Why Does It Take Driving Around for a While for Car Heater to Work?

change the thermostat and flush out the heater core ! sounds like the thermostat is acting up or the heater core is dirty !

1. Car Heater smells like chalk?

I just bought a 2000 Passport and experienced a similar problem. My temperature gage was also wacky - spiking to nearly hot when idle, then dropping nearly to cool when driving. I took it to a mechanic friend of mine and he diagnosed the problem as a bad water pump. The repair cost about $400 (parts and labor). They also replaced my timing belt (car has 80K miles, so it was nearly that time). Now the temperature is consistant and my heater works great! The mechanic also told me these cars have an issue with leaky head gaskets - this is a very expensive fix ($1500-1800), so it is something to keep an eye on. If the head gasket gets really bad, you can also experience loss of heater functionality, high engine temp's, or a complete breakdown (if fully blown).

2. Car heater gave out.?

if the engine is running hot yes , if blower dont come on then its the blower motor....if blower does come on turn heater wide open...if its running hot or low on water it will blow cold air. ..but if not sure if its running hot dont run it or you will blow a head gasket or crack your heads

3. Can someone help me with this question about the car heater?

The answer that the lighter plug is 12 volts is correct, I just wanted to say this so you know. If you have no heat in the cabin then there is no water getting to the heater core or it could be an electrical problem, however if it has to do with the cooling system you could damage your engine by not getting it fixed. Some cars have a mechanical valve that shuts the hot water off going to the heater and this valve can go bad and rust out and leak. If it leaks you could lose your engine from over heating, Just so you know putting on blinders while your in a room with a wild bear will not make you any safer with what you want to to do. Also The car heater Will not help you regulate the the cool air with the hot so you will have problems with moisture on the glass and the head liner causing it to rot out. You are solving one problem and causing more that your not aware of. The heater does more than just keep the air warm it also dehumidifies the air in the car and on most new models they even have a cabin air filter. Good luck I hope you do not regret your decision later on

4. Why does my car heater work intermitently?

What Color? Red? seriously, A few years ago I had a 97 Red Neon. And BTW I had the same problem as your having. The heat turned luke warm after The engine warmed up and while driving. I had a shop look at It and It was determined that the thermostat was malfunctioning. I had It replaced and Problem solved. The other people said they thought It was the heater core. That's another possibility. Could be. The thermostat is worth looking at before you rip a heater core out of this vehicle. Cheaper. Good luck.

5. Why is my car heater / temp gage on the fritz?

the term grease monkeys is offensive to motor engineers, they play an important role in society after all would you be eating food if they were not around ?

6. My car heater won't work...can someone help me?

mcharmd is right. Most likely you heater core is clogged. This is a common problem on older cars, or those that are not taken care of very well. Minerals and sludge build up in your coolant system and clog the small fins on you heater core. Sometimes they can be flushed, but often need to be replaced.

7. If I put on a ton of warm clothes and get in a car with the heater on full blast....?

dont bother...wont work im sure

8. Car heater only works when pressing gas?

Heater core probably needs flushed. A radiator shop did mine

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Impala No Heat at Idle
It turns out the problem is pretty common with 3.5L Impalas. For some reason these engines lose coolant. Some blame is placed on head gaskets, some blame Dex-Cool. What ever the cause, refilling via the overflow jug can leave an air pocket in the cooling system. The cure is to fill via the pressure cap right to the top. Recheck the level after several heat/cool cycles. Then never let the overflow jug get emptyI have 2006 impala that randomly will blow cold air at idle. Sometimes if I stop at redlight the heater will blow cold air. If I get the engine above idle by reving the engine to about 1K rpm it starts to blow warm again. The temp gauge remains at the normal spot on the gauge. The radiator and expansion tank are at the correct levels.·OTHER ANSWER:I have 2006 impala that randomly will blow cold air at idle. Sometimes if I stop at redlight the heater will blow cold air. If I get the engine above idle by reving the engine to about 1K rpm it starts to blow warm again. The temp gauge remains at the normal spot on the gauge. The radiator and expansion tank are at the correct levels.
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