I have a 2005 Sentra 1.8 L engine. Yesterday the control for the vents on my air conditioning stopped working. It still blows cold ait but only out of the vent at my feet. Its better tan nothing but the sun shining through the windshield make things pretty hot inside. Has anyone experienced this problem before? It was suggested I look for a loose vac line in the engine compartment. I couldn't find any loose or leaking lines. So I'm guessing I have to tear the dash apart
