4 cylinder engine - ( .050 inch ) V6 engine - ( .054 inch )
We found the the valve cover had a bad gasket. We had to replace ours and that solved that problem.
I was looking at the 1998 Mercury Villager Owner Guide ( and one of the Ford websites ) and they both show the spark plug gap as ( .034 inch )
Both the Owner Guide and fordparts.com show ( .034 inch ) spark plug gap for a 1998 Mercury Villager 3.0 liter V6 engine
You could change the spark plugs, sprak plug wires, computer chip.
.030 gap
Each spark plug has a coil on the top. Just remove the coil.
The 1991 Mercury Marquis spark plug gap is .034. Most spark plugs will be pre-gapped by the spark plug manufacturer.
The distributor in a Mercury Villager is the round thing at the front of the engine with the six spark plug wires attached to it.
Bottom of the radiator.
1.3 to 1.4 mm ( .052 to .056 inch )
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is 54 gap for a spark plug mercury mountanier 2002 4.6