Low coolant light and beeping but coolant level is fine?
#1
Triangles and Cats
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Low coolant light and beeping but coolant level is fine?
All of a sudden my car has been beeping really loudly inside the cabin and showing the low coolant light but when i go to check the coolant level its fine. Car has run absolutely flawlessly since i bought it so this is rather troubling. And yesterday it started to run much hotter than normal, like 3/4 of the way up the temperature gauge vs the normal 1/2 or so. Maybe i need a new radiator cap? Any ideas as to what it could be?
#4
Information Regurgitator
This worries me as the S5 gauge doesn't tend to move until it is already too hot. Could be low and when your driving there is enough flow over the sensor to keep it happy.
#5
Triangles and Cats
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Where are you checking it? At the overflow or the radiator? Since your profile says 90 vert you can check the level in the Rad.
This worries me as the S5 gauge doesn't tend to move until it is already too hot. Could be low and when your driving there is enough flow over the sensor to keep it happy.
#6
Information Regurgitator
With it cold/cooled down enough that there isn't pressure in the system so you don't get sprayed with hot coolant check it at the radiator.
Also I have seen bad radiator caps that would let the system push coolant out to the overflow but would never draw it back into the radiator as it cooled as it should. After multiple times of this you don't have enough coolant in the system anymore and overheating occurs.
Also I have seen bad radiator caps that would let the system push coolant out to the overflow but would never draw it back into the radiator as it cooled as it should. After multiple times of this you don't have enough coolant in the system anymore and overheating occurs.
#7
Triangles and Cats
Thread Starter
With it cold/cooled down enough that there isn't pressure in the system so you don't get sprayed with hot coolant check it at the radiator.
Also I have seen bad radiator caps that would let the system push coolant out to the overflow but would never draw it back into the radiator as it cooled as it should. After multiple times of this you don't have enough coolant in the system anymore and overheating occurs.
Also I have seen bad radiator caps that would let the system push coolant out to the overflow but would never draw it back into the radiator as it cooled as it should. After multiple times of this you don't have enough coolant in the system anymore and overheating occurs.
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#8
Triangles and Cats
Thread Starter
With it cold/cooled down enough that there isn't pressure in the system so you don't get sprayed with hot coolant check it at the radiator.
Also I have seen bad radiator caps that would let the system push coolant out to the overflow but would never draw it back into the radiator as it cooled as it should. After multiple times of this you don't have enough coolant in the system anymore and overheating occurs.
Also I have seen bad radiator caps that would let the system push coolant out to the overflow but would never draw it back into the radiator as it cooled as it should. After multiple times of this you don't have enough coolant in the system anymore and overheating occurs.
#9
Information Regurgitator
Yep. When I had the stock radiator I always filled/kept it where fluid was visiable in that tube just below the cap. I'd replace the cap as they don't cost much while I was at it.
#10
Triangles and Cats
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#11
Triangles and Cats
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Let the car sit overnight and apparently the car actually was very low on coolant. Whoops. Anyway it runs great still and is not overheating or running ridiculously hot anymore.
But my question is that could i be losing coolant? What would it mean if i am?
But my question is that could i be losing coolant? What would it mean if i am?
#14
Triangles and Cats
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Theres absolutely no smoke from the exhaust though so i feel like thats out
#15
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Has any steam come out of the radiator cap opening when you had the cap off?
#18
Triangles and Cats
Thread Starter
There doesn't need to be smoke coming from exhaust. Just had this same issue with my engine, 87' TII, and it didn't smoke until the very last day it was able to run. This was only because it failed completely. Only had 60K on the original motor, though I believe when it was sitting for almost two decades that it had coolant in it at some point, possibly eating away at the iron. I'll know more about mine in a couple weeks when Banzai starts the rebuild. Your issue sounds almost identical.
Has any steam come out of the radiator cap opening when you had the cap off?
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