Why is my 2016 Hyundai sonata overheating

Asked by Feb 17, 2019 at 11:30 AM about the 2016 Hyundai Sonata

Question type: Maintenance & Repair

My Hyundai sonata car keeps saying engine
overheating the gauge goes all the way to hot then
goes back down what can this issue be please

8 Answers


Can be a lots issues , radiator, water pump, or the thermostat, need to get that checked before you blow the engine... if the car heats up and comes back down may be a chance that is the thermostat... but you want to get that checked

2 people found this helpful.

Hey just realize my fan isn't moving that could be the cause for temp to climb right?


Check for the fuse for the fan , or the connection, but usually the fan only turns on when the radiator gets hot to cool down

1 people found this helpful.

If you're certain that the engine is not actually overheating and this is a gauge problem, it's either the gauge (doubtful), the sending unit, or the engine coolant temperature sensor..... If it IS overheating, it can be caused by several things. A broken water pump, for sure. But it could be a sticking thermostat, clogged radiator, collapsed hose, bad radiator cap, air in cooling system. There could even be mechanical issues with the engine that cause this. Start by checking coolant flow. Is the top hose hot? if not it's the thermostat. If it is, with radiator cap off see if there is flow. If not, it's the radiator. If flow, purge air from the system (videos on line explain this simple procedure). This covers 90% of overheating problems.

3 people found this helpful.

How do I remove glove box of 2016 sonata?

Ok yea for it to be overheating nothing under the hood is hot

My car temperature gauge is going up and down, my engine and coolant is cool. My fan comes on I have no leaks could this be a sensor or a stuck thermostat?


Defective engine coolant temperature sensor.

1 people found this helpful.

Your Answer:


Looking for a Used Sonata in your area?

CarGurus has 1,499 nationwide Sonata listings starting at $2,499.

Postal Code:

Hyundai Sonata Experts

  • #1
  • #2
  • #3
View All

Find great deals from top-rated dealersTM


Related Models For Sale

Used Hyundai Elantra
119 Great Deals out of 5,357 listings starting at $1,900
Used Honda Accord
52 Great Deals out of 1,914 listings starting at $2,795
Used Toyota Camry
53 Great Deals out of 1,428 listings starting at $2,500
Used Kia Optima
29 Great Deals out of 824 listings starting at $5,499
Used Nissan Altima
47 Great Deals out of 1,455 listings starting at $1,995
Used Honda Civic
153 Great Deals out of 6,173 listings starting at $1,700
Used Ford Fusion
30 Great Deals out of 1,515 listings starting at $2,800
Used Toyota Corolla
105 Great Deals out of 6,857 listings starting at $2,200
Used Chevrolet Malibu
38 Great Deals out of 2,621 listings starting at $2,300
Used Nissan Maxima
14 Great Deals out of 322 listings starting at $2,720
Used Hyundai Santa Fe
36 Great Deals out of 3,116 listings starting at $2,980
Used Hyundai Tucson
87 Great Deals out of 4,159 listings starting at $2,995
Used Chevrolet Cruze
105 Great Deals out of 4,120 listings starting at $2,795
Used Mazda MAZDA3
46 Great Deals out of 3,889 listings starting at $1,995
Used Chevrolet Impala
17 Great Deals out of 760 listings starting at $2,495

Used Cars for Sale

2019 Hyundai Sonata For Sale
8 Great Deals out of 404 listings starting at $19,977
2018 Hyundai Sonata For Sale
6 Great Deals out of 120 listings starting at $14,500
2017 Hyundai Sonata For Sale
9 Great Deals out of 111 listings starting at $11,800
2016 Hyundai Sonata For Sale
3 Great Deals out of 133 listings starting at $11,988

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.