Soccer moms and dads just drive the thing either till it suddenly breaks down or explodes. Caravan PCMs are very good at adjusting fuel and spark to the point that you don't notice a misfire. But it is difficult to get the PCM to notice a problem as well. Our previous engine had almost no compression and was probably running on 2 or 3 cylinders with no CEL, knocking to holy ****. Van PCM assumed all was good. It was only worried about disabling the entire airbag system and putting lives at risk because the steering wheel clockspring failed.I shopped a '06 T&C w/176K mi a couple of days ago.
Two of the front plugs were finger tight. I removed and inspected one (w/my fingers) and it looked exactly like the one in the pic but insulator was so dirty I couldn't read the brand.
Probably original plugs.
Van ran fine! Pretty amazing when you think about it!
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