John Deere 4200 leak

[gregmartin]

I've noticed this winter my John Deere 4200 has a very very slow coolant leak. It only leaks when the temp. Is below zero. And this year where up to about 50 so far,( and tonight March 3 it's suppose to get to 15 below, a new record. ) I use prime airily in the warmer months. I haven't looked into the problem to much yet,I checked the hoses they seem fine, & water pump seems tight.any ideas.

 

[sunnyside360]

Wish I could help you. Noticed this exact same thing on my 2010 4320. Only a drop or so on the floor when temperature is down around zero and below. Tightened all hose connections which did not change anything. Plan to check it out more when weather is better.

 

[gregmartin]

Wish I could help you. Noticed this exact same thing on my 2010 4320. Only a drop or so on the floor when temperature is down around zero and below. Tightened all hose connections which did not change anything. Plan to check it out more when weather is better.

Thanks sunnyside 360, that's funny, maybe it's more common than I think.i think something must contract from the super cold weather a little bit causing the leak?