This is very easy, jump the wires to the switch on the dryer and see if the clutch engages, now do you have any cool air? Look at the sight gauge on top of the dryer, you see bubbles? If so you are just a little low on freon. Go to the parts store and get the tall can of 134 that has a guage on it, it cost a little more but makes it very easy to see how much to put in. I used one of those and in 10 minutes I had checked and topped off all 5 of our cars. There is no reason not to have functioning AC, it hurts resale and in most cars the defroster uses it to defog the car.

Dan

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81 240D 4speed with 300D engine
87 560SL
2005 E320
Yukon Denali
Sierra Denali
850 Turbo Volvo
1996 Mustang
1984 Mustang race car
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