Hydraulic Noise

[fordru]

Anybody had a 'squealing' like noise every time the accelerator is used with high range? Doesn't happen in low range. B2100 HST with 150 hours on it. The noise will eventually fade away after 10 to 15 minutes.

Any help would be appreciated.

 

[Anonymous Poster]

I have a 1999 B7300 with 27 hours that started making a odd sqealing noise also, it started when the temps got real cold. I think its the auxilary hydraulic pump cavitating. the return line is exposed and doesn't get enough heat from the motor to thin down the oil.