My A/C is not cooling well at idle. While at cruising speed it feels fine and blows down to 40 degrees......then when I come to a stop (ie...traffic light) it does not cool well and the temprature only blows at 65-70 degrees... What'* up?

'91 Olds 98

Sounds like you need a re-charge. Check the two lines going into the dash. One should be cold and the other cooler. If they are both the same your low on freon.

I hooked the manifold guages up and the levels were pretty close....a little off.....and feeling the lines it appears I may have a bit of a clogged orifice tube...just not quite up to snuff.