Hello Randy and welcome to iRV2.com. We are glad to have you join us here and I am sure you will enjoy the website. We look forward to reading of your adventures and experiences.
I suspect you have air in the system and this will need to be purged. Ask your tech to carefully inspect the hydraulic lines for any deterioration and replace any lines that are suspect. He should at least purge the system but you may want to go ahead and drain the system and install new ATF Dextron III or equivalent fluid and then purge the system of air. Once this is done, the system can be tested for any other problems. You could have a bad solenoid or piston.
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7