Go to this page to download the full manual it contains a wiring diagram
https://www.flmowner.com/servlet/ContentServer?pagename=Owner/Page/IdentifyVehiclePage&level=vehicle&BackToLogin=Owner/Page/OwnerGuidePage&origref=http%3A//www.flmowner.com/servlet/ContentServer%3Fpagename%3DOwner/Page/RecallsPage&searchid=426441|32056716|210358335&gclid=CN-G07H9z54CFSUsawodg32mrA
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 : In the power distribution box ( which is " live " ) located in the engine compartment on the drivers side : ( # 41 is a 15 amp mini fuse for the HEGO , VMV , CMS , PTEC ) HEGO stands for Heated Exhaust Gas Oxygen ( sensor ) You can view the 2003 Mercury Mountaineer owners manual online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides ( the fuses and relays section starts on page 166 and the power distribution box diagram is on page 171 )
On a 2003 Mercury Mountaineer , 4.6 litre V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
www.modifiedlife.com
only when it begins to fail.
Yes.
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