Noticed a problem the other day with the steering on my boat. Teleflex duel rack & pinion is sticking bad when running. Feels fine at idle not sticking and is as free as day one, but when up on plane sticking to the point of have to pull on it hard to freeit. Not as bad when trimmed all the way up but still does it. Nothing has changed on the setup of the boat. Any ideas on what could be the problem. I have greased the rack on the motor and no inprovement.