keeping it cool - Toyota Yaris Forums

SirDigby · 01-22-2023, 05:35 PM

the coolant is bright pink and gets crusty when the water has evaporated out. the main thing is to check the water pump, as they leak all the time. then take a flashlight and look at everything that has coolant in it. look for the crusty-ness. there is a blue fluid that checks for internal head gasket leaks. (coolant-to-oil leak) you can get from an auto parts store; it has a suction bulb that you attach to your radiator. it pulls the vapor of the coolant through the blue fluid and the fluid turns green with the presence of hydrocarbons. (fuel/oil contamination) also remember coolant will evaporate over time. it will become acidic over time. change your coolant every 3 years.
DO NOT USE STOP-LEAK!!!!!
never use any kind of stop-leak in any kind of system ever! (coolant, oil, transmission, a/c, etc.) stop-leak is a terrible product that causes more problems than it will ever fix. only in an extreme emergency situation should it be considered. fix it right, or don't fix it at all.

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01-22-2023, 05:35 PM	#4
SirDigby View User's Garage Drives: 2007 yaris 3 door Join Date: Sep 2015 Location: Denver, Colorado Posts: 1,000	the coolant is bright pink and gets crusty when the water has evaporated out. the main thing is to check the water pump, as they leak all the time. then take a flashlight and look at everything that has coolant in it. look for the crusty-ness. there is a blue fluid that checks for internal head gasket leaks. (coolant-to-oil leak) you can get from an auto parts store; it has a suction bulb that you attach to your radiator. it pulls the vapor of the coolant through the blue fluid and the fluid turns green with the presence of hydrocarbons. (fuel/oil contamination) also remember coolant will evaporate over time. it will become acidic over time. change your coolant every 3 years. DO NOT USE STOP-LEAK!!!!! never use any kind of stop-leak in any kind of system ever! (coolant, oil, transmission, a/c, etc.) stop-leak is a terrible product that causes more problems than it will ever fix. only in an extreme emergency situation should it be considered. fix it right, or don't fix it at all.