A/C System Flush (Page 1/1)
Jeffdylanproctor SEP 08, 01:40 PM
Does anyone know the best steps to flush the Air Conditioning System on the Pontiac Fiero?

I finally got all my air conditioning system's electrical issues solved, and am putting on a new compressor, new drier/accumulator, and a new orifice tube. I was wanting to flush the system because I because I am pretty sure that the old compressor died internally. It's clutch engages now, but it doesn't compress at all.
fierosound SEP 08, 02:06 PM
Rule of thumb is you should replace the condenser as well.

You'll need a compressor to flush the lines and evaporator before installing all the new parts.
https://www.autozone.com/di...-your-cars-ac-system

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Stingray92 SEP 08, 03:53 PM
Here's a link I found useful many years ago ac kits.

I did mine with all the tubes, fittings, etc. out of the car and a simple flush gun kit. Otherwise on an installed system you'd likely want to use a flush machine.

Just my 2 cents...