Question about 2004 Jeep Grand Cherokee
If it's not taking any more R143a. You may have over charged it and the pressure switch is doing it's job by not activating the compressor. Over charged system will damage the compressor causing 100% failure. The low side should have 30psi to 50psi and the high side should have 150psi to 200psi to have it run properly. Any other readings will give poor a/c performance and a high reading condition will case system damage. If the reading are good and is at the manufacture's specification, the Thermal Expansion Valve (H block valve for Chryster)may have gone bad. These valve are prone to malfunction due to stuck, clogged valve with debris and corrosion. good luck and keep me posted, be glad to help.
Posted on Jun 24, 2009
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Posted on Jan 02, 2017
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