2004 Vue 3.5. Where is the orifice tube? - Saturn Cars & Trucks

I think you mean orifice tube for your air conditioning. Your car doesn't have a orifice tube per-say it has an expansion valve.

Check out the link for location and videos

https://www.google.com/search?q=2004+GMC+Envoy+XL+orifice+tube+location&rlz=1C1QJDB_enCA643CA644&sxsrf=APwXEdejF0AzMJT_js0ztdYami8ziL-Adg:1681777281301&source=lnms&tbm=isch&sa=X&ved=2ahUKEwioycXLlLL-AhUZj4kEHZtPAKoQ_AUoAXoECAEQAw&biw=1920&bih=937&dpr=1

The item you want is an orifice tube. Check you tube for videos

Pressure has built up in the system possibly from a clogged orifice tube/expansion valve. Replace the orifice tube/expansion valve, thenPull a vacuum on the system and recharge.

Evacuate the system. Disconnect the AC line at the evaporator inlet. Remove orifice tube. Pull a vacuum and recharge. But, if the orifice tube is plugged, you're most likely wasting your time. You'll have to flush the entire system and see what comes out. In most cases you have to replace the condenser and accumulator as well. Whatever plugged the orifice tube will just re-plug it once you replace it

The FOT (fixed orifice tube) is located near the firewall in the High pressure liquid pipe.
You will notice a crimped area of the pipe where it is located.

passenger side hi side service line going to evaporator. remove line from fire wall to evap it will be in that line.

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.
-Remove the condenser tube.
-Use J 26549-E in order to remove the expansion orifice tube. IMPORTANT: DO NOT use any solvents or chemicals to clean the porous plastic inlet filter of the expansion orifice tube.
-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.

this is your...man what was that called...it is next to your fire wall..it regulates the high and low side.. any way it is costly and it is a ***** to get to. sorry may have to rev the engine for a while..

Orifice Tube that is what it is called.. man thought i would never forget that.

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