2002 Focus ZTS A/C cycling off too much
I have an '02 Focus ZTS with the Zetec engine. The A/C puts out cold air but it cycles off all the time. The only time the car cools properly is on the highway. When stopped, idling, accelerating, under load or around town the A/C compressor cycles off. The compressor is not running much more than it is running. Had the A/C pressure checked and components of the actual A/C system are all OK but something is causing the compressor to shut off all the time. What components cause this and where are they located? Went to AllData at the library and it mentions the ACCS "A/C Cycling Switch", The WAC "Wide Open Throttle A/C" and the WOT "A/C Wide Open Throttle" But it does not show location diagram for where these items are located. (Must be a limited info edition of AllData they sell to libraries. Not any better than a Haynes manual.)
BTW, the car is "doggy", poor MPG and a complete tune-up didn't help it.
Can use any ideas and help anyone can give. Thanks!