My 2014 300 with the 3.6L suffered a cracked oil filter housing at about 31,000 miles. It was replaced under warranty. I first noticed it one evening in our garage - smelled like a burning belt. After a couple more times, I realized it was burning oil. They were notorious for doing this - the plastic assembly would crack & allow for oil to leak & start cooking on the top of the engine. So far, this has not happened on our 2016 300, but on cold starts, there is a sound like old solid lifter engines had from the valvetrain. I've had 2 different dealers look at this & both claim the rockers are good, even though the 3.6's are notorious for this problem. I'm almost out of drivetrain warranty, I'm thinking of selling it.
You're thinking of selling it because its going to run out of warranty? If its been a good vehicle to you and you're worried the rockers are going to fail soon, buy a top end kit for it. I think the rockers are $5 each, and you can easily check them in place for the most part. [/quote]
I've watched videos on the procedure for replacing these - I don't even want to try this. Mainly though, I bought my wife a certified 2018 Grand Cherokee 2 summers ago & we absolutely love it. I'm kind of wanting one of them now for my driver. I can probably sell it for almost what I paid for it - bought it almost 4 years ago.
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