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Old 09-07-2021, 09:51 AM   #1
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Too much coolant setting off low coolant alarms???

So my check engine light came on along with a message on my command center. Message reads "Alarm. Engine Coolant Level % 101.6 Value too low"

Seems odd to me that having 101.6% is too low. I have the proper amount of coolant in the reservoir and the coach cooling system seem to work fine.

I bought a new coolant level sensor, but it came DOA. When I swapped out the old one I got actual "low coolant" alarms with "low coolant" displayed on the dash and audible alarms.

Anyone ever see this before?
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Old 09-07-2021, 10:18 AM   #2
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Quote:
Originally Posted by Freightguy View Post
So my check engine light came on along with a message on my command center. Message reads "Alarm. Engine Coolant Level % 101.6 Value too low"

Seems odd to me that having 101.6% is too low. I have the proper amount of coolant in the reservoir and the coach cooling system seem to work fine.

I bought a new coolant level sensor, but it came DOA. When I swapped out the old one I got actual "low coolant" alarms with "low coolant" displayed on the dash and audible alarms.

Anyone ever see this before?
Draw off a gallon and see if the readout changes.
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Old 09-07-2021, 10:22 AM   #3
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Tried that, no change.
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Old 09-07-2021, 12:00 PM   #4
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Tried that, no change.
Well, then I'd get another sensor from another vendor. Good luck!
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Old 09-08-2021, 04:37 AM   #5
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Kysor is the manufacturer of the coolant level sensor for Freightliner.

Some of the aftermarket sensors are hit and miss.
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Old 09-08-2021, 05:46 AM   #6
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Not totally unrelated. Last night I dug out the wife's old HP Stream with Win10. Wanted to bring in the updates and check see for the long-shot possibility it would be Win11 ready. Anyway the battery had been getting ever weaker. Now it was reporting 255% charge. Deader than dead. So it goes with dixie cup designed electronic stuff!
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