[jdkskyking]

I recommend documenting the symptoms in order, clearly and specifically, and posting them here or in a new thread. Provide details about the year coach, engine type, mileage, if you believe the pump is original or if there are maintenance records that point to past problems with the systems.

Keep in mind that your hydraulic system serves two purposes so if you experience cooling issues that could be an important data point.

Pictures are always helpful to held describe your concerns or observations.

I’m sure once you get some information out to the Gurus you’ll be on track for a solution.