The water pump pushes hot coolant through heater hoses to the heater core. When this component becomes clogged, you may start to experience car heater problems. The heater core uses hot engine coolant from your car's cooling system to warm your vehicle's cabin. While a blocked heater core is not one of the most common car heater problems, it could ultimately be the cause. The result: your car's heater may stop blowing hot air - idle or otherwise. If the engine does not warm up as it should due to a stuck open thermostat, the heater won't be able to build up the warmth needed. When this component is stuck open, you may experience low engine temperature. Debris and corrosion build-up can prevent it from closing correctly. Your vehicle's thermostat helps to maintain proper engine temperature by controlling the flow of coolant out of the engine. Whatever the cause, it's best to have the issue inspected by a professional technician at your local Firestone Complete Auto Care. There are many reasons for low coolant levels, including irregular maintenance and leaks within the coolant system. Check your owner's manual for how to check coolant levels or have a professional check the cooling system for you. The first thing you should check in this instance is your coolant level.Ĭaution: Never open a perceived hot or pressurized cooling system. A properly functioning coolant system is essential to many components within your vehicle, and having no heat at idle is typically a sign that something is amiss. If the coolant is low and your heater is on, you may notice that your car heater only works when driving. Your engine accumulates a lot of heat when working, and coolant helps to collect this generated heat by transporting it to your vehicle's radiator for cooling. You May Have Low CoolantĬoolant regulates engine temperature and the flow of hot air into the cabin. If your car only has heat when driving, the following issues may be to blame. Many issues with inconsistent heat in the cabin can stem from coolant-relatedissues. Your car's heater works in tandem with your engine's cooling system. Why Does My Car Only Blow Hot Air While Driving? What gives? Stay warm this season by learning what could be causing your heater to only work when you drive and what you can do about it. Oil and coolant levels look fine (coolant res is full).You pull up to a stop in your car on a cold day, and suddenly your cabin's heat turns into an icy blast. I backed off to 65 to make sure then temp wasn't rising at 'normal' speeds. Air temperature was 47F Speed was 75-80 when I first noticed this. Giving it throttle didn't seem to spike the temp but backing off seemed to make it go up a few degrees before eventually dropping below 225. As long as the gauge was in the middle I didn't feel too uneasy. I continued to test what was going on as we drove. Not being able to find the normal operating specs for this engine makes me think this is a tell that something is not right. It seems to imply something is wrong, or at least outside of normal. This change from analog to digital at such seemingly high temp is a terrible interface. I really don't want to get stuck in the middle of nowhere! And I know without a code Ford won't find any issue. I had the vct rattle fixed recently so I'm wondering if something happened during the repair that might affect cooling? I'm a little nervous about the drive back on Christmas Eve. And I have made this same trip before - no issue. Things seemed normal other than again, this is the first time in 47k miles this has happened. We were running pretty fast but not towing. Somewhere around the foothills of Amarillo the digital temp showed up. So I just noticed this on my trip from Dallas to Taos.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |