My accord's ac quit a while ago. So I did some troubleshooting. When I turn the rotary switch to "AC" the AC compressor clutch does NOT engage. When I manually supply power to the AC compressor it will engage but no cold air comes out. I also tried to refill the AC coolant as soon as I connected the R134 bottle up to the fill hookup, the gauge on the bottle read over red line. The car would not take any coolant. I am at a lost and could use some help.