When i accelerate my engine the car pumps heat inside the car good but when i stop it turns into mild like a mix of cool and warm. It is winter time and i really need help i already changed the thermostat for it but still not good.
I have a volvo s70 1999 2.4 L and recently im having problems the car not heatin as well as it did before ?
YOU, are low on coolant!!
The heater core is the highest point in the cooling, and the first to run low in water. [heated water] The higher speed of the water pump will pump water into the heater but at low speed the water will take the past of least resistance back to the radiator.
%26quot;BRILLIANT%26quot;!!!!
I have a volvo s70 1999 2.4 L and recently im having problems the car not heatin as well as it did before ?
The fact that it is winter is why you think it isn't hot enough. Why you are accelerating it is going to blow hotter air in. The same goes for when the ac is on, on a hot day and it gets warmer as you accelerate. There is most likely nothing wrong with you heater. It's just that cold outside for you. Best of luck! Also I have found that actually lowering the fan makes it hotter.
Your heater core could be plugged up a bit, or your water pump could be on it's way out.
First check your coolant level. Low coolant is a cause of this.
Second you may need to flush your cooling system. Possibly there is a blockage in the system.
First, check your coolant level. If that is OK, then place a piece of cardboard on the radiator to block some (not all) of the air flow. Cold weather may cause your radiator to work too well. That's why the big rigs have those canvas flaps on the front of the radiator.
Some cars have a small heating radiator...it could be on it's way out. They are usually located underneath the windshield. Might be worth having a look....
Typically this is caused by one of three issues. 1. Air in the cooling system lines. 2. A heater control valve malfunction - it allows hot antifreeze to flow to the heater core inside the car to warm the air. 3. Low antifreeze level.
Bleeding the air from the system is a pretty easy first step in addition to checking antifreeze levels.
Good luck!
