Question about Cars & Trucks
The A/C system requires pressurized Freon to work. As long as there is still some pressure remaining in the system, there is hope to solving the problem. A bigger problem is created when outside atmospheric air seeps into the system because it contains humidity and that type of air can be compressed, but has no ability to work like Freon. A complete purge of the system with an electric Vacuum pump would be needed after fixing the leak which caused the seepage.
But if your A/C has pressure, there is a chance Freon with a sealer could be added. What happens is there are 2 shut-off switches working from Freon pressure, a low and high range pressure switch. If you are low on Freon, an access port can used to add Freon.
You would attach a can of Freon with a sealer and follow the instructions for refilling the unit. There are some cans with a gauge and hose attached. Otherwise a guage set, called Manifold guages would be needed. In some cases, with extremely low pressure, the low pressure switch would need to be bypassed with a jumper wire.
The car engine must be running to do this. So care is needed to avoid moving parts.
Please rate my info.
Posted on Jan 08, 2013
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Posted on Jan 02, 2017
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