is located inside the liquid line where it connects to the condenser. This line is located on the passenger side of the car and has the low side charge port on it. this line unscrews right where the orifice tube is located... Hope this helps

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Orfice tube location


the fixed orifice is located in the inlet tube to the evaporator core, this is where the small high pressure AC line from the compressor connects to the tube sticking out of the engine firewall, u will most likely need a special tool to remove it, here is a web link to the tool, don't damage the evaporator core by trying to remove the orifice tube without this if it is stuck down in the tube.

http://www.google.com/products?hl=en&q=ac+orifice+tube+removal+tool&rlz=1R2ADBF_en&um=1&ie=UTF-8&ei=X4BETJiZC4-esQPw-ajJDA&sa=X&oi=product_result_group&ct=image&resnum=3&ved=0CCsQzAMwAg

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Which way does the orifice tube go? Orange end or white end to the firewall?


9 is the orifice. Freon is headed toward the evaporator in the car. The orifice has an arrow on it. Good luck, please rate. Thanks A/C Evaporator Core Orifice NOTE: The A/C evaporator core orifice (19D990) should be replaced whenever an A/C compressor (19703) is replaced.

The A/C evaporator core orifice has the following characteristics:
  • is color-coded orange
  • has a diameter of 1.46 mm (0.058 inch)
  • is located in the condenser to evaporator tube (19835)
  • has filter screens located on the inlet and outlet ends of the tube body
The A/C evaporator core orifice is the restriction in the refrigerant circuit that creates the pressure drop necessary for cooling by metering the flow of liquid refrigerant into the A/C evaporator core (19860), which reduces the pressure. Operation is as follows:
  • The inlet filter screen acts as a strainer for the liquid refrigerant flowing through the A/C evaporator core orifice.
  • O-rings on the A/C evaporator core orifice prevent the high-pressure liquid refrigerant from bypassing the A/C evaporator core orifice .
  • Adjustment or services cannot be made to the A/C evaporator core orifice assembly. It must be replaced as a unit.


A/C Evaporator Core Orifice

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2002 Ford Expedition Eddie Bauer 5.4l Dual A/C Are there 2 orifice tubes in the split unit? Where are they located? Is there a diagram available showing the tubes in the system?


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Where exactly is the orifice tube located at on a 1996 (DOHC v6)?


it's in the high pressure liquid line.

A/C Evaporator Core Orifice The A/C evaporator core orifice (19D990) should be replaced whenever the A/C compressor (19703) is replaced for lack of performance (internal damage). The A/C evaporator core orifice, located in the condenser to evaporator tube (19835), cannot be serviced in detail as a component of the line. If replacement is necessary, follow the procedure outlined for Liquid Line Removal and Installation. An orifice tube replacement service kit may be used as an optional service procedure. Refer to Section 12-00 for information regarding the use of an A/C Evaporator Core Orifice Replacement Kit E5VY-19D695-A.
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A/C Evaporator Core Orifice Replacement Kit Installation
  1. Discharge A/C refrigerant system. Refer to System Discharging and Recovery as outlined.
  1. Remove condenser to evaporator tube (19835) from vehicle.
  1. Locate A/C evaporator core orifice (19D990) by three indentations or a circular recess in metal portion of the condenser to evaporator tube.


    A/C Evaporator Core Orifice Location
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  1. Note angular position of ends of condenser to evaporator tube so that it can be reassembled in correct position.
  1. Cut a 63.5 mm (2.5 inch) section from condenser to evaporator tube at A/C evaporator core orifice location. Do not cut closer than 25.4 mm (1 inch) from start of a bend in tube.


    A/C Evaporator Core Orifice Section Removed From the Liquid Line
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  1. Remove contaminants from the two pieces of the condenser to evaporator tube.
  1. NOTE: The inlet half of the condenser to evaporator tube will be positioned against the A/C evaporator core orifice tabs when correctly assembled.

    Lubricate fitting with clean refrigerant oil and assemble orifice tube kit (with A/C evaporator core orifice installed) to condenser to evaporator tube. Make sure flow direction arrow is pointing toward evaporator end of the condenser to evaporator tube, and taper of each compressor ring is toward compression nut.


    A/C Evaporator Core Orifice Kit Disassembled Components
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