2004 Kia Optima Temp Gauge Red Car Running Hot Change Sensor Unit Still Red

2004 KIA OPTIMA
113,000 MILES
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VAHITTER
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  • 1 POST
temp gauge in the red, but car is not running hot. change the temp sensor unit but gauge still going to red. #2 i have a 5hr trip, is it ok to drive
Dec 21, 2012 at 3:55 PM
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KHLOW2008
  • ✓ASE Certified Mechanic
  • 41,814 POSTS
  • ASE Certified Mechanic
If it is a false reading, yes, you can drive but remember you won't know when and if the engine starts to overheat.

Either the gauge is faulty, the sending unit shorted or the ground circuit is poor.
Dec 21, 2012 at 4:31 PM
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