I have my F150 on AutoTrader and the 4 wheel drive will not engage. It is getting plenty of attention but I do not want to sell it in that condition without knowing what the problem is, or marking it down appropriately. Any ideas how much the dealership would charge, or how long it could take, or would I be better off marking it down and making buyers aware of the problem?

http://www.autotrader.com/cars-for-s...ngId=336709718

 

http://www.f150forum.com/f72/how-dia...m-esof-186872/