Question about 1995 Pontiac Bonneville

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Where is orifice tube located on my 1994 Buick regal?

I'm not sure where the orifice tube goes in this car.

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Hello cptlarry: My name is Roger and I can help you. On the passenger side of the engine compartment. Locate the high side A/C line. This will be a small line called the liquid line. Follow it to the condenser located in front of the radiator. After removing the freon you can split the A/C coupling at the radiator. There are two lines split the one that goes back to the firewall. The orifice tube will be in the condenser end of the line.
Should you need further help please just ask. Please rate the quality of your answer as this way we know you received the correct information. Thank You for using Fix Ya. Roger

Posted on Jun 20, 2009

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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 dryer2_bing.gif 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.

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1 Answer

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1996 Buick Regal air conditioning


I think you may have a clogged orifice tube (possible compressor failure starting) this can be checked with a system pressure test.
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