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92 93 240 A/C Low pressure switch and connector - diagnosing reparing replacing 200 1993

posted by  JPistos on  Sun Apr 9 11:18 CST 2017
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last visit: Wed Oct 8 10:41 CST 2014
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So I've got two bricks with almost the same problem - both have either faulty low pressure switches or the connector plug/wiring is the problem. Sometimes the A/C works and sometime it doesn't. Fiddling with the connector (removing/replacing) or bending the wires at the connector will sometimes get the A/C going. Sometimes. Usually works best when first starting up, not when it's warm/hot. And when it's working, the switch/connector/wiring problem usually will cause the A/C system to shut off/on several times a minute, causing the engine to hesitate momentarily as the A/C clutch cycles on/off.
Questions: I assume replacing the switch requires evacuating the system and recharge? Any tips on repairing/replacing the connector and wires? I've tried some electric clean spray and dielectric grease, but that wasn't enough.
Thx in advance BB's!






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