2002 buick regal orifice tube expansion

no problem told at all, surely not lookin for fun and kicks?
EGR Orifice,
AC expansion valve orifice.
or what tell what it does, or the problem told
2.2Liter, L61 engine.

I think you meant this. for HVAC AC cooling problems.
air conditioning, is located at the evaporator core close by.
Expansion (Orifice) Tube Replacement the service manual covers this, see my last link
EGR on some it is in the rusty exhaust pipe just to the rear of the main EGR valve.
manuals

https://eautorepair.net/Marketing/Default.asp

explain orifice ??

Are your asking about TXV valve thermal expansion valve for A/C system ? If you are ,yours doesn't have one . Has an orifice tube , The orifice tube is located in the liquid line between the condenser and the evaporator !
The orifice tube is the dividing point for the high and the low pressure sides of the A/C system. As the refrigerant passes through the orifice tube, the pressure on the refrigerant is lowered. Due to the pressure differential on the liquid refrigerant, the refrigerant will begin to vaporize at the orifice tube. The orifice tube also meters the amount of liquid refrigerant that can flow into the evaporator.
Unless you are referring to the auxiliary A/C system for the back of the vehicle , it uses a
The rear TXV is located at the rear evaporator inlet. The TXV is the dividing point for the high and the low pressure sides of the rear A/C system. As the refrigerant passes through the TXV, the pressure on the refrigerant is lowered. Due to the pressure differential on the liquid refrigerant, the refrigerant will begin to boil at the expansion device. The TXV also meters the amount of liquid refrigerant that can flow into the evaporator.

There is no expansion valve. There is an orifice tube in the high side hose where it connects to the evaporator inlet fitting. You'll have to let the freon out first to open this connection. Use needle nose pliers to grab the orifice tube. If the screen is plugged with aluminum mud, there are more serious problems with the system that will have to be addressed. Of you don't have the tools , a vacuum pump and a gauge set, I'd let a A/C shop do the job.

2002 Chrysler 300 has an expansion valve instead of an orifice tube which is used to meter the flow of refridgerant. It is located on the firewall attached to the AC manifold hose assembly

#10 is expansion valve and #3 is the hose assembly..follow AC hoses from compressor to the firewall and it will take you to the expansion valve

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.

not exactly sure but using info below you can find it.

Remember the flow for the a/c system is :
1. From the compressor a high pressure (HP) gas goes to the condenser in front of the radiator.
2. From the condenser a HP liquid goes to an expansion device (orifice tube or expansion valve)
3. From expansion device the low pressure gas enters the firewall to the evaporator.
4. From evaporator the low pressure liquid/gas mixture goes through the dryer back to the compressor suction.

There will be about a 1" nut on the low pressure line between the firewall and the compressor. Remove nut and on the male side use a pair of kneedle nose pliers and remove orifice tube. Note orientation of tube.

Replace tube, reassemble, evacuate air from system, recharge with freon.

The orifice tube is located in the liquid line from the condenser to the evaporator at the fitting on inside left front fender.

I think you may have a clogged orifice tube (possible compressor failure starting) this can be checked with a system pressure test.
When an expansion valve or block fails, always replace the drier. Also flush the condenser and liquid lines.

Some are in the inlet to the evaporator and some could be in the condenser line. You can get a new orifice tube on autozone for $5 - 20

http://www.autozone.com/N,16301861/shopping/partTypeResultSet.htm