i've been having a problem with my trim pump that i can't figure out. the outdrive will go down just fine, but when i bring it up, it is very slow. i can pick the outdrive up manually and have someone trim up the outdrive and it will stay in the up position when i let go. the motor will not bleed down over time. anyone know what is going on?. it does make a little different noise when trimming up. a more whining noise. i don't think there is air in the system and there doesn't seem to be water in the system. i just replaced the fluid when i replaced the solenoids in the spring and it worked good for the first ten or so times i raised and lowered it but it is doing the same thing again. it did this before i replaced the solenoids and drained the fluid. let me know if anyone has any solutions.