I have an 03 Element EX 2.4L with AT. I bought it used in 06 with approximately 37,000 miles, it now has 99,000 on it and has been virtually trouble free until the past few days. Other then routine fluid changes and brakes, the only thing I had to replace was the rear windshield washer motor (under warranty) and the battery in July 2007. The spark plugs were changed a few weeks ago and a diagonistic check run since the check engine light has come on twice. Both times the light went out after retightening the gas cap. The diagnostic check only showed one code for a bad gas cap. The past few days I've noticed its been "sluggish" when starting. Last night ran to the local convienence store and when I came out to leave it wouldn't start, fortunately I was only a short distance from home and walked back to get my son and the other car to jump start the element. When we got back the element started, but again it was very sluggish. This morning, nothing, wouldn't even crank over. I took the battery back to the parts store where I bought it and had them test it. Test said battery was good, but the fella at the store offered me a pro rated replacement for a new one. We discussed the fact that it might be the alternator and installing a new battery would rule out the battery as the reason it wasn't starting. Got home and tested the new battery with my meter to make sure it was O.K., 12.5 VDC so I knew the new battery was good. Put it in and connected the cables back. Turned the key, nothing, no clicks, no cranking just silence. All the indicator lights were on the dash. Turn the key to the off position and the little green key light was blinking until I took the key out of the ignition. Rechecked the cables to make sure they were on properly and tightened, everything O.K. there. I couldn't even get it started to check to see if the alterntor is/was doing its job of recharging the battery. I then checked all the fuses under the dash and under the hood, all of them were fine. I'm by no means a mechanic, and these new cars are all just wires and cable harnesses under the hood. I have no clue what might be the problem and could use any help you can offer before I have to call a towing service to have it flatbedded to a repair shop.