I went out to chk on it and started it up. It idled at 2200 or so with a great sucking sound under the hood. Opened the hood and the tube on the passenger side at the front that connects to the air filter housing was disconnected from the air filter housing. I put my thumb over the end and it had powerful suction. The suction quit and came back quickly then quit. The idle wobbled a bit and I reconnected it. The idle wobbled a bit lower, I then goosed the throttle lightly and the idle came down to normal (650ish) and stayed there. Test drive tomorrow after some reading on that