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Reply to "'74 Temperature Guage Problems"

The sound is likely either steam or air bubbles, neither of which are encouraging news. The problem with the sender in the tank is, if/when the water level drops below the sender, the gauge temp will suddenly drop to about 160, which is the air temp above the very hot water. Be very sure the tank is full to the top, that the small hose connecting the small swirl tank to the large overflow tank is not cracked, and that the pressure cap on the small tank is not leaking, then go drive it a while & recheck the water level after it cools off. If the water is now low, there's something not working right.
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