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Car Heaters
A car heater is a device used to heat the engine of a car, especially during cold weather. Commonly used in the northern US states, Canada or Scandinavia, the device warms up the car’s body and system for easier starting.
1,180 Questions
Why doesnt the heater on your 1999 Chevrolet suburban work?
Could be: Low coolant in the radiator - or - thermostat stuck open - or - heater core plugged.
First thing to check would be all your connections..make sure you have a good clean ground... if all your connections are good then i would say your blower motor is overheating and shuting down(replace it)
When your heater works but does not blow any air what could the problem be?
Does blower operate at all? If not it could be blower motor, fuse/fusible link, faulty switch, blower resistor pack...sorry not enough info for much more help than that (model, year, just heat not working...or a/c also?)
most likely you dont have enough coolant to reach heater core. make sure your full
Heater wont blow hot after thermostat replaced and coolant added?
it could be that you've put too much coolant to percentage of water in
Why is your 2004 Impreza overheating and blowing cold air?
Low coolant?
Bad thermostat?
System airbound?
Bad water pump?
If the coolant level is okay, I would suspect a restricted heater core. Try flushing the heater core.
This is a great answer but I would like to add to it. the part that goes bad on several Lincoln conti's that cause this problem is called a "blend door actuator" I'm not sure if I spelled it correctly but the purpose of this unit is to control switching from defrost to vent and so on. the part is about 25-35 at every junk yard and a bad idea to buy without some sort of warranty, they almost all go bad eventually. A new one from the Lincoln dealership is 89.75 from all three of the Lincoln parts places in my area. My guess would be its the same price nation wide. the service book calls for 1.2 hours of labor time to replace it. a good shop could install it and only charge you about 200.00 after tax. I .
Answereven though the system is electronic, the air directional controls are still vacuum operated. Defrost is the systems default position, in the event of a loss of vacuum. Most likely, there is a loss of vacuum supply to the heater control system.Also, the doors that open and close to direct the air flow are controlled by metal vacuum solenoids where the vacuum tubes plug into. Possibly, one of these soleniods has lost its vacuum seal and is not functioning. To visualize them, you open the glove box door and drop the g-box door all the way down by pushing in on the stop-tabs on either side of the glove box itself. then you can see the air flow phlenum (box) and the three solenoids. Also, check to see if one of the vacuum hoses has just come loose.
Why does your heater only blow through the defrost vent on your 1994 Ford F150?
Idk know but mine does it when i start off from a red light or stop sign and as soon as i let off the gas or it changes gears (automatic) it comes through the vents like normal.
Heater fan switch not working on 1 and 2 setting on 2000 Pontiac Montana?
I just had that same problem..I took it in to have it fixed and they replaced the blower motor resistor and that seems to have fixed the problem
Why does a car's temperature gauge go up when parked but not when driving?
temp going up when parked can usually be lessened by turning off the a/c or running engine above idle so as fan spins faster and suks more air thru radiator and over engine
How do you purge air from a heater core?
fill radiator up the start car after the thermostate opens it will do the trick after running awhile let car cool off then check water in radiator if needed add water if not close it up.
Low coolant level, or a plugged heater core.
get an etemate from the local car repair place like auto zone
It is possible that when freeze plug blew vehicle overheated and caused high pressure in the a/c system resulting in loss of refrigerant charge
Why is acura tl 3.2 1996 heater works while driving and turn cold when stop?
Check the following...............
1. Coolant level.
2. Thermostat.
3. A/C - Heater inside door operations.
4. Lastly check the radiator flow.
How much does it cost to fix a leaking expansion tank on a 2002 s type jaguar?
I had my S type done 1 year ago it cost me £450.00
What causes a 2003 trailblazer to only blow out hot air when it has plenty of freon?
A/C compressor not running
Why wont your heater change from feet to defrost but blows out hot air still?
most likely your heater controls run via vacuum lines. cracked or broken lines could cause this.
neather temp sending unit or faulty gauge....
Check both the supply and return heater hoses from engine to heater for blockage or clogging: remove them and flush. Also check the inlet and outlet pipes on the engine and heater core for gunk buildup and leakage.
The heater temperature sensor is probably disconnected. The ground wire is either loose or not connected at all. The sensor may need to be replaced.
What are some similarities on light and heat?
Lightt and Heat are both electromagnetic radiations the similarity rises to sameness. Heat is low frequency light or light is high frequency light.
What is the reason for a car's heater to work properly one moment and then not work at all the next?
I would check the coolant level first. When the coolant drops below a certain point,Warm coolant that makes the heater work is no longer present and all you get is cold air. If this doesn't work, I'd try a "hotter" thermostat.
