Just swapped in a different engine into my 98 gt and now that the new engine is in, the A/C isn't working any more. Yesterday I ran the engine and with the A/C in the "max" position, I saw the clutch on the compressor kick on for a second or two and then kick off - it did this twice and then didn't come on again. So I took a wire and jumped the clutch on the compressor and the A/C kicked on and the air immediately started blowing ice cold out of the vents. While it was running, I made sure to check the pressure in the lines and it was all in the "green" on the gauge. It seems to me like I'm losing something somewhere between the switch on the dash and the compressor. I need someone that knows the system better than I do to point me in the right direction. CCRM maybe? How do I check the relay in that? I saw a youtube video on how to replace the relay in that, but I don't know at this point whether it's actually bad or not. Hell, it may be something as simple as not having connected something when I replaced the engine. I also have noticed that the idle isn't kicking up when the A/C is turned on, so I'm not getting a signal anywhere when I turn the switch on in the dash.