Check the voltage at the low pressure switch (behind the grill, near the r/s headlight). If you have voltage there, put a gauge on the low pressure fitting at the compressor. Either the low pressure switch is bad, or you are low on refrigerant.

"A young man who does not have what it takes to perform military service is not likely to have what it takes to make a living." - John F. Kennedy

Proud owner of an 88 Montero (with a blown engine).