Figured this was off topic but might be interesting to those with a Pentastar 3.6L or maybe the 3.2L that shares many of the same crappy Chrysler parts. So I have an Avenger of the 2011 vintage. Only about 115k on it and my daughter drives it around the Albany New York area. We've had it since 2012 and it's been a good ride until the past few weeks. I was fretting about getting the oil changed since I was pushing 8k but only use high end synths and Wix filters (cartridge). She pulls in to our halfway point in the Poconos and its tapping like a SOB... She informs me it started 4 days earlier. I of course thought the worse but it didn't sound like a rod knock. I changed the oil and found some metal in the filter but didn't look like aluminum or copper. Didn't think to check it with a magnet. Only taps when warm. Now we knew for a few years (maybe since 2014) about the select few Left heads from 2011 to early 2013 that were not cleaned properly post casting and very bad things happened when the casting sand circulated. Also many have had issues with valve seats in the Left head as well. Well this is a tale of rocker arms... Apparently the rocker arms in these things are basically crap. The needle bearings in the roller wear as does the center pin. I spent several hours this weekend tearing into the Avenger and found one of the cylinder number 5 intake rockers completely frozen and depressed enough that it was starting to groove the outer edges of the cam lobe. Now we probably drove this thing about 700 miles since the tapping began and I guess were very lucky. I swapped a Melling in and lucked out since it was far from the chains and I just loosened the caps for a bit of clearance. I checked the rest but they seemed very good and figure WHEN it does this again I'll just change all the rockers and lash adjusters at once. I don't have the cam locks to do all 24 valves as the cams would have to come off. My research shows this to be a very common issue with all Chrysler variants with the Pentastar. I also found that the replacement rockers fit the 3.2 liter we see in the KLs. I've seen examples of this issue all the way up to 2017 so far. So just a heads up in case you hear a troubling tapping coming from your 3.6 or 3.2 L engine someday. The bad rocker was on the right side buried close to the cowl so here's a pic of the left side showing how nice and clean the internals are with 115k mostly highway miles and oil changes on a 7.5-8.5k interval: Anyway just a heads up. I was looking seriously at a 2018 KL but now I probably won't be investing in another Chrysler product when the KJ and Avenger leave the fleet.