Measure the gap between the compressor clutch surfaces. If it is .030 or greater it is too large. The clutch won't engage when temperatures get hot. Shims can be removed to close up the gap to about .015. There was a posting recently where someone used plastic shims to accomplish the same thing but I have not tried it. Search the archives for information on AC compressor clutch adjustment.
If you are mechanically capable respond to my email and I will send you the removal/adjustment procedure.
TomL77@rochester.rr.com
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Tom 69-1800S, 72-1800ES, 96-850T,2000-S70 GLT-SE
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