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coolant system consists of three main parts, water pump, radiator, and heater core, than comes the coolant itself, and the lines(hoses) check your fluid first, maker sure that your coolant is topped off at the radiator itself, not the resovoir. from there i would inspect the water pump, if your water(coolant) is really rusty brown, that is a sign that corrosion has occurred, any more questions email me at eliteprofessionals@live.com
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Why does Grand Marquis AC and heater on at same time?
It you are using the "de-ice" function, this might be the normal case ... warm dry air must be blown onto the windshield in order to remove the fog and dampness. With just the heater running it will push warm moist air to the same spot which would add more problems to the visibility issues.
Why would a 1989 Mercury Grand Marquis only blow warm air on the low speed setting and not on any of the other speeds?
your heater core hoses could be plugged up and not letting much hot anti-freeze into the heater core then when you try to blow alot of air through it it cools the warm air off too much and you get not so warm air. try a cooling sytem flush
What is wrong with a 1997 Mercury Grand Marquis if the climate control won't regulate the temp and the AC blows warm?
You most likely require an A/C system recharge. There should be a temp sensor under the hood near the passenger firewall connected between heater hoses to control the ac and heater temperature. Replace that first.
What would cause the heater on a 1997 Grand Am Gt to not warm up completely and only blow slightly warm air?
It could be the thermostat on the engine. If the engine does not warm up adequately the heater will never blow hot air.
My heater blows very little warm air on my 1996 doge 1500 truck?
Thermostat stuck open, heater core clogged, or the heater temperture control vlalve is defective.
What could be wrong with the heater on a 1996 camaro Z28 if it still blows warm air on low setting and coolant is normal?
VENT TO HEATER CORE IS NOT CLOSING................
Why does your heater not blow out warm air?
if the heater does not blow out warm air change the setting.
What would cause a 1996 Dodge ram heater gets warm but when you turn Blower up it goes cold?
If the engine is getting up to normal temp, the heater core might be plugged. Heater core is not plugged and normal operating temp!
Heater on but not blowing warm air?
heater on at idle and will not blow warm air. when moving it blows the warm air from the vents. what will cause this
How do you knoW if heater coil is not working IN A 1996 S-10 2.2?
With the engine warmed up and running, open the hood and feel both heater hoses with your hand. They should both be hot. If one is hot and the other is cold or warm, the heater core is plugged. If they are both cold or warm the thermostat is stuck open or you are low on coolant.
Why is the heater not working on my Jeep Grand Cherokee?
There are several potential reasons why the heater in your Jeep Grand Cherokee may not be working. Common issues include low coolant levels, a faulty thermostat, a malfunctioning heater core, or problems with the HVAC controls. Additionally, a blocked or damaged heater hose can also prevent warm air from reaching the cabin. It's advisable to check these components or consult a mechanic for a thorough diagnosis.
Why is your heater blowing out warm air in your 1990 buick regal?
Isn't a heater supposed to blow warm air?
