What is the color code for the vacuum lines for the heat and air conditioning controls for a 1982 dodge van?

For a 1982 Dodge van, the vacuum lines for the heat and air conditioning controls typically follow a standard color code. The main vacuum line is usually black, while the lines for the various functions (like heat, defrost, and air conditioning) may be color-coded as follows: red for heat, green for defrost, and yellow for air conditioning. However, it's always best to consult a repair manual for the specific vehicle for the most accurate information.