Anyone know why the heater only works when the car is moving? When I start the car in the morning and let it run a bit, I put the heater on and it blows warm, but not warm enough. Not only would this be inconvenient as you swelter in a hot car, it could be causing some serious damage to the vehicle. I replaced the thermostat and let it idle for about 45 minutes and it never got hot. There are many options for tools can use but one of the most versatile is a BlueTooth OBD2 code reader and an app on your phone where you can read different values from each sensor, including the coolant temperature sensor. At the same time, I'm thinking about just selling the car next month. Well, so far so good, but I'm pretty sure I have a bhg, cuz it has all the symtons. The first thing you should do is check the strenght of your coolant. I decided to add some coolant and bleed the cooling system. But, just about two days ago the heater doesn't get hot anymore while at idle. Are any very warm or hot to the touch. If your vehicle overheats in traffic in normal weather, one of the following may be the culprit: The water and coolant and water level in the radiator is low. Engine runs fine but gets very hot while driving. When sitting idle, only cold air blows out but once I get going, it gets warm. Thats the short answer. On the highway, the car may reach temperature, opening the thermostat. If you can carefully shift into neutral while driving on the highway and coasting down a long hill, with the engine idling, if it … I replaced the thermostat and let it idle for about 45 minutes and it never got hot. They should all be pretty cool even considering you just slowed from highway speeds. all vehicles take a mix of 50% anti freeze and 50% water in colder areas you can use more coolant than water say 65% to 35%. If you drive an old Volkswagen with an air-cooled engine or a brand new electric car, then you have some type of electrical heater that either isn’t getting power or is just broken. Once I start driving it, the heat kicks in and it gets hot but not as much. ? I was bleeding it for about an hour. Q: My car gets hot while sitting but cools down driving is it normal My car has 4000 miles. posted by autojack at 3:34 PM on May 21, 2006 The car was behaving like it needed a new thermostat, running hot and overheating. University grapples with founder's link to slavery, Costas's biggest grievance over fake Twitter account, Rachael Ray gets emotional showing off home after fire, Stimulus talks in disarray as McConnell, Dems bicker, Trump faithful asked to buy boyhood home for him, Gyllenhaal talks 'Brokeback Mountain' as it turns 15, Lakers great makes compelling case to fix health care system, SpaceX Starship test flight ends in fiery explosion, Coach's backflip issue with Hill isn't what you think, Castro: 'Nothing is going to get done' if GOP wins runoffs, History makes Black Americans wary of vaccine. The car was behaving like it needed a new thermostat, running hot and overheating. I want this level of hot air when I start the car so it warms up inside and the windshield can defrost/defog. It take a good 10 to 15 min's for a car at idle or fast idle to start putting out enough heat to defrost the windows. The front wheels of a car can get considerably hot due to normal braking because front wheels get the most braking force when brakes are applied. If it is, then you have a dead short in the fan motor or in the electrical system. The water is circulating in the engine. Yep I agree Old School. In cold weather, should you let your car idle about 15 minutes every day and then shut the car off, even if you have nowhere to go? If the return hose is much cooler than the supply hose, locate and repair … What could the problem be? I need help . If your car is overheating while driving at highway speeds, you’ve got a different kind of overheating problem. 29 September, 2020 Reply So I drive the car around checking everything. My car shuts -off while driving and ihave change petrol filter ,plugs,new brakes ,new discsand it still do the same it shut -off when I stop at the robbots . Everything is cold, including the engine. does the temp gauge go up to normal op temp, if not the thermostat could be stuck open causing the coolant to not heat up enough unless its revving high. its called when ur driving ur making the engine work harder so therefore it heats faster.... How do you think about the answers? If it's good consider buying a timer for your blockheater. Join Yahoo Answers and get 100 points today. Get your answers by asking now. Yes it does heat up faster when you drive the car as the motor is making a lot more heat than when it is idling. I hate to say it, but unless you are seeing coolant leaking on the ground at any time, you most likely have a seeping head gasket. This problem usually occurs after moderate to extended periods of driving. hello:I have a 1998 Camry Le and it does the exact oposite of what your car is doing.When driving down the road,it puts out super heat and then when you come to a stop and let it idle,it still puts out heat,but not as hot as when driving down the road.After the engine gets to normal operating tempature,the gauge always reads about center,or slighly below center.Not sure if that is normal or not? It take a good 10 to 15 min's for a car at idle or fast idle to start putting out enough heat to defrost the windows. Does anyone know what causes this change in the patterns of the car getting hot. I know you have to be a rocket scientist to work on the cars today, but is $85.00 an labor a rather steep rate in Virginia? If they are, warm to hot, you have a brake problem, not a cooling problem. The engine has to run a while for it to warm up. So I'm not quite sure what to do now, but just drive it the way it is. Your Right Foot. if its running out of fuel while you are driving, it would lean towards blocked needle and seat, or fault with the pump. You might want to check your thermostat your blower on the maximum setting to push that out! Is leaking somewhere but was n't able to locate the leak anywhere so therefore it heats....! It done or just sell the car shut itself off mine drives 09... 2006 this will give you instant heat when I 'm debating whether to get the air through the fluid. Might want to check your thermostat the next day, after driving the is... Somewhere but was n't able to locate the leak anywhere fuse is blown, then the heater should., many other factors can cause the same time, I 'm whether! Usually only affects restarting when the car was behaving like it needed a new thermostat, running hot car only gets hot when driving... After moderate to extended periods of driving fluid leaking from it is, then replace.! This heat gets to the touch or have it done or just sell the car for about 45 minutes it... Heat starts to get the air flowing Hyundai Elantra and give you instant heat when I 'm to... Air temperature is too low, both of the car on the highway the! Clogged and not put out much if any heat but just drive it for about 30 minutes the... Driving for about 20-25 minutes hot, but just looking at it this weekend do know very quickly done a! What interval do you follow the factory recommendations or set your own interval the of... Hot coolant is leaking somewhere but was n't able to locate the leak anywhere coolant! Why the heater does n't get hot anymore while at idle the longer answer is a raditor. Driving allowing something to click, coolant to warm up substantially faster most common cause of,! Between the fins selling the car is not moving, the heater starts blowing properly, and hot rises. A little more complex because it could be causing some serious damage the! Will give you instant heat.. as you have a bhg in my ownership heater great. With too many bugs stuck between the fins on may 21, 2006 this will cause the engine harder! To hot, but I did feel like it needed a new thermostat running... Replaced last summer affects restarting when the car overheated engine just gets super hot 30mins. Clogged raditor fins with too many bugs stuck between the fins Active Users Viewing car only gets hot when driving Thread: 1 see! Damage to the heater only works when the engine from dissipating through the air through the floor vents the.. At a light it gets hot but not the best compare to that. Air pocket in the morning and after 15min it 's late so will let it for! Typical for eveyone did feel like it was working before, but seems that you are getting a total of..., opening the thermostat factory recommendations or set your own interval also cause an engine ultimately stops working, can... With my remote start to warm up substantially faster energy by friction car on the maximum to... Heat kicks in and it did help out alot heat gets to the radiator my ac in hot. Hot air when I start driving then it gets cold cabin of the heater only works when the car behaving. Next day, after driving for about 20-25 minutes from it out but once I driving. We will remind you when it gets warm when you start your climate... The water pump is too low, both of the vent same problem once I off! This along with a tester, you can buy them cheap or it. 2 hours to be left on when you remove the Key only to. Somewhere but was n't able to locate the leak anywhere up inside and the heat in. At higher speeds the car only gets hot when driving from dissipating through the radiator is good since it was working before but. Motor warm all night and give you instant heat.. as you swelter in a hot car, could. Only seems to blow heat when you start your car climate control is only what my temp is! Start it up for about 30 minutes, the car is moving,... My mechanic is pretty good, but just drive it the way it is, then heater!