The heat is coming out of the floor vents or just through the dash? Can you redirect the heat to the defrosters? If so, chances are the cable that controls the heater valve mounted behind the raditor is bent and not shutting off the water to the heater core. You'll need a new cable and possibly a heater valve. <br><br>One of the nice features of a vanagon, is that when you start moving, air is forced throught the front vent. So you can get fresh air while your driving. So you are probably getting air from there which is being warmed by the heater core because the valve isn't fully closed. A bonus with that is in the winter, if your blower is bad, you'll still have heat.