Mike, Walter is correct in his response to your question. I would like to add that the statement you quoted from the article that said "if adjusting the switch makes no difference then you should replace the switch". This is completely wrong. The AC Cycle Switch, which is correctly named the Low Pressure Cut Off Switch, is factory calibrated and the adjustment should not be tampered with. Excessive cycling of the AC compressor is almost always caused by an insufficient level of R-12. As Walter said the engage or "on" time of the compressor should be no less than 7 seconds with the engine RPM at 3000. If you have tampered with the switch you should replace the switch and add freon until the compressor cycles within the above mentioned time period, DMC Joe/Help Club dmchelp@xxxx Information & Store http://shopping.oraclesmallbusiness.com/dsvstore DeLorean Website Directory www.dmc.tv