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Cooling issue

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Old Nov 18, 2025 | 01:15 PM
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Default Cooling issue

2015 Ultra Limited with updated cooling pump. Fired it up today, while warming up got an engine light and coolant light. Shut it down and checked the DIAG and pulled ECM code P1019. Coolant reservoir is normal, cooling fans turn on and the pump is running. cleared code, fired it back up, engine and coolant light came back on, this time I noticed a small amount of coolant on the ground under the bike. Shut it down, rechecked everything including removing water pump cover, cannot see anything abnormal. Cleared code, fired it back up, no active leaks and no engine light or coolant light. Let it idle for about 10 minutes then took it out for a 10 mile or so ride. Engine/Coolant ride lights never came back on. Bike is running normal. Could this be a radiator cap issue where I was losing pressure and then some fluid discharged through the coolant vent hose. Has anyone experienced this?

Thanks!
 
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Old Nov 18, 2025 | 01:22 PM
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Maybe
 
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Old Nov 19, 2025 | 03:40 AM
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I had a 2022 twin cooled bike that did the same. The reservoir cap wasn’t on tight causing the issue.
 
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Old Nov 22, 2025 | 07:00 PM
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I thought I had my coolant cap on tight experienced same issue checked cap and tightened it some fixed problem
 
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Old Nov 23, 2025 | 10:50 AM
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Originally Posted by topcat1st
I thought I had my coolant cap on tight experienced same issue checked cap and tightened it some fixed problem
Nice when it’s a simple fix!
 
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