Question about 1985 Chevrolet Monte Carlo
Heater blower does not work. replaced blower and resister, but won't blow
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Posted on Jan 02, 2017
Have you checked the engine coolant level?
The coolant can be low enough to starve your heater core, but high enough to still keep the engine from over heating.
If the coolant bottle is empty, make sure you top off the radiator itself... well it's cooled off.
Posted on Oct 31, 2009
Back flush the heater core could be pluged up with scale, if that don't help than try a thermostat but do the flush first.
Posted on Nov 20, 2009
First check the coolant level if the engine is hot check the reserve jug on the firewall--if cold before start up remove the radiator cap and check coolant level add as needed. If the thermostat has been removed it needs to re-installed. It is possible that the heater hose(s) is stopped up. After letting it run for a period of time both heater hoses should be hot to the touch if they aren't something is restricting the flow of coolant the system needs to be drained and flushed. I have also see some vehicles form an air lock in the coolant system causing the same thing. It then needs to be (burped). This can be checked/done by removing the radiator cap while the vehicle is idleing and watching the water level in the radiator squeeze the upper radiator hose to see if the water/coolant level rises in the radiator. When you release the hose you may need to add some coolant this forces out the air. Hope one of these things. These are some of the cheapest fixes and if they don't work/help then you need to start looking at the heat control selector.
Posted on Dec 30, 2009
Well had the same issue on my duel climate controll 04 2500HD but changing the heater control solved the different temp.The only other thing would be your mixer door motor.There are two,one for DR side is probibly stuck..As far as the blower motor.The resister should have taken care of that.Sounds like you may have another bad one.May want to take a volt meter to the resister plug in and run you different fan speed just to make sure that you get voltage to the different conecters.
Posted on Jan 18, 2010
the blower is under the dash on the passanger side. before replacing the blower motor,unplug it and hook a ground and a possitive to the connections and see if the blower motor works if it does then replace the blower motor resistor.to find the resistor follow the wires from the blower motor they will end at the resistor.
This is the most common problem with the blower not working.
Posted on May 13, 2010
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