2004 Chevrolet Silverado 1500 Crew Cab "heating mode car heater blowing" Questions

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...heater are stuck in defrost and i cant figure out why i turn the dial to vents and heat but it stays in defrost i turn the dials and nothing happens the fan blows the defrost but wont go to the vents ...

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Question about Chevrolet Silverado 1500

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my 2004 silverado crewcab battery went dead and was replaced. The Air conditioning system now only blows through the defrost vents and the dial to change the airflow does not work. Can this be reset? ...

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Question about Chevrolet Silverado 1500

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...heater will only blow air on the floor, it will not defrost , it does the same with the air. What could be the problem and how do I fix it ? I replaced the blower motor...relay...resistor and a new ...

rear in heater mode. While in heater mode the front vent blows heat, and at the same tiime it`s blowing cold in the rear. are you talking about vents overhead? they only recirculate without the a/c on

Question about Chevrolet Silverado 1500

3 Answers

heater core. If you have a blower issue this would be indicated by no air blowing, or air blowing only on certain speeds on the fan setting. If you have fan speed switch or mode selector switch issue,

Question about Chevrolet Silverado 1500

5 Answers

...mode /defors 3/ recurculation [email protected] Dont jump to the most expensive and time consuming solution. try the electrical connections first that actuate the heating system. next, I would ...

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touch. if not thermostat stuck open.if radiator hoses and heater core hoses hot to touch.your problem is blowed fuse to HVAC SYSTEM or AC HEAT CONTROL MODE SWITCH FAULTY. HEAT AIR DOOR ACTUATOR FAULTY

Question about Chevrolet Silverado 1500

1 Answer

heater. 2: fan must blow, it seems it does. 3: the mode switch must be in heat and the lever to max heat. 4: heater valve bad or clogged. 5: heater core insides clogged, (no coolant service every 2yr)

mode, when I select cool the bloer blows cool air , when I select heat the blower blows out ambient air, If I could find the valve that modulates the coolant to the heater core I think I could fix it.

Question about Chevrolet Silverado 1500

1 Answer

...mode 1st thing. Hi: Your heating system is dependent on hot coolant to be circulated through your heater core, which a fan blows across, and you get heat. If you only get heat when you are moving, ...

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