Is your battery getting weak ?
To replace the battery cables on a 1999 Mercury Mountaineer, loosen the connectors at the terminals. After this, remove the other end of the cables and install new ones.
Disconnect the negative side of the battery
On a 1997 Mercury Mountaineer : The " CHECK ENGINE " warning light is just to the left of the battery voltage gauge
had to replace the battery in my 2002 Mercury Mountaineer but now the theft light is blinking, it is cranking up. How can I stop it?
I BELIEVE the horn is mounted below the battery tray
I believe it is mounted below the battery tray in the engine compartment
Disconnect the negative battery cable and then remove the positive cableRemove the battery heat shieldRemove the battery hold-down clamp boltLift out battery
Try disconecting the battery for 5 min.s and reconecting.
On a 1997 Mercury Mountaineer : It came from the factory with either the Motorcraft BXT-65-650 battery ( or the optional Motorcraft BXT-65-850 battery ) ( that's BCI group size 65 , 650 or 850 cold cranking amps )
i reconnected my battery of mountaineer 2005 and radio is asking for code, i wasnt able to find it any where...how to solve this issue
One possible cause is a defective alternator, Have the charging system checked.