For a Ford 4.0 liter OHV , V6 engine in a 2000 Ford Explorer , Ford Ranger :
firewall
3 - 6
2 - 5
1 - 4
front of vehicle
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The spark plug firing order is ( 1 - 4 - 2 - 5 - 3 - 6 )
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The coil pack towers are numbered :
coil----3 - 4
pack--2 - 6
plug---1 - 5
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