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Where are the spark plugs for a 2003 Mercury Mountaineer located?
Wiki User
∙ 13y ago
I just replaced the six spark plugs on my 2003 Mercury Mountaineer 4.6L V6 SOHC. with 95K miles on the original plugs. There are 6 plugs in total (3 on each side of the engine). The ones on the driver side are easily accessible. Just twist & pull off the plug wire (some were on real tight and required considerable pull),and you will see the spark plug.
The 3 on the passenger side could only be accessed by removing the whatyamacall it (the big black air duct that goes between the air filter and the throttle body).
I purchased the 6 OEM spark plugs (Motorcraft Platinum) from Autozone for like $24 for all 6.
The original plugs were gapped to like 60-70mm. The specs call for the plugs to be gapped between 52-56 mm and this is what I used. I didn't bother to change the plug wires as they seemed fine to me.
Relatively easy job. Took me 90 minutes to do. I am novice mind you. I am not sure what vehicle the poster below was referring to. The coil packs were located in the front of the engine, not on top of the spark plugs.
>in the usual place, you will not recognize them as you cant see them as they >have a coil pack on top of each one. coil is about 1 1/2" round thing with a >7mm >bolt holding it on. take the bolt out and pull off the coil pack and you >can get to the plugs
Wiki User
∙ 13y ago
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