I get 15.3 in my 2005.
That would be the 4.6 liter engine, which takes six quarts. * of 5W-20 according to the 2003 Mercury Mountaineer Owner Guide
According to the 2003 Mercury Mountaineer Owner Guide : ( DOT 3 brake fluid , meeting Ford specification ESA-M6C25-A )
( # 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
According to the 2003 Mercury Mountaineer Owner Guide : In the fuse panel under the drivers side of the dash : ( # 24 is a 15 amp fuse for the cigarette lighter and OBD II )
only when it begins to fail.
5.0 quarts 4.7L ( of 5W-30 for the 4.0 liter V6 ) 6.0 quarts 5.7L ( of 5W-20 for the 4.6 liter V8 ) In a 2003 Mercury Mountaineer
The fuel pump is inside the gas tank you have to drop the tank to get it out
The computer module in a 2003 Mercury Mountaineer is located behind the rear right panel in the truck space. The rear right seat belt panel must be removed and then the lower panel. The module is located beneath a green plug.
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 )
Look under the the plastic cover on the drive side by the breaks and gas pedals
1 - 3 - 7 - 2 - 6 - 5 - 4 - 8
it is a 29 mm hub nut socket
I am pretty sure that it is non existent, i have a 99 mountaineer and it is AWD and i am going to assume that yours has either FWD or AWD which means it has a transmission and a transfer case not a transaxle
look in the owners manual. However should be by the emergency brake you have to get on the floor and look up
Not by back passanger side tire. In front of the gas tank behind a heat shield.
Code P401 means:Exhaust gas recirculation (EGR) valve insufficient flow detected
Unhooking the battery for about 20 minutes should be more than enough to resed the computer.
Bank 1 is the passenger side of the engine in a Mercury Mountaineer ( V6 + V8 ) Sensor 2 is after the catalytic converter ( downstream )
The estimated mpg for city driving is 22. The estimated mpg for highway driving is 28. Combined mpg is 24.