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No Heat In Car Unless Driving. One of the major risks that are associated with driving without a heat shield is severe damage to your vehicle. On the highway, the heat is blasting. Another likely cause of a car that runs ok, but has no heat is a stuck thermostat. Check the heater hoses when the truck is warmed up.
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Later in the day i will get heat at lower temps. Tried to bleed air from coolant/ heater core lines, but the valve just spins in. At the simplest level, there are two main reasons why the heater is not working. Let the vehicle warm up at idle without driving (or reving up the engine) to activate the heater. Risks of driving without a heat shield. Once your fan has come on, look around the radiator for a bleed port or bleed screw.
It is possible for numerous components under the hood of your car to melt due to the unchecked extreme heat.
If there isn’t any coolant, you should add some. One of the major risks that are associated with driving without a heat shield is severe damage to your vehicle. Check the heater hoses when the truck is warmed up. If the thermostat is “stuck” it can close off all coolant to the engine…thus overheating and no heater heat will result. :) so came back to the garage and decided to burp the air from coolant reservoir while the car was hot and thermostat was open and jack up the car like you said. Drive the car a few days and you should see the level going down if the overflow system is working properly.
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Temp gauge looks normal, and heat blows when car is moving. Remove the two hose clamps. Now, if the upper radiator hose is hot but the lower hose and the heater hoses are cold then try a new thermostat and see if the issue is repaired or not. But, there�s still no heat in idle. The thermostat should open and close as the engine temp moves up.
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Run the engine until the fan kicks in. The car idles around 750 rpm according to the tach. One of the major risks that are associated with driving without a heat shield is severe damage to your vehicle. The problem is that anytime i stop and the car idles, the heat goes away. If the heat is blowing, but blowing cold, it has something to do with the coolant getting to the heater core, or the heater core itself.
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When sitting at an idle maybe maybe not. Top off the coolant if its low. This car has no heat issues since new. Temp gauge looks normal, and heat blows when car is moving. There is also the chance that the things you have inside your trunk could catch fire.
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They should be hot to the touch. But, there�s still no heat in idle. How the heater works at the simplest level possible, the heater works by passing hot coolant from the engine into a tiny radiator called the heater core. The behavior is curious like the heater core is bypassed until the truck decides the coolant is warm enough. In a car like that, the cost to replace it will be more then your car is worth.
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If both hoses are cool, check the heater control valve, it is probably stuck. Now go for a ride until the engine heats up and the dial is between c and h. One possible cause is an air lock in the cooling system. Brought the car back and they were able to find a leak at the heater core, so now that�s been replaced. Drive the car a few days and you should see the level going down if the overflow system is working properly.
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Same problem (no heat when idling and smell of coolant). One of the major risks that are associated with driving without a heat shield is severe damage to your vehicle. Asked by floyd freedom in blacklick, oh on january 07, 2014. A vehicle thermostat regulates the coolant temperature in the engine. This car has no heat issues since new.
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It is possible for numerous components under the hood of your car to melt due to the unchecked extreme heat. If it’s not coming on at all, it’s usually either the blower motor or some other wiring issue. If not, it’s usually because the water pump isn’t working. This car has no heat issues since new. Once it goes down, no heat.
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The thermostat should open and close as the engine temp moves up. Once it goes down, no heat. Don’t go over the “cool fill line.”. Let the vehicle warm up at idle without driving (or reving up the engine) to activate the heater. Which means the problem probably lies with your heater.
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No heat or hot air during idle is the result of air gap in the heater core. Brought the car back and they were able to find a leak at the heater core, so now that�s been replaced. Check if thermostat is stuck open as too much flow can cause this. Top off the coolant if its low. Drive the car a few days and you should see the level going down if the overflow system is working properly.
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The speed of the car is then the speed of the air going over the radiator. If i give it a tiny bit of gas and bring the idle up a bit to 1200 rpm, the air becomes hot again. If there isn’t any coolant, you should add some. The problem is that anytime i stop and the car idles, the heat goes away. Once your fan has come on, look around the radiator for a bleed port or bleed screw.
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Brought the car back and they were able to find a leak at the heater core, so now that�s been replaced. The problem is that anytime i stop and the car idles, the heat goes away. Start car cold and see how long top radiator hose takes to heat up. How the heater works at the simplest level possible, the heater works by passing hot coolant from the engine into a tiny radiator called the heater core. These tubes can occasionally develop a buildup on the inner walls such that when the heater core is flushed this buildup on the inner walls of the lines remains and still allows the coolant to flow through the heater core.
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Asked by floyd freedom in blacklick, oh on january 07, 2014. Run the engine until the fan kicks in. If it’s not coming on at all, it’s usually either the blower motor or some other wiring issue. Risks of driving without a heat shield. At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers.
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The air coming out the vents goes cold almost immediately. The car idles around 750 rpm according to the tach. As you know, the heater core is a series of tubes that the coolant runs through that generates the heat from the warm coolant after circulating through the motor. You should have heat in the car. The air coming out the vents goes cold almost immediately.
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The load on the engine increases making heat faster but the air speed (#2) can cover that and all is well and your heater works. Looking for the thermostat i found a weird piece on top of engine called a coolant outlet housing, has a bleeder valve on top. First things first, check the coolant. The behavior is curious like the heater core is bypassed until the truck decides the coolant is warm enough. No heat or hot air during idle is the result of air gap in the heater core.
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The water temp will go to 210 and remain there but no heat until i put it under load like get on the highway. When outside air temps drop below 20 deg f there is little to no heat, even after driving 15 miles at highway speeds. Tried to bleed air from coolant/ heater core lines, but the valve just spins in. These tubes can occasionally develop a buildup on the inner walls such that when the heater core is flushed this buildup on the inner walls of the lines remains and still allows the coolant to flow through the heater core. Brought the car back and they were able to find a leak at the heater core, so now that�s been replaced.
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It is possible for numerous components under the hood of your car to melt due to the unchecked extreme heat. It would only start heating at about 2000 rpm. At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. One of the major risks that are associated with driving without a heat shield is severe damage to your vehicle. If the thermostat is “stuck” it can close off all coolant to the engine…thus overheating and no heater heat will result.
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When outside air temps drop below 20 deg f there is little to no heat, even after driving 15 miles at highway speeds. No heat or hot air during idle is the result of air gap in the heater core. When sitting at an idle maybe maybe not. The smell seems to be gone (possibly a little residual smell that will go away?). Drive the car a few days and you should see the level going down if the overflow system is working properly.
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The problem is that anytime i stop and the car idles, the heat goes away. If you feel even a tiny trickle of warmth coming through the vents, then you know that your heater core is likely receiving hot coolant. A vehicle thermostat regulates the coolant temperature in the engine. If it is stuck, it may be allowing the coolant to always be run through the radiator, which keeps it too cool to allow for heat in the cabin but will still allow the vehicle to run. If it’s not coming on at all, it’s usually either the blower motor or some other wiring issue.
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