If your car has a wierd smell it could be your heater core has gone out, also sometimes when your car is low of antifreeze it will do that. They do make a product called heater blows hotter. I know the name is silly but it does work.
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Check the coolant level. If its low you wont get any heat. If its full then I would suspect that the temp. selector on the climate control is faulty. Farley easy to replace. Your local you pull parts yard will have one for $20-$35.
Right think the problem is the heater core is blocked with corrosion ,now remove the bottom hose from the rad and the heater hoses then flush every which way you can including through the heater core reversing direction then ,refit all the hoses fill with water only and see if heater works if so the remove the bottom hose again and drain ,then add a minium of 3 litres of antifreeze ,its a anti corrosion agent as well as antifreeze and without it the internal of the engine will corrode and the slurry will block the heater first then the radiator ,
There is a gate that switches over from heat to cool under the dash,it is operated by vacume.If the vacume acuator is not working,the gate my be stuck in between,which would cause the temp to always be the same.I would check there first.
my 2003 dodge stratus. when I turn on the heat it blows cold and some times it works but not most of the time it just blows cold my car dosent over heat the rest of the car is in good shape what could be the problem?
Water-cooled engines supply heat for the passenger compartment by circulating hot coolant through a radiator-like heater core.
The passenger compartment fan forces air through this heater core and into the passenger area.
The flow of coolant for this purpose can be controlled with a valve in the line that is adjusted when the heat control is moved or via a flap that blocks or opens the air path through the heater core to adjust temperature.
The effect you describe can be caused by several different sources:
- A slipping belt which turns the water pump.
- A partially collapsed hose in the circuit for the heater, causing a reduction of water flow to the heater core.
- A heater core internally blocked from deposits from the water component of the coolant.
- A valve which is not being adjusted through its normal range by the dashboard control.
- A flap suffering the same limitation as above.
Another effect our personal vehicles generally show with age is caused by abnormally low engine friction attributable to a particular additive we use that reduces engine friction so much that the thermostat that controls coolant/engine temperature is wide open but the engine doesn't heat enough to bring the coolant temperature into the normal operating range.
We notice on two of three vehicles, that rolling on a long downgrade (engine not loaded) will cause the engine temperature to drop below its customary operating temperature.
If you have a dashboard temperature gauge, watch it to see if it rises into the middle of the range or not.
If not, there may not be much you can do other than flush the cooling system, making sure that the heater control is set to its highest temperature to ensure that the heater core is in the loop while flushing.
I have a 2001 Dodge Stratus.... the same exact thing happen to me. First it only worked on high #4 and then it stopped all together. I just fixed it today. It is the BLOWER MOTOR RESITOR. I actually changed it myself. It is inside the car under the glove box. There is a little cover you can take off. You will need a tool to take off the 2 screws once the cover is off. And then unplug the old one and install the new one. Really easy. The RESISTOR will cost you about 40 bucks.
Les, it sounds like your blend door actuator has failed, it is a small vacuum operated diaphram up under the dash that controls a flapper that switches between the cool air and heated air. Good news is that it is an inexpensive part, bad news is pulling the dash out to get to it.