Https://www.youtube.heat Went Cold on Jeep Then Warm Again

One of the about common (and inconvenient) problems with the Jeep Patriot is when information technology has no heat coming from the heater. Not having a operation heater makes driving much less comfortable, and can be a sign of certain issues.

At the simplest level, at that place are two main reasons why the heater is not working.  If it'southward not coming on at all, it's usually either the blower motor or some other wiring issue.  If the heat is bravado, merely blowing common cold, information technology has something to do with the coolant getting to the heater core, or the heater cadre itself.

Patriot 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 cadre.  At this point, the blower motor blows air across the it and the newly heated air blows on to the commuter and passengers.  If the heater has stopped working in your Patriot, this process has failed in one mode or another.

Jeep Patriot Heater Non Working:   Diagnosis

A give-and-take of caution:  If there is no coolant in your overflow, you can refill information technology past calculation more to the overflow reservoir.  At that place is nigh never a state of affairs where y'all would need to have the radiator cap off of the radiator to add coolant. The exception to that would be when you would accept 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 tin can kicking on at any fourth dimension, even without your fundamental in the ignition.

Low Coolant

While non having plenty coolant may brand your engine run hotter, information technology tin can also cause your Patriot to not be able to create enough heat.  Is there isn't plenty line pressure level, due to depression coolant, then the heater cadre volition not exist able to get any coolant itself.

Y'all can verify this by checking the coolant level by taking a peek at the overflow reservoir. The overflow reservoir will be continued to the radiator by a tube coming from the top (usually right past the radiator cap).  It should accept separate lines to indicate "cool hot" and "cool common cold".  Some vehicles just have full hot.  Never impact the radiator cap unless the vehicle is Water ice COLD.

Bad Thermostat

The job of your Patriot'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 inbound 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 experience similar the rut is barely working, or you may observe that information technology'll work if the vehicle isn't moving, but if y'all get on the highway it stops working.

If your Patriot has a built in temperature guess, take a wait at information technology and see if information technology is in the spot information technology is commonly in after a fleck of driving.  If it looks like it is colder than normal, that's a pretty skilful indication that in that location is something wrong with the thermostat.

Heater Core

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

Heater core'southward 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 affect with the engine on.  If 1 of the hoses is hot, and the other one is common cold, that is a pretty expert indication that the heater cadre is clogged.  If the neither hose has any heat, yous may have air in the cooling arrangement, depression fluid, or depression pressure.

H2o Pump

If you look at your temperature gauge, and the engine is running hotter than normal, but there is not estrus coming from the heater you may exist having problems with the water pump.  Try taking the vehicle out of gear and revving the engine a picayune.  If you feel the oestrus starting time 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 tin information technology not turn as fast as it needs to.

Here'due south symptoms of a bad water pump from Autoblog.

Determination:  Rut Not Working Jeep Patriot

Information technology can be tough to find why your Patriot'south heater is blowing cold.  But, using the info above near how and why a heater would fail tin brand information technology a lot easier.  If there is anything you lot would like to add together, please feel free to leave a annotate below.

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Source: https://www.700r4transmissionhq.com/jeep-patriot-no-heat/

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