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Overheating of the cars engine

Tiny
LUCIUS LEWIS
  • MEMBER
  • 2012 KIA OPTIMA
  • AUTOMATIC
  • 95,500 MILES
Car was overheating took to shop they said a fuse was blown which was causing my A/C not to work properly. Two days later the car started to do the same thing it felt like the engine was having trouble going up hills and the heat meter spoke very fast. I cut the heat on high and the temperature came back to normal drove until I could pull over.
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Sunday, April 30th, 2017 AT 8:31 PM

1 Reply

Tiny
CARADIODOC
  • MECHANIC
  • 33,873 POSTS
The heater is a small radiator. If running the heater brings the temperature down, most likely the radiator fan is not turning on. If there is a blown fuse, and replacing it solved the problem for two days, it is fairly certain the fan motor has tight bearings, and that is making it draw excessive current, which will blow the fuse again.

Wires rubbed though can cause a fuse to blow too, but a tight motor is more common. If you can reach the fan blade and give it a spin, it should spin freely for many revolutions. If it has tight bearings, it will stop spinning as soon as you let go of it.
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Monday, May 1st, 2017 AT 7:02 PM

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