2003 Silverado heater problem
I recently bought a used 2003 Silverado. The heater only works when both driver and passenger sides are set to 90 degrees. anything less it gets cold no matter what. Any ideas??
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hvac control module prolly. or heater door malfunction
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If when it DOES blow hot, set at 90 degrees and you get good air flow at that setting then I would go with the control module. The heater door should really not matter to where the temp is set at. (I don't believe anyway, but I could be wrong.)
Does the air flow change when you adjust the fan speed at all? I mean does the fan work at all speeds, or just on high perhaps? If it works on all speeds then again I would guess the control module as sfarrell05 suggested. Good luck to you. |
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