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Listened to your video again. I believe I can actually hear two noises. A lighter tap similar to valve train noise and a heavier knock similar to piston, wrist pin or rod bearing noise.

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Discussion Starter #62
I'll take it in today and hopefully this is the last time for this issue. I did listen today, opened hood and engine cover off and it's definitely ticks on the top left side of the engine...but they've changed the left side lifters 3 times...and it still ticks and comes from the left side.. Cannot wait for this to be over!!!
 

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Any results???
If not, I still recommend going to an engine specialist because they would have better internal engine diagnostic skills, did anyone disable cylinders (one plug at a time) to see if the noise changes in response, the camshaft turns half crank speed, so a cam speed noise should be half as frequent as crank speed noises, after all this repetitive parts swapping, has anyone done compression checks?, a smoke test, a leak-down %?, a measurement of total valve lift at the retainer, how about a check for valve seal at the seat and down the guide & stem? how does it sound under a load?, while coasting?, ... a good engine guy should be able to determine the source of a troubling noise even before teardown. Some noises can be hard to differentiate even to a seasoned engine machinist.
Remember that some problems can be attributed to driver abuse, and others are due to premature parts failure. If someone is going to foot the bill for the total cost of repairs, it reasonable to know to a high degree of certainty exactly what has failed and for what reason.
Note: as an engine builder, I would not pay for replacing an engine if three years after trouble-free service life, the owner changed his/her own oil, and forgot to pour new oil back into the crankcase, and drove it until it knocked itself nearly to death. I am NOT suggesting you have done any such thing, but still a clear understanding of what went wrong will make it easier for the responsible party to pay for the repairs.
 

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Discussion Starter #64
Hello M-D-Z. The vehicle is at the dealership where they would attempt the repair with the help of Mopar engineers, I guess. As I stated above, I do not change the oil because I have no knowledge or time for it, so the same dealership is changing the oil & filter every 3k miles, even though the sticker for next change says 5k, I have purchased from them the oil & filter packages, usually 3 for $100 and I always go to them, so if they put bad oil in it, I won't know, but I always check to see if I have enough and it is.
So next week I'll find out what it was and hopefully for good. Everyone is developing "ticking fatigue" from this vehicle.
 

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Discussion Starter #65
Have you EVER heard of something like this!!!!

Hello everybody! So the saga continues. ..so the following repairs have been done to the vehicle:

Dealership A: replaced left bank lifters. - Still ticking!
Dealership B: replaced left bank lifters. Replaced right bank lifters. Replaced camshaft. - Still ticking! Dealership B : replaced again left bank lifters. Still ticking!
Back to dealership A : replaced left bank lifters. Still ticking!

So after replacing 4...yes! 4 times the left bank lifters! Camshaft & right bank lifters..it's still ticking?

Seriously!!!

I mean: Have you EVER heard of something like this!!!

 

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Since no one seems to have mentioned it yet, I think I will. Have you all noticed the absence of the usual Dodge Cares chiming in to offer their "additional layer of assistance?" Maybe, the thread being 4 pages deep is beyond their pay grade?

I would hope that by this stage, FCA would WANT this engine back as is to conduct a MOtopsy, and figure out what the hell is wrong. We all know it might run 200K this way, but for what a Durango so equipped costs these days, it damn well needs to be right!
The fact that it has had 4 sets of lifters, and a cam, with no improvement is not encouraging. IMO, time for a new engine, or a nice extended PT warranty on FCA's dime. Say, 10 yrs/150K.

Don
 

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"Insanity is doing the same thing over and over again and expecting different results." — not Albert Einstein
 

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I guess we can rule out the lifters!
Has anyone mentioned it could be from the bottom end?
Has any of the dealerships used a stethoscope to try and pinpoint where the noise is coming from?
 

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Discussion Starter #69
During repairs, I hope they thought of it..or the Mopar warranty should've told them that. We cannot be the only ones with those ideas, right?
 

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My theory the original issue was the was the lifter roller seized grinded up the cam lobe . The grinded up metal particles floated around then contaminated the other lifters and continue to wreak havoc let the motor go until it blows you have a ton of documentation. Grinded up metal mixed with oil introduced to things with small bearings and tight tolerances not a good combo. Were not talking about engine breakin type of metals a cam shaft is really hard.


that roller gets loose as well what ever is in there gets mashed up and spit out
 

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During repairs, I hope they thought of it..or the Mopar warranty should've told them that. We cannot be the only ones with those ideas, right?
So sorry to hear about this headache. Quick question, any dealer check your water pump? I have a 2016 DD R/T with 85K miles on it. Last year I noticed a very similar sound. A few months after the sound appeared I took it in to be serviced. That's when I was told the water pump was "coming apart". Once a new pump was installed the sound went away. Just my two cents. Good luck!
 

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Discussion Starter #73
Nobody mentioned about water pump. But this engine was totally opened when they replaced both sides of lifters and the camshaft..they should've caught it, no?
Plus another 3 times when they changed the left bank lifters.
I would think and hope they checked other things than lifters.
 

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One would think if it was the pump it would've been discovered. I read through this whole thread and it sounds as though you've had a lot of eyes and hands looking at the engine. Outside the box...maybe it's not the engine? IDK, I do know it;s frustrating though.
 

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Knowing the checkered history of the '13-'17 5.7L water pumps, it's a good mention. My thinking though, is that the timing cover had to come off for the new cam to go in, so you would THINK if the tech had it in his hand, and it was bad, they would have changed it.


Don
 
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After all the lifters being replaced up to 4 times and the ticking noise still persists, I'm thinking it could be a lifter bore or two that is out of round and rocking in the holes. I agree with Don Fox, FCA should take that engine and thoroughly go through it.
 
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