Why my temperature gauge goes up 1 line pass half for a while goes back down

Asked by Feb 26, 2016 at 12:25 PM about the 2001 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

1 Answer

5,695

Your temp will be regulated within an operating range. One "line" up or down would not be unusual. It probably reacts this way when your cooling fans turn on and off to maintain proper operating temp. As long as it stays in the "good" range and your cooling system reservoir is showing "full", I would not be concerned about it.

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