Though it seems to be widely know that timing belts have to be replaced as a preventive measure, every 60,000 mi or thereabouts. I'm still not sure if my timing *chain* needs attention or not, despite researching a lot. (Sorry If I've missed something obvious) I have read that 2.6L engine is an "interference" design so the potential damage is real.
So, for a truck with 172,000 mi and still running great, no apparent problems visible from inside the valve cover, but of unknown history . . . . am living on borrowed time? or should I be good to go? or is the truth somewhere in between?
And if the chain & guides etc. do need replaced, I kinda think with that big an operation I should also be pulling the head off at the same time and checking everything there - MCA delete, check for cracks, check the valves, etc . . . . .
Reliability is a big deal to me as we have plans for fully loaded cross state trips with this machine, and would hate to get into a mess that I should have avoided.
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