'01 corolla
sometimes when I push the A/C button on, the ac doesn't work. The secondary fan in front of radiator works, the revs increase a little, everything works as it should work, but the compressor doesn't kick in. It only do this sometimes, most often it works, but lately the incidence of "no work" is getting higher. When it works, it is very efficient, actually, I've never seen a better system on a car. I suspect some relay, but I am not sure if there is more than one A/C relay, because fan kick in, rev increase, etc. Is there a separate relay for the compressor only? There is a fuse box at the engine compartment and only one "AC Relay" on it... Anything else I could look so I could try to fix it myself? I am mechanically inclined, have some knowlegde on home ac systems and have quite a few tools...
thanks for any help