Ok well my 2001 ford expedition was running perfect until yesterday i get in it and it would not start so i tried to get a boost off but my battery is only two months old the radio works the lights and everything in the inside works i just recently paid for a complete tune-up, oilchange,and i forget but they changed a part to make it run smoother and faster after the tune-up it did so now when i turn off the ignition the abs, oil, coolant and the theft light all stays on and the theft light blinks really fast then it would not start this morning it seems like its about to start but just doesn't go all the way so i just let it sit then it starts perfectly goes to get gas then it would not start with the same problem thelights the blinking of the theft light so i'm just wanting to know is it something that is simple and maybe i can do or is it something huge

Csmock132... is this for real? another signal can make weird things happen to the expedition? i'm also trying to find out what the weird noise is when the truck is warmed up when i make left or right turns. when i am accelerating while turning it kinds of grinds.

I have a 2001 Expedition. There seems to be a problem with leakage around the front window and the firewall during rain. You may want to see if you have water dripping on your fuse panel too. If so, you will need to reseal the window and fill the cracks under the cowl cover with spray foam to prevent it from leaking again. Also coat the electrical connections with dialectic grease to prevent any more electrical shorts.

Do you happen to have more than one Ford Key on your key ring. The theft system on this is a transponder system and it could get the wrong signal from a key to a different vehicle.

2001 Expedition abs light jus turned on and there's a noise that didnt stop after turning car off
This never happen before whats going on