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Replace the heater core


Oct 11, 2018
Replace the heater core without removing the whole dash and steering column



 

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2008 Dodge Nitro blower resistor.


Nov 7, 2018
Fan was not working. Did a YouTube search got me looking at this unit.
 

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2007-2011 Dodge Nitro or 2008-2012 Jeep Liberty AC/Heater Blend Door Actuator Genuine


Nov 27, 2018
Factory New AC/Heater Blend Door Actuator Is A Direct Fit For The Following

-2007-2011 Dodge Nitro-

-2008-2012 Jeep Liberty-
 

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23,126 Posts
Dodge Nitro plugged heater core.


Jan 2, 2019
After I sucked out the CLR. I flushed out to the heater core with hose hooked up to 4 liter water jug. I did that a couple times. I put the heater hoses back on but in reverse direction which I believe dislodged all the sediment. The Nitro has fantastic heat now. I also did this on my own ein Dodge Ram truck. Thanks Phil.
 

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dodge nitro heater core box removal


Jan 4, 2019
Removing the heater core box in an 09 dodge nitro
 

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Replacement cooling fan


Apr 15, 2019
 

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2011 dodge nitro heater core


Sep 2, 2019
Heater core
 

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Dodge Nitro: Heater Not Working Diagnosis

May 4, 2019 by Jason



One of the most common (and inconvenient) problems with the Dodge Nitro is when it has no heat coming from the heater. Not having a functioning heater makes driving much less comfortable, and can be a sign of certain issues.

At the simplest level, there are two main reasons why the heater is not working. If it’s not coming on at all, it’s usually either the blower motor or some other wiring issue. 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.

P0316 Dodge Nitro
Nitro No Heat: 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. At this point, the blower motor blows air across the it and the newly heated air blows on to the driver and passengers. If the heater has stopped working in your Nitro, this process has failed in one way or another.


Dodge Nitro Heater Not Working: Diagnosis
A word of caution: If there is no coolant in your overflow, you can refill it by adding more to the overflow reservoir. There is almost never a situation where you would need to take the radiator cap off of the radiator to add coolant. The exception to that would be when you would have reason to believe that the hose going from the reservoir to the radiator is clogged. Anytime you’re putting your hand around the radiator or fans in the engine assume that they are hot and that the fans can kick on at any time, even without your key in the ignition.

Low Coolant

While not having enough coolant may make your engine run hotter, it can also cause your Nitro to not be able to create enough heat. Is there isn’t enough line pressure, due to low coolant, then the heater core will not be able to get any coolant itself.

You can verify this by checking the coolant level by taking a peek at the overflow reservoir. The overflow reservoir will be connected to the radiator by a tube coming from the top (usually right by the radiator cap). It should have separate lines to indicate “cool hot” and “cool cold”. Some vehicles only have full hot. Never touch the radiator cap unless the vehicle is ICE COLD.

Bad Thermostat

The job of your Nitro’s thermostat is to regulate the temperature of the engine. It does this by allowing water to enter the engine when it is getting hot, and by keeping coolant from entering while the vehicle warms up.

Sometimes when a thermostat goes bad, it stays stuck open. This allows the coolant to continuously enter the engine. When this happens it’ll feel like the heat is barely working, or you may notice that it’ll work if the vehicle isn’t moving, but if you get on the highway it stops working.

If your Nitro has a built in temperature gauge, take a look at it and see if it is in the spot it is normally in after a bit of driving. If it looks like it is colder than normal, that’s a pretty good indication that there is something wrong with the thermostat.


Heater Core
No Heat Diagnosis Dodge Nitro

The heater core itself can go bad. Over time, they are known to clog and fail. If you have a heater core that clogged, it’s not going to be able to pass coolant through. Without the warm coolant going through it, there can be no heat. A bad heater core can also leak, so watch out for that. Feel your passenger floorboard to see if it’s wet.

Heater core’s are typically pretty affordable.


Hose to/from the Heater Core
There are two hoses coming to and from the heater core. They both should feel warm or hot to the touch with the engine on. If one of the hoses is hot, and the other one is cold, that is a pretty good indication that the heater core is clogged. If the neither hose has any heat, you may have air in the cooling system, low fluid, or low pressure.


Water Pump
If you look at your temperature gauge, and the engine is running hotter than normal, but there is not heat coming from the heater you may be having issues with the water pump. Try taking the vehicle out of gear and revving the engine a little. If you feel the heat start to blow hot for a few seconds that’s an indication of a bad water pump or low coolant. Also, the serpentine belt going to the water pump going bad can it not turn as fast as it needs to.
 
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