I have a 444C wheel loader that is having transmission issues. It feels somewhat slow accelerating, and when you get to even a small hill it slows way down, almost doesn't move on a steep hill with engine wide open. While it's doing this the transmission whines, sort of like a cross between a whine and a whistle, it gets higher as you accelerate. It still operates somewhat normally on the flat, I use it daily. I've put new transmission fluid in, JD Low Viscosity, which is what it's rated for. It does have a trans fluid leak, but I make sure to keep it topped up. I've replaced the two filters behind the steps to the cab, are there any other filters affecting the trans fluid? Also, the trans fluid pressure goes into the red slightly when you accelerate, then drops down when you let off. Any ideas?
JD 444C Transmission whine and slow response
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