I need the door code to a 99 ford expedition I'm lock out of my car please help..

Can I use another ford expedition key to just unlock my door?

No, the keys are not interchangeable. Ford doesn't want a non-owner to be able to gain access to a vehicle.

No. But if you want a key to just unlock your door, without paying $75 for the "coded" key that starts your car, a local dealer or even Lowe's or Home Depot can make a copy for you that will unlock your door.

... but it will not start your car since the key that starts your car is probably "coded" so that it will not start unless the key head has the right code in it.

madewoman, I did not know that you asked the same question on two boards before I answered you earlier.

If you are locked out, then you need to call a locksmith to get you into the vehicle.

Alternatively, you can go to a local dealer with proof of ownership and they can cut you a new key.

... or if you have a AAA membership, they'll let you in for free or a very small charge.