I purchased this truck from Luther Toyota in the Twin Cities area. Beautiful vehicle at first glance. In 30 days, low beam went out, brakes were screeching, muffler was loose, and now the steering is becoming dangerous. I fixed everything except the steering and need advise as to the over-riding problem before I take it back to the dealer. It is hard to steer around corners. Steering fluid is fine. Could it be the steering pump or something worse. What should be the extent of my repair bill?