I had a problem with the range on the tilt trim on my 2006 4.3 gxi-f sx-m outdrive. This started last season when I noticed that the bottom of the drive was sitting in the mud at low tide.I checked the trim switch had been pressed to fully up position. I thought it must have been a problem with the sender so changed this, but the problem is still the same.if I remove the sender, the leg will trim fully up and down but with the sender in I lose the full range of movement. Any ideas?