I've probably got an AC leak since my system is cycling excessively again (only 8 months since fill gas charge-- drop-in conversion to the new stuff). But the weird thing is this. When I'm moving down the road for the first few minutes after start it's cycling quite heavily-- every couple of seconds. But if I'm stopped, or coasting & the RPM's are under 1500, it stops cycling. Then magically a couple of minutes after I get going and after RPM's drop down at least once, it stops and only cycles once every couple of minutes (if that). the air out the vents by then is quite cool and comfortable in this sticky 90 stuff. We did checks for leaks before and after conversion/fill last december, it was ok. Now what? Kevin #4687, Houston --------- I read this somewhere: "most experts agree that the end of the world will come by accident, most likely. That's where we come in; we're Computer Experts, we make accidents."