Noise from hydro cooler?

[tman1020]

Just took the doors off my cab and noticed a odd noise coming from my Hydro cooler. I have noticed this noise before but it seems louder this time maybe because I just remove the doors from the cab most likely. Seems to be worse at around 2000 RPMs only when Tractor is sitting still. Not sure what's making it it feels like there is some vibration in the hydrocoolers like maybe there's air in the line as it goes through? Anyone else noticed this machine is a 2012 CT 225 with 77 hours on it.

 

[tman1020]

Just took the doors off my cab and noticed a odd noise coming from my Hydro cooler. I have noticed this noise before but it seems louder this time maybe because I just remove the doors from the cab most likely. Seems to be worse at around 2000 RPMs only when Tractor is sitting still. Not sure what's making it it feels like there is some vibration in the hydrocoolers like maybe there's air in the line as it goes through? Anyone else noticed this machine is a 2012 CT 225 with 77 hours on it.

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Just me?

 

[MoPops]

I'll be on mine this weekend, but it's only got about 20 hrs on it. I'll check.

 

[tman1020]

Thank you.

 

[ss4010]

Noticed the same thing on mine. It comes and goes. Still have yet to sort out the "source" of the noise.

 

[MoPops]

Ran it a bunch yesterday, but I had brush hog going. Even with it shut down, I couldn't hear anything. (Not sure what to listen for though.)

 

[tman1020]

It sounds like a flapping noise. I opened th hood and it is most prevalent at hydro cooler. If I put my hand on it when it is running I can feel the sound vibration on the in and out lines. It's probably nothing but it was just making me wonder. Thanks for the input.