Engine tick question

[Burla]

A follow up question, do any model years fare better or worse than others? Thanks again.

in 2016 the needle bearings got an upgrade, but that only helps the damage from needle bearing fails, only one of the issues with hemi tick. It does seem like the 5 gens do not suffer as much as 4th gens, even now that they get into that 70k mile mark which seems to be the time when many cams fail.

 

[quickster2]

I can say there is no way to win this argument, we will likely never know the truth. If it happens to you, luckily ram forum has some options other places don't.

Agree. No one knows the data set that may have been used to share any %. Percentages can be misleading if one does not understand the population or the subset sampled.

 

[HEMIMANN]

Don't put words in my mouth. You know from your background a 5 to 10% failure rate would be unacceptable at many levels for an engine with several million in service.

Here are your words:
"These 5 to 10% failure rate numbers are ludicrous. They would of pulled the engines with anything near 1%. Basic SPC and their World Class Manufacturing Quality Pillar would of highlighted any widespread issue."

You are calling the tech a liar.

 

[quickster2]

5 to 10% of what? Without data and stratification it is all hearsay. I'm not calling anyone a liar. Those are your words. I'm calling a failure rate of an engine (or virtually any high volume automotive part major assembly ) at the 5 to 10% level unreasonable (ludicrous). These failure rates would be unsustainable and the program based on NPV (which includes warranty) would not be approved nor renewed at those levels. The Life Cycle Cost analysis would not stand up to scrutiny at those levels. Do these engines have issues? Sure they do. Misfires, ticking sounds, MDS, exhaust manifold bolts, all seem to show up regularly. To state the obvious, I don't know the "Tech", we don't know the data set nor source, etc., etc. Have a nice day.

 

[HEMIMANN]

5 to 10% of what? Without data and stratification it is all hearsay. I'm not calling anyone a liar. Those are your words. I'm calling a failure rate of an engine (or virtually any high volume automotive part major assembly ) at the 5 to 10% level unreasonable (ludicrous). These failure rates would be unsustainable and the program based on NPV (which includes warranty) would not be approved nor renewed at those levels. The Life Cycle Cost analysis would not stand up to scrutiny at those levels. Do these engines have issues? Sure they do. Misfires, ticking sounds, MDS, exhaust manifold bolts, all seem to show up regularly. To state the obvious, I don't know the "Tech", we don't know the data set nor source, etc., etc. Have a nice day.

If you read my complete statement you'd know. I've decided l don't have enough time left in life to deal with gaslighting people. Bye.

 

[Marmay]

Would that be pretty easy to diagnose with just pulling off the valve covers?

Any update how your hemi performs, the tick is still there?

 

[dkelly3103]

Any update how your hemi performs, the tick is still there?

Yep it’s still there. Aside from a rear ended issue I just had its still running and driving great. No issues aside from the annoying tick.

 

[Marmay]

Yep it’s still there. Aside from a rear ended issue I just had its still running and driving great. No issues aside from the

Damn tick,nothing else left,just drive.

 

[dkelly3103]

Damn tick,nothing else left,just drive.

Yep that’s my thought at this point lol. At least will be easier to diagnose if something finally lets go.

 

[Marmay]

Yep that’s my thought at this point lol. At least will be easier to diagnose if something finally lets go.

I know how it feels, in my case the conventional oil was the last hope ,is quiet now,but no one knows for how long and when some problems come up,so in our case ,just keep driving,change the oil&filter in the right time and time will tell,good luck.

 

[dkelly3103]

Something that I just noticed today that I haven’t mentioned yet, with the truck at idle it has the very noticeable tick however if I bring the rpm’s up to even just 1500rpm the tick just about disappears. It’s not just the engine sound drowning it out, but you can hear the tick fade away the higher the engine speed. Not trying to bring a dead thread back alive just figured I’d post it since it’s somthing I just noticed.