Have a 2005 Santa Fe. twice in the last 30 days it will not start. The dealer has had it both times and tells me the engine is flooded on all cylinders. We have put new plugs and wires on and even changed the oil since the dealer used the excuse a non Hyundai oil filter could be the problem. the first time it was moved and sat for about 2 hrs. and would not start. The second time drove to work came out after 8 hrs. and it would not start. Dealer cannot give me an answer. Says their diagnostic machine shows no problems. HELP