[shakenfake]

@fubolibs nobody is defending AFM lifters lol we all know they suck. We also know statistically there just aren’t that many that fail.

Also the weird obsession you have with Mexico being a bad manufacturer is just stupid lol GM has been building vehicles and trucks in MX for more than 20 years.

 

[fubolibs]

that’s not correct at all. Statistically it’s very significant. Like I said quality is measured with 6 sigma which is 3 failures per 1 million. This ain’t it. Lol

You are assuming I don’t think GM sucks in general. Honestly I think the Silverado EV will probably be the most reliable truck it has ever made assuming it doesn’t catch fire like the first generation Bolt.

@fubolibs nobody is defending AFM lifters lol we all know they suck. We also know statistically there just aren’t that many that fail.

Also the weird obsession you have with Mexico being a bad manufacturer is just stupid lol GM has been building vehicles and trucks in MX for more than 20 years.

 

[shakenfake]

 

[fubolibs]

Also many of your attitudes on this forum is like well I can fix it myself for spending XXX hours. Ya GM thanks you for being their free labor. 😀😀😀😀

I don’t care if i pay the dealer extra if they do fix the issue. Money isn’t really my gripe here it’s more wasting my time when the truck breaks down that I have to take it in. So yes I can go around to take to some other unknown mechanic have them try to fix it cheaper andnot knowing if it is done right and if it’s not waste of even more time taking it to another place.

unless you arefixing your truck as a hobby never not count the time as actually worth more. It is your life you are wasting due to a defect in a product. Just saying.

 

[Jstucker1976]

Problem is the dealer is going to fix it temporarily with the same junk parts. I did it myself and removed and replaced with quality parts less likely to fail. If it breaks it on me and no one else to blame

 

[tsuintx]

Btw it’s hilarious when you guys are trying to make an issue between timing belt vs timing chain. Meanwhile you are defending GM crap quality on lifters. Lmao.

Well… When somebody says they had the TIMING BELT in their GM full-size truck replaced, warranty or not, it throws any and all credibility of that person out the window.

 

[dav2no1]

My 2012 silverado ltz was made in Mexico. Had it from 16K miles to 80K when it got totaled. Had very few issues with that truck. I feel that the quality of everything, regardless of where it's built nowadays sucks. I have a large freezer in the basement that's been there as long as I've been alive...worked when I was a kid and 53 years later still working

 

[Chevy-SS]

..... I feel that the quality of everything, regardless of where it's built nowadays sucks. I have a large freezer in the basement that's been there as long as I've been alive...worked when I was a kid and 53 years later still working

Ahh grasshopper, you are even wiser than I originally thought!!!!!!!!!!!!!!!!!!!!!! 👏

 

[fubolibs]

Well… When somebody says they had the TIMING BELT in their GM full-size truck replaced, warranty or not, it throws any and all credibility of that person out the window.

I ain’t a mechanic so if I said timing belt instead of timing chain, so what?

You go and enjoy working free for GM. Lmao.

 

[Zzoogg]

You know, I sort of figured that when you first posted it. I thought, “ no big deal. He just used to wrong word…so what??”

 

[shakenfake]

What does working for GM for free mean lol

 

[tsuintx]

You know, I sort of figured that when you first posted it. I thought, “ no big deal. He just used to wrong word…so what??”

So did I. But then he kept on repeating it over and over. Anyway… Have you decided yet what your course of action is going to be?

 

[byers18]

I just sold a 2014 5.3 with over 290k. AFM turned off since 60k. Never touched the motor aside from spark plugs and thermostats. Changed oil every 8,000. Between my dad and I we have had 2 07 5.3s and currently have a 2012 5.3 all over 200k with zero problems. The one 07 had over 340k. My 14 was the only one that had AFM disabled.

 

[72Malibu]

2015, 6.2, rolled 78k this past Saturday. I always do extended warranties. Bought truck with 45k on it, torque conv (8-speed) went bad on way home from dealer. Had to have lifters done around 55k.
I run M1 filters and either M1 or Valvoline 0w-20. Not a problem since.
Since I do live but a short distance from work, and speeds are below 50, I put tranny so it doesn't shift higher than 7th so v4 mode never activates. Does it really make a difference? I dunno. Probably not. Warranty is up in Dec so we'll see what happens then.

I'll continue to buy GM "junk" as some of you refer to it. I will not own a Ram, and since the Ford (and Dodge/Ram) dealer is more crooked than a DC politician, GM it will be. Or whomever continues to offer ice's in the future.

 

[paulguide123]

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???

Get a Pulse from Range tech for $450. it defeats the afm and truck will shift better and downshift better. and you won't have to worry about your engine getting trashed

 

[CharlieD139]

Send your ECM to have it programmed out. No more changing 8 to 4 cylinders. That’s what I did and I love it. Also install bypass kit in transmission cooler block.

 

[rgillis777]

Wife's 2010 Suburban LT Z71 with 205k miles on original engine/trans. Mixed driving back and forth to work, long trips SoCal to central OR, occasional light towing. SynOil changes every 5k, "complete" trans fluid every 30k. Stay consistent with your services and just drive it.

 

[a1smith]

that’s not correct at all. Statistically it’s very significant. Like I said quality is measured with 6 sigma which is 3 failures per 1 million. This ain’t it. Lol

You are assuming I don’t think GM sucks in general. Honestly I think the Silverado EV will probably be the most reliable truck it has ever made assuming it doesn’t catch fire like the first generation Bolt.

Six sigma is 3.4 defects per million opportunities (DPMO), NOT 3.4 defects (failures) per million products.

 

[a1smith]

I will surely check on the transmission thermostat. Heat is generally the tranny killer.

Here is a post discussing the latest part number for the GM transmission bypass cooler. They updated to a new part number after the TSB came out.

New part number for 70C transmission cooler bypass valve

The 70C (158F) transmission cooler bypass valve (86774933) mentioned in the Technical Service Bulletin has been superseded by 85585333. Make sure you get the latest part . . . . Here is the TSB - it still mentions the old part number. https://static.nhtsa.gov/odi/tsbs/2021/MC-10207911-9999.pdf...

www.silveradosierra.com

I changed mine and it took about 15-20 minutes. I added some installation tips in the discussion for that post.

 

[eastcoast1988]

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 just traded my 2015 Silverado lt 5.3 111000 great truck never had any major engine problems but traded it because out of extended warranty and read about torque converter problems etc.