2003 dodge caravan heater hose diagram . I have been told to check to see if one is hotter than the other. The heat doesn't work.
29 Mar, 2017
78%Solved this issue
112minTime to fix
62%Recommend to DIY
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The reason you do that is to test if the heater core is passing water through it. If one is hotter than the other, then water is not entering the heater core. If both are the same temperature then the problrm is either electrical or the blend door is not working.
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