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2003 Toyota 4Runner Limited 4dr V6 Auto (Natl)

2003 Toyota 4Runner
Trim Info:
Rear Wheel Drive, 4 Door Limited, Sport Utility Vehicle
18 mpg city / 21 mpg hwy
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February 24, 2013, 8:49 pm

Sang K
 

Question: How do you fix coolant gauge getting to hot

Coolant gauge going all the way up to hot. Checked pump in radiator and it seems to pump. Have plenty of coolant. Engine light doesn't come on. No sensor saying bad signal.


February 24, 2013, 9:11 pm

Ron W
Expert Mechanic

Could be a sensor that is out of range butt may not set a code. It could be that is is just reading the wrong temperature. It also could be a defective gauge, or corrosion in the sensor wiring. A little electrical diagnostics is needed to isolate which is the cause and what is the best fix.


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