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I of the nigh common (and inconvenient) issues with the Chevy Traverse is when it has no heat coming from the heater. Not having a functioning heater makes driving much less comfy, and can be a sign of certain issues.

At the simplest level, in that location are two main reasons why the heater is non working.  If it'south not coming on at all, it'southward ordinarily either the blower motor or another wiring issue.  If the rut is bravado, merely blowing cold, it has something to do with the coolant getting to the heater core, or the heater core itself.

Traverse 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 indicate, 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 Traverse, this procedure has failed in one style or another.

Chevy Traverse Heater Not Working:   Diagnosis

A word of caution:  If there is no coolant in your overflow, y'all tin 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 exist when you would have reason to believe that the hose going from the reservoir to the radiator is clogged. Anytime you lot're putting your hand around the radiator or fans in the engine presume that they are hot and that the fans tin kicking on at whatever time, even without your key in the ignition.

Low Coolant

While non having enough coolant may brand your engine run hotter, it can too crusade your Traverse to not be able to create enough heat.  Is there isn't enough line pressure, due to low coolant, and then the heater core will not exist able to become any coolant itself.

Y'all tin 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 past the radiator cap).  It should have split up lines to betoken "absurd hot" and "cool cold".  Some vehicles only take total hot.  Never touch the radiator cap unless the vehicle is ICE COLD.

Bad Thermostat

The job of your Traverse'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 upwards.

Sometimes when a thermostat goes bad, information technology 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 y'all may discover that it'll work if the vehicle isn't moving, merely if you get on the highway information technology stops working.

If your Traverse has a congenital in temperature estimate, take a look at it and encounter if it is in the spot it is normally in afterwards a bit of driving.  If it looks similar information technology is colder than normal, that'south a pretty good indication that there is something incorrect with the thermostat.

Heater Core

The heater core itself can go bad.  Over fourth dimension, they are known to clog and fail.  If you take a heater core that chock-full, it's not going to exist able to pass coolant through.  Without the warm coolant going through it, there tin be no heat.  A bad heater core can also leak, so sentry out for that.  Feel your passenger floorboard to meet if it's moisture.

Heater core's are typically pretty affordable.

Hose to/from the Heater Cadre

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 oestrus, you lot may have air in the cooling system, low fluid, or low pressure.

Water Pump

If you wait at your temperature gauge, and the engine is running hotter than normal, only in that location is non heat coming from the heater you may be having issues with the water pump.  Effort taking the vehicle out of gear and revving the engine a niggling.  If y'all experience the oestrus 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 tin information technology not plow every bit fast every bit it needs to.

Here'southward symptoms of a bad water pump from Autoblog.

Conclusion:  Estrus Not Working Chevy Traverse

It tin exist tough to find why your Traverse'southward heater is blowing cold.  But, using the info to a higher place about how and why a heater would fail can make it a lot easier.  If at that place is anything you would like to add, please feel gratis to exit a comment below.

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Source: https://www.700r4transmissionhq.com/chevy-traverse-no-heat/

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