You Have a LeakĬoolant travels through several parts of your engine. If that doesn’t work, you’ll need to replace your heater core altogether. You might be able to clear out your heater core passages by flushing them. A clogged passage prevents any warm coolant from getting through. When you don’t replace your coolant, it can carry debris that causes those passages to rust or clog. As the coolant runs through the passageways, the heater core takes the heat and sends it through your truck’s vents. Think of your heater core as a much smaller radiator sitting in your dashboard. This is a solution you might consider if you can’t find anything else. After pressing the same buttons again and again over the years, they can fail. Your heating problems might be the simple result of broken controls.
Engine coolant thermostat heater install#
Thermostats are cheap, and you can install a new one without a lot of effort. You can tell your thermostat isn’t working if it’s stuck in the same place no matter what you do or how long the engine has been running. That means the coolant will keep circulating through the radiator and stay cold. Your Thermostat Is Stuck or MalfunctioningĪ stuck or malfunctioning thermostat can’t control the coolant flow through the radiator. And a coolant leak can end up with your engine overheating - leading to more costly repairs. Trucks that are going through a lot of coolant in a short period of time might indicate you have a leak. Keep an eye on the coolant levels each time you open the hood. You can fix this by filling up your engine coolant. If it doesn’t, your coolant level might be low. It’s normal for cold air to blow out of your vents for the first few minutes after you turn on the heater. If your truck doesn’t have enough coolant, your heating system can’t send it to the heater core. If you’re trying to figure out what’s wrong with your heater, there’s a good chance it has to do with something on this list. We’ve put together a quick explanation of each of these problems. Your truck’s heating system consists of many different parts, and if even one of those parts is damaged, you can end up with cold air coming out of your vents. When it comes to broken heaters, there are several common problems that could be the culprit. This allows the hot air to blow through your vents and heat up your cabin. When you turn on your heater, the coolant flows through the heater core inside your dashboard. This heats the coolant, and the cooling system has to circulate it through the radiator to bring the temperature back down. It uses the same coolant, but instead of cooling it down, it heats it up.Īs you drive your truck, the engine gets warm. Your heating system is actually just your cooling system. So, stay tuned as we walk you through some of the most common heater problems. We’ve put this guide together to help diagnose why your heater’s not working. The first step to fixing your heating system is finding out what’s wrong with it. You’re miserable the whole time you’re on the road.īecause the heater in your truck isn’t working! That means you have to drive 45 minutes, or an entire trip, in a freezing cabin.
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