2001 Hyundai Sonata Thermostat staying on C for about 5 min


Engine Mechanical problem
2001 Hyundai Sonata 4 cyl Automatic 84,000 miles

In about August of this year my car's thermostat has been sticking on cold for maybe 5 minutes (maybe less) and when the thermostat is stuck the car seems to be unable to change gears correctly. It's jerky and hard to control.

However, after a few minutes the gauge will go to it's proper place and the car acts fine!

I JUST got the thermostat replaced today hoping that was the problem but sadly, it's still doing this.
Could there be a vacuum leak?

Do you
have the same problem?
Friday, October 8th, 2010 AT 8:05 PM

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