Hi , just put 5ltr oil into engine of kia sedona auto 2004. Engine starts fine but will not engage gears except under high revs, then barely moves, any idea,s.?. N B, recently changed battery 4 new 1, since then the radio does not work, nor the rear wiper, maybe this helps with answer, thx. Also had spare key programmed by timpsons 2 weeks ago..p.s how long does it normally take to receive an answer to my email?. Let me rephrase the question, how do i get the engine to engage with the auto gearbox under these conditions ?..