Using 8mm socket or wrench disconnect negative battery terminal first and then positive terminal. Then unbolt battery hold down located on side of battery near engine. Pull off plastic battery cover then remove battery. Clean battery terminals with wire brush. If bolts are corroded replace them. Replace battery, battery cover and hold down. Then put positive terminal on and then negative.
Disconnect the negative battery cable and then remove the positive cableRemove the battery heat shieldRemove the battery hold-down clamp boltLift out battery
According to the 2003 Mercury Mountaineer Owner Guide : Both the 4.0 liter SOHC , V6 and the 4.6 liter V8 engines have the Motorcraft BXT-65-650 battery ( that's BCI group size 65 , 650 cold cranking amps )
Unhooking the battery for about 20 minutes should be more than enough to resed the computer.
According to the 2003 Mercury Mountaineer Owner Guide : ( DOT 3 brake fluid , meeting Ford specification ESA-M6C25-A )
That would be the 4.6 liter engine, which takes six quarts. * of 5W-20 according to the 2003 Mercury Mountaineer Owner Guide
I get 15.3 in my 2005.
4
( # 24 ) is a blue color 15 amp fuse for the cigarette lighter and OBD II in a 2003 Mercury Mountaineer ( under the instrument panel )
On a 2003 Mercury Mountaineer , 4.6 litre V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
# Disconnect negative battery cable # Raise and support the truck # Remove the protective cover from the starter motor solenoid terminals # Disconnect the wiring from the terminals on the starter motor solenoid # Remove the starter mounting bolts and detach the starter from the engine
only when it begins to fail.
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