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location of temp sensor on 1999 Cadillac DeVille

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
engine fan will not come on only when i turn the heat or ac on. location of temp sensor
(2) Answers
The coolant sensor on the northstar engine in your 1999 Cadillac DeVille is located on the back end of the rear head. Not very easy to get to as I remember. The cooling fans should come on at about 230 degrees.