Now that the weather has cooled off, we started using the heater in the morning and then later in the day switching back over to A/C. When we switch to heat and move the knob over to warm, no problem get nice warm air. The problem is later when we switch back to A/C and move the knob to cold we still get heat for a while. I checked the compressor it is engaged and pumping. Maybe 10-20 minutes go by it will finally switch to cold. Sometimes it won't switch over until I make a stop. <br><br>Could it be the vacuum to the knob. I've read here the vacuum pump is down around the power steering pump. I check the hoses and all looks intact. Any ideas on what else to check? Couple more weeks and won't need the A/C at all until spring but it bugs me this isn't workin' right.<br><br>Thanks,<br><br> Jim

I'm kind of having a similar problem with my '02. When I go from A/C to heat or just plain vent, the compressor keeps cycling. I've been fixing it by rorating the knob to full defrost, then back to vent or floor heat. I can hear the diverter flap snap shut. That seems to cure it. I haven't figured it out yet, but if it keeps up, it's back to the dealer for warranty repair. 'Course this doesn't solve your problem. ::)