I'm currently out at summit point and have an overheating or sensor issue. 2-3 laps in coolant temp goes all the way past red gradually but after driving for about a lap at lower rpms or going in to the pits for a moment the temp will shoot straight back to normal. Goes from full hot to normal in leas than a second. Then will rise back up over 1-2 laps. Never had any overheating issues before. Abient temperatures are about 95 degrees. 2013 Mustang gt. Anyone else ever have this issue before?
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