I have a 2002 Deville DTS It usually crank right up when i turn the key but now I have to keep turning the ignition over for 5-10 seconds to get it to crank. once the engine is warmed up it will crank with just the turn of the key without holding it .Would that be the starter going bad or the relay? The starter is not dragging and seems to be turning over strong. Just wondering what this could be before take it to the shop. Is it possible to be a injector problem cause it turn over like its not getting gas?? Kind of confused because it will fire right up when the engine is warm to hot.