Why does tempature gauge move?

Asked by Guru9VX5VZ Apr 12, 2021 at 06:28 PM about the 2011 Chevrolet Silverado 1500 LS Extended Cab 4WD

Question type: Maintenance & Repair

Truck temperature gauge increases between half and 3/4 when going up hill in
the woods at higher elevation and can smell antifreeze, when antifreeze level
checked no leaks

1 Answer

Obviously you have a small leak. I would do a full cooling system service. Hoses, flush, belt etc. Be sure and purge air out of the system. I recommend Water Wetter to reduce operating temps.

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