One such problem for the Chevy Cruze is the coolant system which is notorious for having issues.
From overheating to not heating at all, the coolant system causes problems for many owners.
The first thing to do with any vehicle that is overheating is to check that it has a coolant and there are no leaks.
The coolant is checked and added at the reservoir located on the passenger side up against the firewall.
The car may just need some coolant added, but usually, if it is low, there is a problem somewhere.
Causes and Fixes Chevy Cruze Overheating
- Fix #1: Thermostat
- Fix #2: Water Pump
- Fix #3: Radiator
- Fix #4: Cooling Fan
- Fix #5: Coolant Hoses
- Fix #6: Coolant Temperature Sensor
When the car is cold, the thermostat stays closed, allowing the vehicle to warm up quickly.
As the car heats up, the thermostat opens, and coolant flows into the system.
If the thermostat does not open properly, the vehicle will overheat.
If the thermostat gets stuck open, it will not let the car heat up quickly and can be an issue in very cold weather.
When it is very cold, a good thermostat will stay closed or partially closed to help the engine warm-up.
If it becomes stuck open and the weather is freezing, the heater inside the Cruze will not work.
It is a common complaint to mechanics about the Chevy Cruze in very cold climates that there is no heat.
Often when the thermostat goes bad, it will leak, but in some cases, there is no leak.
The pump works from the same belt that powers the alternator, so be sure the belt is good, or the same symptoms will appear as a bad pump.
The water pump usually leaks when it malfunctions, causing a coolant smell often described as a sweet smell.
The hot fluid goes into the radiator and as air passes outside through the fins, the coolant cools down.
Often the radiator is just low on coolant, which can be added, but it may also have a leak.
A small leak or a bad radiator cap can allow coolant to slowly evaporate as the engine heats up.
A big leak will be very obvious as coolant will drip or pour out; small leaks can be harder to find.
If the car is overheating while stationary and not moving but does not overheat while driving on a freeway over 20-30 MPH, the fan has likely failed.
A loud fan is a common complaint when it goes bad, but the fan can also fail and make no noise.
This includes the big hoses going to the radiator and also a small third hose on the water pump and the reservoir hoses.
The heater coil inside the car will also have hoses going to it.
Following the hoses around looking for aged ones that are leaking is the quickest way to troubleshoot a problem.
For small leaks that can’t be found, mechanics will often use a smoke machine to input smoke that comes out of the leak.
Also, a pressure test can be done with the right machine.
If the sensor goes bad the car will get bad data and may display it is overheating when it is not.
While rare for this to happen it is something to keep in mind.
The Chevrolet Cruze is a great car for many and can operate well for a long time with no issues.
Like all vehicles, the Cruze does have some common problems, mainly with the heating and cooling system.
The system is not complicated with the main components, including the radiator, fan, water pump, and thermostat.
As long as these parts are watched for failure and swapped out as they age, the Cruze will continue to drive and operate.
Aging hoses can also be an issue and should be replaced if they look old and cracked.
Have you had a problem with the Chevy Cruze overheating? Let us know your thoughts below.