I am in need of a vacuum diagram and testing procedures for the dash controlls. MOD and Alldata do not seem to have anything on this. The hot and cold knob does not change from hot and the mode knob does not change anything. It feels like it is a vacuum contro...

FIX posted 7/19/1999

iATN Members:
Login to view full TechHelp request
Auto Repair Pros:
Join iATN to read this TechHelp request
Vehicle Owners:
Find a nearby iATN member to repair your vehicle