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What city are you in Texas? The part was $800, i don't know how much it was total, maybe it was $1700 or 2k or $1500. Doesn't matter, it was just $7k of repairs including the lifter + the alternator maybe some other thing in the same month. GM quality i guess.

yes you have to remove the components, i am saying ALL of the AFM motors have the same design issue, disabling it will help a lot, but removal is the best.

It's not a small minority of motors that fail, it's certainly not 6 sigma.
I live in Whitney, TX, but the place that does my work when i choose not to is Richard Karr Motors in Waco. Really great people.

They dont hesitate to work on both my Trans Ams if need be, and something I can't or won't do, and they'll work on my wife's Sky as well
 
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I live in Whitney, TX, but the place that does my work when i choose not to is Richard Karr Motors in Waco. Really great people.

They dont hesitate to work on both my Trans Ams if need be, and something I can't or won't do, and they'll work on my wife's Sky as well
Ah ok, i live near Austin metro area and i think their hourly rate is more like 175 here. I looked for changing the alternator on some site here, and they were showing $850 including labor, but i am sure dealer has huge markups in general. We always get extended warranties (which is where they would rip us off the most :)) and on the 2014 it was definitely worth every penny as so many items fail on that truck (starter, early timing belt crack, etc.)
 
............Dirty old oil and oil failing to meet GMs standards is the mortal enemy of the AFM system. Change the oil every 5K miles or so and it ought to last a long time.
Yeah, this ^^^^^^^ Super clean and fresh oil is the key IMHO. Hopefully the engine has been well maintained so far.
 
Timing belt?
yeah they found a crack around 56k miles and replaced it under extended warranty, so that warranty was definitely worth it among other things (i.e. starter craps out at 40k, some tranny issue, steering column locks up completely so i can't start, etc.) The 2014 was made in Mexico, so i wasn't surprised i guess. Best extended warranty ever spent.
 
yeah they found a crack around 56k miles and replaced it under extended warranty
Oh boy... If the dealer sold you a new timing belt for your truck (albeit under warranty), I can definitely see them selling you a $2K alternator job, too. 🤦‍♂️
 
First, they're not extended warranties. They're "service plans." Huge difference.
What does "made in Mexico" have to do with it? My 15 was made in Mexico, and the only things that have been done to it besides regular obsessive maintenance was the air pump and the condenser. Both under WARRANTY.

And my timing belt is still good at 177K.

That water pump for a BMW is easy to understand. Dieter and Franz, the mechanics in the BMW service department know they have you by the short hairs when you've purchased a foreign luxury car. I used to kid my brother about that 20 years ago when he bought a 3 series Mercedes and it cost $175 for an oil change. Convinced him to get rid if it, then the moron went out and bought a Prius. We've always had a strained relationship, but that was the icing on the cake.
 
yeah they found a crack around 56k miles and replaced it under extended warranty, so that warranty was definitely worth it among other things (i.e. starter craps out at 40k, some tranny issue, steering column locks up completely so i can't start, etc.) The 2014 was made in Mexico, so i wasn't surprised i guess. Best extended warranty ever spent.
Just what engine do you have in your Silverado? :rolleyes:
 
I recently bought a 2014 Sierra SLT with 79,000 miles on it. It’s a beautiful truck, well maintained and in excellent condition.
When I was looking for a truck, I found a whole lot of 5.3 & 4.8 Ecotecs with well over 100,000 miles, many with over 150,000 and one with 200,000+ miles. Most seemed decent but I bought the one that I thought was the best for me.
However, upon reading the posts on this forum, it almost sounds like every time I start it up I have to worry about the AFM lifters taking out the cam. I’m thinking I’m on borrowed time waiting for the engine to explode.
It it really that bad, or just the fact that owners with problems are the only ones posting?? Should I just go ahead and spend thousands of dollars to remove the AFM stuff? Should I not take any trips over 50 miles?
Anyone have a solid motor with 100,000++ miles???
I had an 07 Silverado with the 5.3 AFM engine, and other than it burning a quart of oil every 2500 miles I had zero issues in the 250,000 miles I drove it. I did change the oil every 3000 to 3500 miles and drove it mostly freeway miles. Served me well the for the 16 years I owned it. I did have to replace the oil pressure sender once.
 
yeah they found a crack around 56k miles and replaced it under extended warranty, so that warranty was definitely worth it among other things (i.e. starter craps out at 40k, some tranny issue, steering column locks up completely so i can't start, etc.) The 2014 was made in Mexico, so i wasn't surprised i guess. Best extended warranty ever spent.
Somebody is feeding you a wagon full of BS. These engines do not have a timing belt.
 
My 2012 Silverado LTZ got totaled.. bought a 2015 LTZ with 6.2 and 50K miles. I knew better and bought a good warranty. Within 1000 miles it started ticking. AFM lifter locked up and bent the pushrod. Took a month(parts issue) ..they pulled both cylinders, replaced all the lifters and VLOM parts. Warranty paid $6100 for repairs and rental truck.

Image


See my post from another thread. I have attached the TSB and a technical bulletin that explains how the VLOM parts work. A lot of people don't know exactly how it works.

 
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My 2012 Silverado LTZ got totaled.. bought a 2015 LTZ with 6.2 and 50K miles. I knew better and bought a good warranty. Within 1000 miles it started ticking. AFM lifter locked up and bent the pushrod. Took a month(parts issue) ..they pulled both cylinders, replaced all the lifters and VLOM parts. Warranty paid $6100 for repairs and rental truck.

View attachment 960685

See my post from another thread. I have attached the TSB and a technical bulletin that explains how the VLOM parts work. A lot of people don't know exactly how it works.

And for some reason people think tbe AFM issue for the lifter is a rare occurrence. It’s not. It’s just a matter of when.

the Mexican made silverados in2014 vs the US made in 15 and later is a world of difference. That’s coming from people we know at GM that does failure analysis. Yes they do those statistical analysis esp on all warranty claims.
 
Discussion starter · #39 ·
Certainly not just 2014 Silverados made in Mexico:

“During 2022, GM Mexico manufactured more than 743,000 vehicles in its three production complexes in the country made up of the Ramos Arizpe plant (Chevy Blazer and Equinox), the Silao plant (Chevy Silverado 1500 and GMC Sierra 1500) and the San Luis Potosí plant (GMC Terrain and Chevy Equinox).Jan 26, 2023”
 
The quality at Mexico plant in 2022 is a world of difference from 2014. I wouldn’t care much about that today but in 2014 it was a bad decision for us to do that. If we knew a year later from her GM colleagues on those issues in 2014 we wouldn’t have bought it.

but the lifter issue still persist even late model years.

Certainly not just 2014 Silverados made in Mexico:

“During 2022, GM Mexico manufactured more than 743,000 vehicles in its three production complexes in the country made up of the Ramos Arizpe plant (Chevy Blazer and Equinox), the Silao plant (Chevy Silverado 1500 and GMC Sierra 1500) and the San Luis Potosí plant (GMC Terrain and Chevy Equinox).Jan 26, 2023”
 
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