REASONS YOUR TEMP GAUGE GOES UP AND DOWN | HOW TO FIX IT

[@garydurandt4260]

Thought you would have mentioned the radiator cap as well?

[@fixit3879]

We probably forgot to do that. Thank you for sharing.

[@luckyb4541]

can you still buy a coolant level guage??? measures antifreeze to water ratio

[@fixit3879]

Yes, you can still buy coolant level gauges that measure the antifreeze-to-water ratio. These devices typically come in the form of hydrometers or refractometers. Hydrometers: These are simple tools that float in a sample of coolant and give a reading based on the specific gravity, which can indicate the concentration of antifreeze. Refractometers: These are more precise instruments that measure the refractive index of the coolant, providing a direct reading of the antifreeze concentration. What kind of car you got? Good Luck!

[@luckyb4541]

@@fixit3879 2000 626 Mazda 2.5 v6 5sp I was having over heating issues and I comepletely forgot to check the rad cap , it was failing . Its better now but my temp still rises abnormally if I speed up to 75 80 Maybe the rad is clogged? Maybe the coolant water ratio is deluted? 24 yr old radiator ?? Does a rad lose its cooling ability over the years? Runs perfect , doesnt burn a drop. Overflow reservoir replaced . all hoses replaced. , new waterpump , head gasket timing chain . Cant figure out this over heating problem

[@vanlendl1]

A broken water pump can end in an engine blowout, what is life-threatening at higher speeds. I had to experience this by myself. The water pump needs to be replaced with the timing belt. But, it is not always done. If you buy a used car, change water pump and timing belt, if you have no EVIDENCE that it was changed.

[@fixit3879]

Oh wow. I am sorry that you had to go through that. Appreciate the comment. Thank you for sharing.