The gap on the plugs might not be gapped properly.
The spark plugs?æon a 1999 Dodge Durango are at the side of the engine. Make sure that the engine is cool before accessing the spark plugs.
16 Plugs, each coil 2 plugs
40
4.7L has 8 spark plugs. 5.7L has 16 spark plugs.
They are on both sides and the back of the block.
8
88
champion plugs every 30 thousand miles
Only if there's something wrong with your old spark plugs.
16mm or 5/8 inch
show me a picture of the spark plug wires on a durango from the spark plugs to the cap
As the plugs wear, the gap increases and the spark fades, resulting it poor ignition eventually. This simply means reduced gas mileage. I have 60000 miles on my stock plugs with no reduction in gas mileage, but I plan on changing them real soon...