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Where is orifice tube - 1995 Pontiac Bonneville

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It is in the inlet (at low pressure AC line) to the reciever/dryer under the hood

Posted on Jun 17, 2009

  • yadayada
    yadayada Jun 17, 2009

    correction, the fixed orifice is just below the reciever drier at the inlet to the evaporator core, that is the small ac line.

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Where is the A/C orifice located 1993 Sonoma 4.3 TBI


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"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

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Where is the orifice tube on an expedition 2001 with dual ac


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Ac orifice tube located


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Where is the orifice tube located to put a new one in?


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We are trying to either get a diagram for an 2002 chevy impalas ac system,or the location of the orifice tube.please help.


It is located inside the condensor tube running to the evaporator.

Here are the removal/installation instructions as per alldata:

TOOLS REQUIRED

J 39400-A Halogen Leak Detector
J 26549-E Orifice Tube Remover

REMOVAL PROCEDURE
-Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
-Remove the air cleaner assembly.
-Remove the vacuum brake booster.
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-Inspect the expansion orifice tube for the following conditions and clean or replace with a new tube as indicated:
-Broken plastic frame (1); replace the tube.
Inlet filter (3) damaged or plugged with fine gritty material; replace the tube.
Inlet filter (3) coated with metal chips, flakes, or slivers; remove the coating with low pressure shop air ONLY and reuse if the filter is cleaned satisfactorily. Do NOT reuse the O-ring seals (2).

INSTALLATION PROCEDURE

IMPORTANT: Lubricate the new O-ring seals (2) with mineral base 525 viscosity refrigerant oil.
If you reuse the orifice tube, install new O-ring seals (2).
Carefully grasp the edge of the expansion orifice tube (1) without touching the inlet filter (3) and insert the expansion tube into the condenser tube until fully seated.
-Install the condenser tube.
-Install the vacuum brake booster.
-Install the air cleaner assembly.
-Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
-Leak test the fittings of the component using J 39400-A.

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1 Answer

Looking For orfice Tube on 2000 Grand Prix 3.8 Liter .need to change it if it has one along with accumalator


Recover the refrigerant. Remove the engine air cleaner.Remove the vacuum brake booster. Remove the condenser tube. Remove the expansion (orifice) tube: Use needle-nose pliers in order to grip the orifice tube. Use a turning motion along with a push-pull motion in order to loosen the impacted orifice tube. Remove the orifice tube.
Important: DO NOT use any solvents or chemicals to clean the expansion (orifice) tube porous plastic inlet filter. Inspect the expansion (orifice) tube for the following conditions and clean or replace with a new tube as indicated: Broken plastic frame, Inlet filter damaged or plugged with fine gritty material, replace tube. Inlet filter coated with metal chips, flakes, or slivers; coating may be removed with low pressure shop air ONLY and reused if cleaned satisfactorily. If reusing the tube, discard the O-ring seals and replace. This is from the gm service CD manual. keep me posted and good luck

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1 Answer

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.
-----------------------------------------------------------------------------------
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
    ea95a2d.gif
  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.

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    A/C Evaporator Core Orifice Kit Disassembled Components
    4280629.gif

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