firewall
4 - 8
3 - 7
2 - 6
1 - 5
front
The number 1 spark plug is left side.If you were looking at the engine from the front to the back and is the first one on the left.
On a 2003 Mercury Mountaineer , 4.6 litre V8 engine : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
Check the Vehicle Emissions Control Information ( VECI ) decal located in the front of the engine compartment ( it will show what type of spark plugs to use and the spark plug gap )
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 )
I just lifted this part number off of the rear differential on my 2003 Mercury Mountaineer.
The spark plug gap for a 2003 Mercury 125hp outboard motor is .040"
only when it begins to fail.
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