You can check on eBay.
http://www.autozone.com/addVehicleId,2579302/initialAction,repairGuide/shopping/repairGuide.htm?pageId=0900c152801decc0 This is for a 2000 don't know if it's the same as a 99 but might help
how do you change the transmission pump in a 2002 mountaineer
there is a "wallet card" which has the code on it, if you do not have this card you will need to bring the car into a Mercury dealer and they will "plug it in" and retrieve the factory preset code.
In the front passenger footwell , behind the kick panel need picture of fuel rest
The best place to find a used Mercury Mountaineer is to check with the local garages and auction dealers in Syracuse, NY. They are bound to have the ideal vehicle for you.
www. motorcraft service . com ( no spaces ) Click on OWNER GUIDES , select year and model
go to the mercury garage compony & ask them why
wher do i find the code for door for a 2001
www.modifiedlife.com
You can find the five digit numbers for the keypad on a 2006 Mercury Mountaineer in the owners manual. You can also call the dealership and ask for a the code or take the vehicle in for a new code to be programmed.
if you go to any auto parts store they have repair manuals that show you how to take apart and put back together your specific vehicle, has photos. would find mountaineer in a ford explorer book. cost about $20, but are worth it.
type it in www.google.com