The lift went in for a routine service with no mechanical issues. Came out the shop with the following issues: I ran the lift about an hour when it started spraying hydrologic oil out the air breather cap at rear of machine (the hood is missing). Then it lost its forward and reverse motion. All the fork controls still work fine. I can turn off the machine and crank right back and have either forward or reverse motion for a few seconds and then it stops pulling. It won't even stop when I press foot pedal for opposite direction. Sometimes when it looses its pull, I can throttle it up high and it will begin to pull again for a few more seconds but this doesn't always work. I tool the lift back to the shop. They said the foot pedal went bad and they replaced with a new one. I get the lift back and it's still doing the same. Not knowing much about them, it seems to be some sort of pump issue. Any help with this would be greatly appreciated!!! Thanks.