Question about 2003 Chevrolet Impala
This is tough to do online and without special tools. There is a leak somewhere and it takes special tools to find it.
1. First a manifolld gauge has to be installed on the system and pressure readings are taken to see if any coolant is still there.
2. If there is coolant (freon) in the system then it can be checked using a leak detector that is run along the lines and connections. There are connections at the Condensor, compressor, evaporator and drier/orifice tube.
3. If not leak is found or there is no pressure in the system then it has to be evacuated using a vacuum pump.The drier should be replaced at this time and the whole system flushed. This takes hours.
4. Refrigerant is then put back into the system and it is checked for leaks and performance.
When midas replaced the ORings, that is pretty open to interpretation. They might have been talking about the ones that are on the connections. But there are other ones that could be causing the leak. There are two switches in the system that have to seal, there are rings IN the compressor shaft assebmly. IF the system sat idle for a while then you might have corrosion present from moisture.
Posted on Jun 01, 2010
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Posted on Jan 02, 2017
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