You didnt say if the water pump was changed. No hot air means no circulation.AnswerBrittany, You have 2 symptoms of a larger problem. It is like you said "I have a terrible headache and black eye." What happened was you missed the ball and it cracked you in the head.
Anyways, Coolant is a fluid that keeps a car from getting too hot among other things. If there is low coolant the car will overheat. When the coolant ciculates through the engine it will also go through a thing in the dash that is like a small radiator called a heater core. A fan or blower move air through this part and pushes the hot air from the heater core into the passenger compartment. This heater core is usually the highest point of the coolant flow. Since fluid seeks it's lowest level, the heater core is the first to lose the hot coolant. Therefore your blower blows accross a cold heater core and gives you cold air.
If you don't have a leak, then when the thermostat was replaced, the coolant may have not been bled of the air in the system.
I would first fill the coolant and check for any leaks first. There is a common problem with the Buick centuries if you have a 3.1 motor. The intake manifold gasket is common for leaking.
In any event, don't run the engine if it goes into the red. Overheating can cause headgasket problems. See othe posts regarding this issue.
Let me know how you make out.AnswerGlad to hear your problem was resolved.
The heater core does not need to be removed to be checked. If the hose going into the heater core is hot and the one coming out is cold, the tells you it is retricted. Another way to verify is to remove the hoses going to the core, hook up one without installing into the car and run it. It should get hot-very hot, and then see how hot the hose is coming out of the core is like now.AnswerIf this person that replaced the thermostat put it in backwards this could cause the car to overheat and the heater not to get hot. EzForJesus AnswerSimple - It is low on radiator fluid (water or anit-freeze).
Hose going from engine to heater core may have burst. Check all your coolant hoses for leaks.
An air bubble will stop the coolant from flowing and keep water from the heater core. The engine could also overheat, depending on where the bubble is.
possible clogged or damaged heater core
You should check your water level. It's low, and you have a leak. Get someone to check it for you. The heater in your car works off the water from your radiator, no water in the radiator will over heat the engine ergo top up the water. Could also be low antifreeze level causing water in radiator to freeze making the engine overheat and the heater to blow cold air. You have an airlock. If you have a system with expansion/filler tank then check the return pipe is not blocked. These systems bleed themselves if there are no blockages. Mine was because the impeller in the water pump had disintegrated to the point where it would not move the water. The water would overheat, but the hot water would not get moved into the heater core to blow hot air. I replaced the water pump and it all works now.
no belt, low coolant, failed water pump,
Engine will overheat or not get warm enough. As in the heater will only put out warm air. When you suspect that the thermostat may be defective, just replace it. Very inexpensive part.Engine will overheat or not get warm enough. As in the heater will only put out warm air. When you suspect that the thermostat may be defective, just replace it. Very inexpensive part.
heater fan broken.
The heater core has failed.
If your heater is a heat pump , then yes.
not likely as the heater fan only controls the air in the cabin, maybe the radiator fan has gone out too?
For both your heater and air conditioning not to work means you either broke a belt or the belt is loose. Overheating would also be caused by this, because your water pump is driven by the same belt. Do not drive it until you get it fixed, you'll kill that engine by overheating it.
Your coolant level is low.
yesYes when an air bubble makes it to the water pump the water stops circulating and there for you will over heat and the heater core will no longer produce heat through the cars heater vents.
it is a heater. heat. it blows heat. warm air
water in the oil ? Unlikely . Stuck closed the engine will overheat in short time. Stuck open , the engine will probably never reach operating temperature , and cold air will come out of the heater
Low coolant, stuck thermostat, blocked hoses.
If there is no fan to pull the air in, fresh air must come into a convector heater from below. It is drawn in because the air heated by the heating element is warmer and therefore lighter than the colder air below it. So the warmer air rises to leave the convector heater from the top.
Yes, they all come with heating and air conditioning. ,
the blown head gasket would make it over heat. but it wouldn't cause the heater to blow cold, it should actually blow hot if that is wat happened
Air flow. Check the electric fan, check the coolant, and might be time to replace the rad. Does it overheat at idle, and/or on the hi-way?
You have not bleed the air out of the system after you installed the t-stat, causing the heater not to work and the engine to overheat. Use a coolant filler that screws into the radiator and get the air out
heater core possibly plugged and leaking
You may have an air pocket trapped from the work, t-stat may be stuck, anti-freeze may be too concentrated or too thin. are you sure it was your heater core. does your coolant keep emptying from your surge tank?
coolant level could be low not letting it circulate through the heater core, causing it to blow cold. Also, if the coolant level is low it will in turn overheat.
Hey Cari==Make sure there is good air flow around and through the alternator. Restrictions from heater hoses around alternators can cause them to overheat and fail. GoodluckJoe