It's about time someone called out GM on this issue!!!!!

[Fireman591]

FINALLY!!!!!!! Hopefully during the discovery phase it will be shared how widespread this issue is with the 5.3 and 6.2 V8 engines. https://gmauthority.com/blog/2021/1...valve-lifter-lawsuit-claims-recall-is-needed/

 

[alpha_omega]

One would hope so, because from the sounds of that article the 5.3’s and 6.2’s that GM puts in their cars are the only ones affected.

 

[TrueAt1stLight]

 

[swathdiver]

FINALLY!!!!!!! Hopefully during the discovery phase it will be shared how widespread this issue is with the 5.3 and 6.2 V8 engines. https://gmauthority.com/blog/2021/1...valve-lifter-lawsuit-claims-recall-is-needed/

Well, that'll drive up the cost of the cars for everyone another grand or two and the plaintiff's will each get a check for $2 in ten years. Meanwhile, the lawyers will fund the purchase of planes, boats, fancy cars, campaign contributions and expensive college tuitions for their children for the next ten years.

 

[Eusibius2]

Innocent question here, I don't know enough about AFM or DFM. But one question that was asked in that article wasn't answered. Anyone here care to help me out, too?

"If you turned the AFM system off, would that help? "

[edit] Got to thinking about this a bit. Maybe not the best question, since the lifter failure would happen regardless if A/DFM is working or not. However, maybe a better question is ... If it's disabled, then would the lifter failure be accelerated since the lifters would be continually in motion? Or would the stopping/starting of the A/DFM put more wear on them, and create a failure sooner? I'm just curious here, nothing to gain or lose on my end.

 

[H1Chester]

Innocent question here, I don't know enough about AFM or DFM. But one question that was asked in that article wasn't answered. Anyone here care to help me out, too?

"If you turned the AFM system off, would that help? "

[edit] Got to thinking about this a bit. Maybe not the best question, since the lifter failure would happen regardless if A/DFM is working or not. However, maybe a better question is ... If it's disabled, then would the lifter failure be accelerated since the lifters would be continually in motion? Or would the stopping/starting of the A/DFM put more wear on them, and create a failure sooner? I'm just curious here, nothing to gain or lose on my end.

I can tell you that lifter problems and manifold bolt problems are common on the 4th Generation RAM trucks but after 60k miles or so, not straight from the factory. Sometimes known as the HEMI tick. The lifter problem in the RAMs is known to be linked to their AFM system (Called something else, DFM or something... by MOPAR. The system that shuts down 4 cylinders). On the RAM trucks one way to deactivate is to manually select the max gear on the steering wheel (Select 8+) which you would have to do every time you drive it. With the manual max gear selected the PCM keeps all 8 cylinders running. The other option in the RAM is to get a tune and there are options to turn it off. Not sure if that helps or not.

I was a long time GM fanboy but I've been a RAM owner and MOPAR fan since February 2016 and trading it in tomorrow. Love the truck, its fast and loud, reliable and lots of power, but... 3 car seats is tight.

 

[swathdiver]

Innocent question here, I don't know enough about AFM or DFM. But one question that was asked in that article wasn't answered. Anyone here care to help me out, too?

"If you turned the AFM system off, would that help? "

[edit] Got to thinking about this a bit. Maybe not the best question, since the lifter failure would happen regardless if A/DFM is working or not. However, maybe a better question is ... If it's disabled, then would the lifter failure be accelerated since the lifters would be continually in motion? Or would the stopping/starting of the A/DFM put more wear on them, and create a failure sooner? I'm just curious here, nothing to gain or lose on my end.

The lifters are always in motion when the engine is running, whether that cylinder is shut down or not. When a solenoid gets out of time, it causes the lifter to fail as it collapses at an inconvenient time.

 

[grouch]

Unfortunately, GM has used the end consumer as a final quality check for decades. When I was getting my mechanical training in the late 60's, GM was nearly as advanced as Chrysler in engineering and had better style. By the 1970's though, less reliability and you got things like the Vega. Chrysler used an aluminum block in the early 60's with no problems. GM brought out the 4 cylinder in the Vega and had steel rings in an aluminum bore. My sister bought one of the first Vegas. At 30,000 miles she traded it in as it was getting 100 miles to a quart of oil.

The Corvair of 1959 was a case in point. By the time it ended production in the late 60's, it was a decent car. The early suspension problems poisoned the name. Style has really taken a hit too. Remember the Aztec? It's what happens when you have bankers, not car people running car companies.

 

[2591tdj]

Well, that'll drive up the cost of the cars for everyone another grand or two and the plaintiff's will each get a check for $2 in ten years. Meanwhile, the lawyers will fund the purchase of planes, boats, fancy cars, campaign contributions and expensive college tuitions for their children for the next ten years.

Yep.

 

[Blackcar]

I hope that GM agrees to extend warranty of engines involved with lifter problem and owners that have had to pay for repairs. I don't believe this will add cost to vehicle any more than they have raised price (8 percent for 22's) and also make them look to engineer a better valve train. There is plenty of profit in these vehicles.

 

[Toomanyhobbies]

Unfortunately, GM has used the end consumer as a final quality check for decades. When I was getting my mechanical training in the late 60's, GM was nearly as advanced as Chrysler in engineering and had better style. By the 1970's though, less reliability and you got things like the Vega. Chrysler used an aluminum block in the early 60's with no problems. GM brought out the 4 cylinder in the Vega and had steel rings in an aluminum bore. My sister bought one of the first Vegas. At 30,000 miles she traded it in as it was getting 100 miles to a quart of oil.

The Corvair of 1959 was a case in point. By the time it ended production in the late 60's, it was a decent car. The early suspension problems poisoned the name. Style has really taken a hit too. Remember the Aztec? It's what happens when you have bankers, not car people running car companies.

Thanks for the laugh on this one. Not many great cars in the ‘70’s but GM invented electronic ignition/HEI which allowed the cars to run on unleaded while being choked out. Many mopars of this time hardly ran at all.

Does anyone know if this affects the LS3 in my 2016 ss? I assume no because the base components are older tech.

Thanks

 

[badtothe bone]

Unfortunately, GM has used the end consumer as a final quality check for decades. When I was getting my mechanical training in the late 60's, GM was nearly as advanced as Chrysler in engineering and had better style. By the 1970's though, less reliability and you got things like the Vega. Chrysler used an aluminum block in the early 60's with no problems. GM brought out the 4 cylinder in the Vega and had steel rings in an aluminum bore. My sister bought one of the first Vegas. At 30,000 miles she traded it in as it was getting 100 miles to a quart of oil.

The Corvair of 1959 was a case in point. By the time it ended production in the late 60's, it was a decent car. The early suspension problems poisoned the name. Style has really taken a hit too. Remember the Aztec? It's what happens when you have bankers, not car people running car companies.

You forget that the Vega used Teflon in the cylinders and when it over heated the Teflon fell off the cylinder wall.

If they took the pistons out, bored the cylinder, put bigger Pistons in it would run just fine.

Drag racers used that engine for years, just fill the water jacket with hard block and not run water around the cylinder.

Lordstown Ohio was plagued with problems because of the robotic welders, making the production line go too fast. Wrong size bolt's being used to put it together and people that hated their jobs.

They made the Citation there also.

GM didn't care about it's workers and it's workers did not care about GM.

Which is why the Avalanche was made in Silias Mexico, not Detroit or Oshawa Canada.

 

[mountie]

Are you all discussing the 5.3s from the 1st years of production? Is my '05 on the list?

I have had a tiny 'ticking sound' for a long time.... Not too much of a sound that you hear easily, but is noticed while I am at idle.
( My 'tick' almost sounds like the injectors? )

 

[Miami-Dade]

KEEP POLITICS OFF THIS THREAD IF YOU WANT IT TO REMAIN OPEN!

CONSIDER THIS A WARNING

 

[Blackcar]

Are you all discussing the 5.3s from the 1st years of production? Is my '05 on the list?

I have had a tiny 'ticking sound' for a long time.... Not too much of a sound that you hear easily, but is noticed while I am at idle.
( My 'tick' almost sounds like the injectors? )

I believe it is engines that have active fuel management (AFM). Knocks out four cylinders when eight are not required.

 

[mountie]

I believe it is engines that have active fuel management (AFM). Knocks out four cylinders when eight are not required.

Thank you!! Uh, so my 5.3 has a different valve train than an 'AFM' configured engine.....

 

[Blackcar]

Thank you!! Uh, so my 5.3 has a different valve train than an 'AFM' configured engine.....

Pretty sure it doesn't have AFM I have 2002 Yukon 5.3 it doesn't have it.

 

[grouch]

You forget that the Vega used Teflon in the cylinders and when it over heated the Teflon fell off the cylinder wall.

If they took the pistons out, bored the cylinder, put bigger Pistons in it would run just fine.

Drag racers used that engine for years, just fill the water jacket with hard block and not run water around the cylinder.

Lordstown Ohio was plagued with problems because of the robotic welders, making the production line go too fast. Wrong size bolt's being used to put it together and people that hated their jobs.

They made the Citation there also.

GM didn't care about it's workers and it's workers did not care about GM.

Which is why the Avalanche was made in Silias Mexico, not Detroit or Oshawa Canada.

In 1975, GM got around to adding steel sleeves to the 4 banger and renamed it the "Iron Duke". Chrysler did that with the 225 originally. The iron duke was used for decades afterward. Typical cost cutting like Ford did with the Pinto. A $1 grommet cost a bunch of lives.

 

[grouch]

Thanks for the laugh on this one. Not many great cars in the ‘70’s but GM invented electronic ignition/HEI which allowed the cars to run on unleaded while being choked out. Many mopars of this time hardly ran at all.

Does anyone know if this affects the LS3 in my 2016 ss? I assume no because the base components are older tech.

Thanks

Actually, the early electronic ignition GM used wasn't very good and was a high end option. The HEI came out in '75, I think. Possibly a '74. Chrysler offered their electronic ignition as an option in '72 and it was standard across the board in '73. Now, the Lean Burn they came out with in the late 70's was garbage. Every one of those I've had got converted to regular electronic.

 

[wjburken]

Are you all discussing the 5.3s from the 1st years of production? Is my '05 on the list?

I have had a tiny 'ticking sound' for a long time.... Not too much of a sound that you hear easily, but is noticed while I am at idle.
( My 'tick' almost sounds like the injectors? )

AFM started with the 2007 5.3’s. The 6.2’s started getting them in 2009, if I recall correctly.