Yes, coolant leaks can cause the temperature gauge to act erratically. When coolant levels drop due to a leak, the engine may overheat, leading to fluctuations in temperature readings. Additionally, air pockets can form in the cooling system, disrupting the flow of coolant and causing inconsistent temperature readings on the gauge. It's important to address coolant leaks promptly to maintain proper engine temperature and function.
low coolant
Coolant Temperature Sensor
A low coolant level could cause the temp gauge not to read correctly. A faulty temp gauge sending unit could also be the cause. The coolant leak, you would have to find the source of the leak to determine the cause.
Low coolant, check when engine is cold.
engine coolant
Bad gauge or defective coolant temperature sensor
water temperature. 180-220 degrees
Low Coolant or faulty gauge
Head gasket. Do block test for gases in coolant
Yes it sure can.
Can be a defective temperature sending unit. If you just chance the coolant can be air trapped in the cooling system. You would need to bleed all air from the system. Can also be a defective gauge, but highly unlikely.
An inoperative temperature gauge will not alter how an engine runs, but the operator will not know if the water temperature has risen above normal without a properly working guage.