Why does the AC in my car go in and out?
Why does the AC in my car go in and out? A Failing Expansion Valve If your A/C flip-flops from hot to cold and back again, your expansion valve could be failing. The expansion valve distributes the proper amount of refrigerant to your evaporator. If the valve is blocked, the refrigerant flow could be restricted or could be too unrestricted. What should I do if I find an air conditioner leak? The worst thing you want to do is nothing at all. If you find an air conditioning leak, address the issue immediately before you have a real problem on...