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Common Reasons A Jeep Has No Heat And How To Fix

Common Reasons A Jeep Has No Heat And How To Fix

It’s getting to the cold part of the year, and while none of us particularly like being cold, it happens. However, thanks to technology, our cars can keep us warm and comfortable until they don’t. Then, what do you do when your Jeep doesn’t have heat anymore?

The most common reason a Jeep has no heat is because the heater blower motor is bad. Other common reason are the blower motor resistor or switch, a broken thermostat, or that there is not enough coolant to circulate through the heater core.

There is always around a 20% chance that you could be dealing with any other problem with your jeep, but most of the time, the things that break or are defective are all the same. While it can be frustrating, it makes finding the issue and repairing it quite simple.

Why Is My Heater Blowing Cold Air In My Jeep?

Chances are, if your heater is blowing cold air in your jeep, something is broken or not working correctly. Most people try simple things such as:

  • Turning your car off and back on again
  • Checking your freon
  • Checking to ensure your switches are working correctly

While these could fix the problem, they may only be short-term solutions or even part of the problem. Most of the time, especially with jeeps, there are deeper or bigger issues that can stop your heat from working.

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What To Check If Heat Is Not Working In Jeep?

There are a few things you need to check when your heat isn’t working, and the great thing is, most of them aren’t hard to find, check or fix.

Here’s a video walk-through for checking these things out, with written steps below:

Broken Heater Blower Motor

Even when this part breaks or is faulty, air can still blow; in some cases, it can even be hot or cold, depending on what you are trying to get to work. However, you will notice a huge decrease in air flow, power, and ability actually to heat or cool the car down.

Chances are, if this part is broken, you will hear a rattling or grinding noise when the air or heat is turned on. This is a broken heater blower motor symptom that will rule out any other issue.

Broken Or Defective Thermostat

A thermostat can cause quite a few issues, and not just with your air or heating system. A thermostat can cause your engine to run colder than necessary or overheat as well.

The thermostat also controls the heat and air temperature and helps the car to figure out how hot or cold to make the air. If the thermostat is causing things to be too cold or too hot, it’s broken, and it will cause problems big enough to ruin or damage your jeep further possibly.

The biggest signs of a broken thermostat are the engine running too hot or cold and the air or heat not setting the right temperature.

Heater Blower Motor Resistor

When this blower motor is malfunctioning or broken, some air may blow out of the vents at times, but not as much as needed, and if it isn’t replaced before it completely stops working, then you won’t have any air coming out of your vents.

Generally, you should be able to tell when this part is beginning to malfunction due to the spotty or low pressure of the air coming out of your vents or if it stops altogether.

Coolant Levels Are Low

If you have checked everything so far or aren’t experiencing any of the signs and symptoms of any other parts being broken, you may be looking at low levels of coolant or none at all.

Coolant is a fluid that has to be stored in your car’s system to efficiently regulate temperature, and in some cases, it can affect the heat levels just as much as the A/C levels.

Coolant works alongside the thermostat to ensure an engine that won’t overheat or run too cold, directly affecting the cars cooling and heating system. You can usually check coolant at any repair shop and find guides online that help you to refill it yourself if you prefer to do it that way.

Blower Switch Causing No Heat

When choosing whether you want cold, hot, or other temperature levels, you should be able to feel each individual switch from level to level distinctly. If your airflow is working well, but you aren’t feeling the clicks between each individual level, chances are your blower switch is malfunctioning.

This isn’t a common problem that is often looked at or even recognized as something that may need to change, but it is usually often the problem if nothing else is broken. Using your car’s wiring diagram and a simple internet search, chances are you could find the switch and fix it without needing much help.

However, if necessary, most mechanic shops can usually fix or replace these switches for a bit of a cost.

How Much Does It Cost To Fix Heat In A Jeep?

The price of fixing the heat in a Jeep heavily depends on the actual cause of the problem. The cost of fixing your heat can range anywhere from $150-$2000 depending on a few things, such as:

  • What the problem is
  • How long it takes to fix it
  • The cost of labor
  • Where you go to get your jeep fixed

No matter where you go, you will have to pay at least a couple hundred dollars, but you can rest easy knowing you will leave with effective heat in your car.

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Final Thoughts

Having no heat in your car isn’t the greatest circumstance; however, thankfully, most of the time, it’s an easy or simple fix. Even if it’s not easy, it’s simple because it’s usually one of 5 or 6 issues, which makes it easy for the mechanics to narrow things down.

No matter what needs to be fixed on your jeep, if it’s broken and affecting your heat, it can also affect your motor, which needs to be fixed before it causes more problems.

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