I wanted to reply to this post to give the OP and others a heads up, in regards to the “rattle” from said Pentastar. There is an issue from the factory with the roller rockers and lifters, but primarily rockers. The roller bearing is crap, which will tick all the time or under load, which later fails causing the lifter to get damaged and eventually the camshafts destroyed. Thus, the roller will not function correctly causing the valve to close prematurely. Under a load, if it’s bad, you will feel like you have a slight misfire. This seems to affect cylinders 1/3/5 first for some unknown reason. We had a 2016 v6 Limited. Cylinder 5 was the worst and exhaust roller rocker bearing rotated like an egg.
It’s probably lifter tap that you hear, which is the first sign. For the record, our Durango was maintained at the dealer from day one.
From what i was told at the dealer, and learned via the web, Dodge is now pushing all twelve exhaust lifters/rockers be changed. Previously they would only cover the rocker/lifter combo that was ticking. Which apparently are better quality parts. Lucky for us, we were at 70k miles and no warranty, which is exactly what Dodge would want. $1500 later it was fixed. They cut us a break because we only service at the dealer. However, the opposite cylinder head could be next. It was the last straw for problems with the Durango and we picked up our Honda Pilot last week. Electrical problems and engine issues, we’re done before sinking more into this leech. Granted, 90% of all our issues were under powertrain warranty, this was something we knew would get worse from here. Worse case scenario, the heads would eat themselves and goodbye engine.
There are more threads for this issue with Jeep owners, referred to as the Jeep Tick. That’s how I found the answer, because the Durango forums do not have the owner participation like the Jeep forums. It’s a known problem, they don’t want to fix it and will say “we can’t replicate it”. Thank god our camshaft wasn’t destroyed. We basically ate $1500 just to trade the bastard in. Please note i did love the Durango. The way it looks, interior space, amenities, etc. But the extra bling can’t make up for the inevitable engine failure.
We are currently out of state on vacation and my mother wanted to take her Durango. While i was driving through the mountains, i felt the “misfire” feeling and her husband looked at me...”please tell me that’s not how yours started”. Yes, it was. They have 80k on their 2016 v6 Limited.
Ironic how the first generation Pentastar has exhaust valve seat failures, requiring cylinder head replacement. Now they are seeing exhaust rocker/lifter failure.
