Mostly Greek to me Steve! I did see that thread and I will check the hoses best I can in the morning for kinks. Like I said new problem just started so I'm guessing that all those pressures have been good and should still be unless something broke. This is not a strong , snatch it out of your hand kind of jerking. It is noticeable but very slight and not hard to control.
Next problem would be to find someone with the skills, where I am, without making me wait for 3 weeks for an appointment. Old hat for you guys but very new territory for me.
I will try topping off the fluid and disengaging the Jake brake when slow speed maneuvering to see what happens. My Jake is always on when traveling because I need it to have cruise control working.
Where is the Hydraulic oil cooler and what does it look like?
Thanks again and sorry for the non-mechanic type questions. I'm trying to figure this stuff out before something important falls off!
Jerry