Blown engine tear down - Pentastar 3.6L that bought the farm

[BearFootSam]

The Pentastar is a much better engine than we give it credit for sometimes. Every now and again, one let’s go and we attribute it to X, Y, Z. To me, this failure looks due to a mistake by an external action of someone who went inside it. The rest of the engine was in very good condition.

Rough numbers: Mopars’ made 11 million Pentastar since 2011. For some context, Ford has made ~40 million F series pick-ups since the beginning of human time, 1950ish. It is reasonable to consider the possibility that the Pentastar may be THE most durable and most reliable engine ever produced. It’s very likely that there are more vehicles powered by Pentastar on the road today, than by any other engine platform —perhaps by a margin of 50 or 100:1. The fact we don’t see more failures is a testament to how great the engines really are.

Parts commonality between the JT and the Wrangler (which there are far, far more of) and the ubiquity of the pentastar lead me to believe that parts will be available for these long into the future even if electrics take over. Good quality pick and pull motors should be easy to find for decades. There's something to be said for a plain vanilla engine.

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