my trim motor started playing up last time we went out. <br /><br />an intermitant problem going up which sounds like the pump slowly stops . i think it may be the soleniod at the bottom which controls the up/down trim/tilt, which has jammed and when i try to lift the motor it is pumping against itself.<br /><br />has anyone else had this problem? is it possible to service the solenoid valve thing.