Hi friends, great info and I have a little bit to add - these plastic reservoirs don't last forever. I've seen other videos where the tank was clogged up, not allowing coolant to be in contact with sensor. Personally, I went to change my sensor and when I pulled the old one out, no coolant leaked out.
Low coolant will cause the “check” light to come on, but not the check engine light. If you actually have an engine symbol on your dash or an indicator that says to “check engine” you have something else going on.
Just a bit low on coolant. But it is the overflow reservoir. Not the primary system. So just because it pops up and says “critically low coolant” does not mean the main system is low or causing damage.
An optical sensor detects light. Not coolant levels. The point of the video was not to say the reserve coolant tank did not need coolant added. It was to point out the obvious fact that the primary cooling system level hasn’t even been affected yet when the critically low coolant alarm comes on. Of course if you had watched the video you might have understood that
It depends on the freeze point concentration of your coolant. Easy to test. If it is within acceptable limits for the climate zone you are in I would add 50/50 coolant. If you want the freeze point to lower for colder tempts I would add 100% coolant. If you do add water it is recommended to add distilled water in order to avoid mineral deposit buildups in your cooling system that could potentially cause a flow restriction. Although adding water on a roadside breakdown, if needed, is not going to destroy your cooling system. You can always flush it later if you’re concerned about it.
Thank u my coolant tank is full. And just got this error.
Hi friends, great info and I have a little bit to add - these plastic reservoirs don't last forever. I've seen other videos where the tank was clogged up, not allowing coolant to be in contact with sensor. Personally, I went to change my sensor and when I pulled the old one out, no coolant leaked out.
Very true
Mine did the same. No overheating but says coolant critically low.
Thank you so much for the great information
Just added coolant check engine light is still on. Hopefully it goes away.
Low coolant will cause the “check” light to come on, but not the check engine light. If you actually have an engine symbol on your dash or an indicator that says to “check engine” you have something else going on.
Thank you for this 🤧
You're so welcome!
Great info for others out there!
I have changed the sensor, but it still critical low.
Did you find out what it was
Just a bit low on coolant. But it is the overflow reservoir. Not the primary system. So just because it pops up and says “critically low coolant” does not mean the main system is low or causing damage.
You may have a wiring harness issue
Excellent
Always something isn’t it lol
It's a optical sensor and your tank is low .driver
An optical sensor detects light. Not coolant levels. The point of the video was not to say the reserve coolant tank did not need coolant added. It was to point out the obvious fact that the primary cooling system level hasn’t even been affected yet when the critically low coolant alarm comes on. Of course if you had watched the video you might have understood that
I watched your video thru I liked and shared it
And wasn't saying you were wrong
Have I been doing it wrong ? Are you supposed to add water to the coolant ? I usually pick up a bottle from the truck stop and never added water to it
It depends on the freeze point concentration of your coolant. Easy to test. If it is within acceptable limits for the climate zone you are in I would add 50/50 coolant. If you want the freeze point to lower for colder tempts I would add 100% coolant. If you do add water it is recommended to add distilled water in order to avoid mineral deposit buildups in your cooling system that could potentially cause a flow restriction. Although adding water on a roadside breakdown, if needed, is not going to destroy your cooling system. You can always flush it later if you’re concerned about it.
I added about one and a half gallons of tap water on the road side, should I be concerned? Should I get it flushed and add new coolant? Thanks.
Personally I would not worry about it.
How to clear it
Goes away on its own When you fill it back up
My coolant is full
ZERO information given in this video…
If you are not mechanically inclined you will need to just keep scrolling. The information given will not help you
Too noisy