[Garc]

All manufacturers of vehicles have problems, significant ones at that Ms. Doodle. You are unfortunately just a part of an extremely low percentage of failures, there have been a million+ of Hemi 5.7s sold since 2009. If there are a few hundred camshafts repaired due to roller needle-bearing seizures, that's still well under 1 percent failure rate.

 

[Garc]

It’s 2020, the first thing any consumer is going to do after handing over $3-8k for a cam replacement or engine swap is complain on YouTube/forums/etc... look at the difference amazon has made for marketing.

FCA is fully aware of the overall number, which in the MILLIONS of 5.7s sold between several different vehicle models is minute. 1% is in the tens of thousands and a complete overestimate, 99.7% is 3 sigma which used to be a quality standard goal. They made a lifter supplier change in 2016 and haven’t looked back since.

 

[Garc]

The manufacturing of Gen3 Hemi lifters over vehicles sold would be their most accurate data point. Nobody(In their right mind) should replace one or only the failed lifters with a new camshaft, going to be a set of 16 per case.

Cam production has too many hands in the cookie jar to be reliable. 6.2 Hellcats and 6.4 Hemis also suffer this same failure, just at a much lower awareness level due to production quantities in comparison.

These are just opinions from close observation. My proactive approach is never letting the vehicle idle for long periods especially with higher mileage oil as well as a custom tune to bump idle oil pressure and RPM.

 

[Garc]

I change my filter every 15k miles, usually every other fluid swap. This one sample was short since I had just put longtubes on and it was winter cold dense air. I go WOT at least a few times every day on my 80 mile work commute. $16/gallon oil

 

[Garc]

Anyone not wanting to invest by being proactive with a custom tune is just asking for failure.

Bumping idle oil pressure to 48-50psi and actually giving you the 400 hp this engine makes through all 8 gears.

 

[Garc]

Wow 300+, good luck with that out-of-warranty lawsuit for something not safety related.

 

[Garc]

How long were you driving around with the misfire code prior? 😂

Claiming ignorance might work with the new Dem administration. 👍🏼

 

[Garc]

You may have a case with receipts of oil change intervals including documented idle hours, most failures are occurring from high idle time along with what becomes extended oil change intervals. Every hour of idle time translates to ~30 miles driving that most don’t account for, especially with service vehicles.

 

[Garc]

There’s nothing wrong with idling as long as you’re using a decent synthetic or changing early. Talk to any mechanic that deals with service (police/construction) 5.7 engines, the cases of lifter failure “were” through the roof.

Living by the 10k mile EVIC interval is a recipe for disaster. Low/dirty oil pressure at idle might as well be a ticking time bomb with the way these race engines were designed.

 

[Garc]

Low ratio gears on the trucks and cars don’t help if you’re on the highway cruising for long periods under 1800 RPMs either, especially with 8 speeds and the overdrives.

20 weight oil also becomes a factor when it’s hot, there are compound variables unfortunately for this failure mode. High molybdenum quality synthetic has shown great analysis reports on mine, but it’s tuned(~50psi idle pressure/180 degree stat) and I’m constantly turning higher RPMs cruising with 3.92 gears for over 110k miles.

80 mile highway commute daily.

 

[Garc]

Yep, poor tolerance stack-up sigma quality from China lifters during the 2008-2016 administration forcing FCA to pinch pennies.

My statements are to be proactive in prolonging the life of 2009-2017 Hemi lifters/camshafts. You can cross your fingers or take advice, apologies if the bug already bit you.

 

[Garc]

Welcome, glad you joined and would like to finally learn and maintain your vehicle now. *Please sign in at the door, the 3 dots on the top right of your post allow you to edit.

 

[Garc]

So you came up with between 0.18-0.8%

Like I said years ago earlier, this has less than 1% failure rate for a non-safety related component and will certainly not get any attention outside of warranty.

 

[Garc]

I picked up mine yesterday and painfully wrote the check.
He showed me the parts. The roller on the number five intake lifter was completely seized and wearing a groove in the camshaft. Kind of defeats the purpose of a roller cam. Also the tensioner that the timing chain rides on to take up any slack from the variable valve timing was smoked. This is why I like engines with pushrods in lieu of overhead cams and complicated valve trains like my Audi A6 that also failed. I guess I was wrong!

That's great you signed up to complain, care to give us actual data points?

Year/Vehicle/Mileage/Oil Used and interval length/Idle time

 

[Garc]

15 year old 3rd gens are usually happy to be in one piece from corrosion

 

[Garc]

Go back to corporate, if they okayed a maintenance "tune up" for poor fuel mileage then they'll approve the initial root cause in replacement of lifters/camshaft.

 

[Garc]

Good luck against Pennzoil in court trying to fight a lubrication problem against FCA's budget camshaft manufacturing. I had 30k miles worth of perfect oil analysis when my surface hardening started flaking, just means your oil filter was doing its job collecting larger micron debris.

 

[Garc]

This will forever be a new user stress relieving thread, so don't kick dead horses.