Had A/C fixed - now weird noise?

[stratt134]

I have a 98 GSX and just recently had the A/C fixed at a shop. (compressor, etc) After getting it back and driving it for a few weeks, it started making this weird noise.

It comes from under the dash, on the passenger side. I'm pretty sure there is something under there that has to do with the A/C, the expansion valve or something?

Anyways, it makes this really high pictched squeeling sound, like it is venting pressor or something? It makes that noise every few minutes, and the noise lastes for about 5 seconds, sometimes a little longer.

If I hit the A/C button to turn off the compressor, the sounds stops immediately.

Does anyone know what this could be? I wanted to be a little more informed about this problem before I take it back to the shop. That way I can play dumb and see if they really take care of it.

Thanks,
Sean

 

[drewvr4]

could it be somthing in the blower assembly, like a bearing thats busted?

 

[stratt134]

Like the blower fan? No. If you leave the fan on and turn off the compressor, the noise stops.

It is not a constant noise


It sounds like it bleeds pressure off every 3 - 5 minutes or so, only lasts a few seconds.

 

[drewvr4]

so its somthing related to freon? what you can do is try finding a leak...soapy water and spray what you can see...otherwise they might have installed somthing wrong, take it back to them

 

[95blackGsTurbo]

That is your best bet. Take it back and show them the noise. Since they did the work it's all under warrenty. Even if they try to chrage you again.

 

[Defiant]

It's likely the sound of the refrigerant expanding into the evaporator.

Come on out here, and you'd just be thankful the sonofabitch is working.

 

[stratt134]

refrigerant expanding into the evaporator sounds the best so far...

But it never did it before the old compressor went out and this shop fixed it...