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Q:

my engine temp gauge wont work in cold weather on 2001 Chevrolet Monte Carlo

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
engine temp gauge wont work in cold weather and the cooling fans come on, when i turn off the car. when the weather warms up everything goes back to normal.
(1) Answer
This sounds like your engine coolant temperature sensor needs to be inspected. Do you ever have a check engine or service engine soon light coming on?

http://repairpal.com/check-engine-light