Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
They tell you 100k because they know the resistance in plugs will increase and burn up the coil packs before 100k miles and cost you 5x the plug replacement. I personally change plugs at 50k.
They tell you 100k because they know the resistance in plugs will increase and burn up the coil packs before 100k miles and cost you 5x the plug replacement. I personally change plugs at 50k.
Not a coil issue, it's a plug issue. As plugs deteriorate the coil has to work harder to produce the same spark as in higher amperage producing more heat wearing out the circuitry.
I don't believe it's a Ram thing. I've seen it in Ford GM and Chrysler. Mostly with high performance and trucks.
Hemi coils have never been a common problem. Certainly nothing like the coils found in the 5.4 Ford engines and their relatives - horrible things.
IIRC my manual says change the plugs every 100k or so. I may do them early. Haven't decided yet. Looking forward to removing the rear two coils on the drivers side...... Wonderful brake booster location.....