[Bumbleboy92]

Originally Posted by NovaSS4spdFan

That's unfortunate- just 10K miles and a lifter issue.

I'm at 23k miles now, it's why I'm not doing anything to the car until my 6-year/100k mile CPO Powertrain warranty is up

[CHASLT1]

Originally Posted by arpad_m

The basic underlying problem is that the older fluid variants in the A8 are more susceptible to absorbing moisture and gradually surrender their friction properties, which leads to rapid slip-grab and the breakdown of the friction material on the torque converter clutch. I've seen a few graphs depicting the fluid deterioration problem with old fluids and how the 2019 fluid finally resolved the issue.

From that information my conjecture is the issue impacts cars used in areas with higher humidity much more severely than drier regions, which would explain why only a smaller but relevant subset of A8 units degrade to the point where the shudder becomes tangible.

I live in about the worst humid place one could dream of right on the gulf. Maybe my trans did have a triple flush but nothing shows on the service history.

[keep_hope_alive]

I posted descriptions of the AFM system in detail in this thread: https://www.camaro6.com/forums/showthread.php?t=617893


There is not a consensus that having a manual or having a range module saves you from lifter failures.

Wherever you go online (this forum, Reddit, FB, etc) you will find folks stating that lifter failures occur due to the lifter design and have occurred on manuals and AT with Range modules installed. I've looked for more conclusive information on details surrounding failures (oil type used, mileage, was it downshifting, was it transitioning from V4-V8, etc.) but haven't seen much info.

[easttxss]

136k miles here. No issues

[plus1zero]

AFM/DFM have caused issues since 2008. It's for emissions. If it weren't for that, these engines would continue to be as rock solid as the ones still running like a top today. You cannot kill a cateye 5.3 especially, they'll outlive the vehicle themselves.

[RideWithDanger]

Originally Posted by keep_hope_alive

I posted descriptions of the AFM system in detail in this thread: https://www.camaro6.com/forums/showthread.php?t=617893


There is not a consensus that having a manual or having a range module saves you from lifter failures.

Wherever you go online (this forum, Reddit, FB, etc) you will find folks stating that lifter failures occur due to the lifter design and have occurred on manuals and AT with Range modules installed. I've looked for more conclusive information on details surrounding failures (oil type used, mileage, was it downshifting, was it transitioning from V4-V8, etc.) but haven't seen much info.

This ^

The problem is the lifters, not the AFM system. From everything I read on it, the AFM system can cause premature failure, but is certainly not the only cause. Don't think that because you have a manual or a range device that you are now immune to having lifter failure.

[LT1Zob]

Originally Posted by olrocker

4 easy steps to fix this:

Step 1: Remove factory cam and lifter junk with VCM

Step 2: Install new cam and lifter set sans VCM

Step 3: Throw factory cam and lifter set into trash

Step 4: Happy motoring

This is the only guaranteed solution. Everything else is hopes and dreams.

My 19 Z06 runs out of powertrain warranty later this year. It’s headed to Katech for heads, lifters etc.
My 16 Z51 was a 7 speed manual. Don’t kid yourself, not an auto-only issue. I picked up that car with 3 miles on the clock. That car had never been in V4 mode, ever. At 7,200 miles, bank 7 lifters failed. Scored the cam. GM fixed it under warranty, but dumping the factory garbage is the only right answer

[m6-lt1]

Originally Posted by keep_hope_alive

I posted descriptions of the AFM system in detail in this thread: https://www.camaro6.com/forums/showthread.php?t=617893


There is not a consensus that having a manual or having a range module saves you from lifter failures.

Wherever you go online (this forum, Reddit, FB, etc) you will find folks stating that lifter failures occur due to the lifter design and have occurred on manuals and AT with Range modules installed. I've looked for more conclusive information on details surrounding failures (oil type used, mileage, was it downshifting, was it transitioning from V4-V8, etc.) but haven't seen much info.

I would pay money to see this data specifically when it comes to oil change intervals. It's significantly more prevalent on trucks and SUV's and my theory is the typical SUV driver is not as anal about keeping up with maintenance.

[keep_hope_alive]

Originally Posted by m6-lt1

I would pay money to see this data specifically when it comes to oil change intervals. It's significantly more prevalent on trucks and SUV's and my theory is the typical SUV driver is not as anal about keeping up with maintenance.

agreed.

Another factor is 5W-30 vs 0W-40 Supercar. The engineers made that change for a reason and it wasn't saving money. I've seen discussion where the engineers stated they always wanted it but it took years to get through paperwork and legal. Folks with Camaros still argue that oil is oil and the Engineer's don't know what they are talking about, it's all about money, etc. I get that a $120-$150 oil change every 5,000 miles isn't cheap, but it's cheaper than owning an exotic car.

[Bumbleboy92]

Originally Posted by keep_hope_alive

agreed.

Another factor is 5W-30 vs 0W-40 Supercar. The engineers made that change for a reason and it wasn't saving money. I've seen discussion where the engineers stated they always wanted it but it took years to get through paperwork and legal. Folks with Camaros still argue that oil is oil and the Engineer's don't know what they are talking about, it's all about money, etc. I get that a $120-$150 oil change every 5,000 miles isn't cheap, but it's cheaper than owning an exotic car.

All my cars do 5k oil changes, my 1LE was a CPO at ~1,500 miles. I got service records from the dealership previous owner went to. Oil changes done at:

• 4,400 miles
• 8,350 miles
• 10,500 miles (lifter failure)

Same oil & filter part number for 0w-40 used all times

[olrocker]

It would have been hilarious if someone brought their own cam/lifter kit plus all their tools and Jack the day they picked up their new Camaro then change the kit out right there in the parking lot before driving it home.

The thought actually crossed my mind.

[L78toLT1]

Originally Posted by olrocker

It would have been hilarious if someone brought their own cam/lifter kit plus all their tools and Jack the day they picked up their new Camaro then change the kit out right there in the parking lot before driving it home.

The thought actually crossed my mind.

I've swapped cams in these cars, and believe you me, you'd be camped out on that dealers lot quite a while replacing the cam and associated hardware in a parking lot, on jacks.
For what it's worth, even the afm cam and lifters, by and large, are more reliable than any .600 + lift aftermarket setup. There is maintenance associated with those, which is fine if you're aware and prepared to deal with it. I'll guarantee you the aftermarket setup is not going to go 150 - 200k miles without attention. The oem parts usually will.

[LT1Zob]

Originally Posted by keep_hope_alive

agreed.

Another factor is 5W-30 vs 0W-40 Supercar. The engineers made that change for a reason and it wasn't saving money. I've seen discussion where the engineers stated they always wanted it but it took years to get through paperwork and legal. Folks with Camaros still argue that oil is oil and the Engineer's don't know what they are talking about, it's all about money, etc. I get that a $120-$150 oil change every 5,000 miles isn't cheap, but it's cheaper than owning an exotic car.

Originally Posted by Bumbleboy92

All my cars do 5k oil changes, my 1LE was a CPO at ~1,500 miles. I got service records from the dealership previous owner went to. Oil changes done at:

• 4,400 miles
• 8,350 miles
• 10,500 miles (lifter failure)

Same oil & filter part number for 0w-40 used all times

I didn't want to be "that guy", argumentative and a pain in the ass, but I know LT1s and LT4s very well from the Corvette side. Beginning in 2018, gm recommended 0 40 ESP (then Supercar) in all LT1s, LT4s and LT5s. Didn't make much of a difference in the afm lifter failures. And I'm not even going to go into the LT2 and LT6 issues.

The failure rates are nowhere near as bad as when GM first kicked off this DOD bullshit, but again, the only real remedy is removing the cancer altogether.

[Bumbleboy92]

Originally Posted by LT1Zob

I didn't want to be "that guy", argumentative and a pain in the ass, but I know LT1s and LT4s very well from the Corvette side. Beginning in 2018, gm recommended 0 40 ESP (then Supercar) in all LT1s, LT4s and LT5s. Didn't make much of a difference in the afm lifter failures. And I'm not even going to go into the LT2 and LT6 issues.

The failure rates are nowhere near as bad as when GM first kicked off this DOD bullshit, but again, the only real remedy is removing the cancer altogether.

I read a post on the Eco mode in the Corvette being universally hated/shamed. Does AFM only turn on in Eco on the vette or similar to the Camaro where it’s always running AFM?