My A/C only blows cold on HIGH, if I turn the A/C below high the A/C bearly blows at all if the car is moving. If I sit still with the A/C on anything other than HIGH it will not blow. What can I do to fix this?
1986 Buick Roadmaster? Use your multimeter to track down the problem. It's one or more of these with most likely first: resistor module relay motor dash switch
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