2003 Lincoln nav awd engine is great may need a tune up the trans mission is great. If you do not know your way around a car get a mechanic when coming to see it or don’t inquire about this suv, thank you Problems: drive side may need new rotor or wheel bearing don’t know yet, mph over 50 it starts to shake , before I fix it or get it fix.I’m putting it on the market. The right side front hub bearing was replace the mechanic ordered the incorrect one so it is good but it make a ratchet noise when driving. The air condition is only blowing out of the windshield vent but it has heat and cold air, looking to sell it ASAP have too many cars right now and not enough space to put them