2014 Silverado/Sierra released

[RollingsFarms]

We'll see if they dropped the ball or not when it is tested.

It's been proven it was a bad system since they came out with it in 2007. Check out gmtrucks.com sometimes and read what the owners think about AFM. 90% of GM current and former owners absolutely HATE it. it consumes oil (which GM has no explanation for and is now calling it "normal"), I've read a number of engine failures around 100,000 miles because of AFM. again, go check out gmtrucks.com and other GM truck sites and you will find out all you need to know about AFM. if they have resolved the issues for this new model that tells me 1) they new they had a problem on the 2007-2013 models and lied about it being normal 2) why didn't they make these updates to the current trucks 3) comine numbers 1 and 2 and that will cause you to make alot of people mad because they feel cheated and you just lost them as customers.

 

[Peacock]

90%? Really?

Our '07 Avalanche had it. 3 yrs with no problems. I know it's an issue because the dealer I work for also does Chevy trucks, but I don't know a single person who has actually had any noticeable problem.

The main heavy line tech there is a friend of mine and I've seen him doing the shortblocks and other associated repairs. He says most of the trucks he sees with oil consumption haven't been getting regulate service.

 

[Peacock]

Btw, Honda uses a similar system with little to no issues.

I'm sure that system to be employed on these NEW Gen. V engines will be a new design.

 

[RollingsFarms]

90%? Really?

Our '07 Avalanche had it. 3 yrs with no problems. I know it's an issue because the dealer I work for also does Chevy trucks, but I don't know a single person who has actually had any noticeable problem.

The main heavy line tech there is a friend of mine and I've seen him doing the shortblocks and other associated repairs. He says most of the trucks he sees with oil consumption haven't been getting regulate service.

yes, 90% of the people on gmtrucks.com, I didn't say 90% of GM truck owners. that not getting regular maintinance is a crock of crap and an excuse GM is using to get out of it.

Btw, Honda uses a similar system with little to no issues.

I'm sure that system to be employed on these NEW Gen. V engines will be a new design.

Chryslers' seems to work just fine, too, but what good is that doing GM? like i stated earlier, 6 years of selling trucks with known issues does nothing for the owners of those trucks who are experiencing problems. who says they will want to go buy a new truck with it when they were told the oil consumption was normal? why didn't they fix the issues on the current trucks?

 

[RollingsFarms]

Is Your Gmt-900 Truck Or Suv Using Oil - Fullsize Truck & SUV - GM-Trucks.com


enjoy, doubters.

 

[crashz]

Wow! I can really feel the love!

I'm a big fan of the domestic brands in general, but I like the styling of the GM trucks the best. I've had my 2012 2500HD now for nearly a year and can honestly say that its been by far the best truck I've owned.

I'll be the minority here and say that I like the new truck designs, but "all-new" is a stretch. The exterior is more like a heavy re-fresh. Interior is very nice. I can't wait to see them in person.

Does anybody else have a full line of DI engines and are any NA V8's? That innovative, right? Sounds like GM engineers were reading this board when all the Ecoboost haters came on to bad mouth turbos and such. And they may be on to something. These engines are certainly more simple.

 

[mikehaugen]

On the oil consumption issue, the high acceptable rate is not something new for just the AFM engines. I have an '03 impala, and if I remember correctly there was a TSB stating anything less than 1 qt. per 1000 miles does not need to be adressed and that is considered "normal." Maybe it wasn't that extreme, but I know it was an awful lot.

I would change the oil around 7k and somewhere in the middle of that I would have to add a quart of oil. Not terrible, but more than I like, especially when a quart of synpower is like $7. I recently did the intake manifold gaskets because of a coolant leak, and while I was at it, changed the valve cover gaskets because I was pretty sure that was the source of the oil leak. So far it seems to have taken care of it. This car has 182K on it.

 

[joe t]

Is Your Gmt-900 Truck Or Suv Using Oil - Fullsize Truck & SUV - GM-Trucks.com


enjoy, doubters.

Honestly doesn't seem like that big of an issue, looks like the people burning oil in the first few pages are burning less than a qt in 3000-5000 miles or even less oil, no biggie. If it really bothers you then swap up to 10-30 oil which is thicker or swap to a different brand oil which really does make a difference I've seen it change consumption in my own truck; Valvoline Classic 15/40 high TBN would use about 3/4-1 qt in 10,000 miles, they quit selling that oil and now get Rotella LE low emission oil and at 7500 miles it doesn't use barely any.

Some of those guys though seems like they need a new engine, if my junk smoked at start up that truck would be lemoned which it looks like gm is doing.


I'd be less worried about this than replacing a turbo on the ecoboost at high miles, or all the doodads on the Ram because if they are anything like their older Chrysler makes they will be worth scrap metal in 5 years when that junk starts breaking. Literally my aunt sold a 5 year old Intrepid with a bad wiring harness and some other etc for bascially scrap. Fix the wiring for $1500-2000? and sell the car for 4000 or just sell the car for 1500 as a fixer upper. She decided to sell it as a fixer upper, it sat for a year under a tree for a year oh and one window wouldn't roll all the way up.


If I had to buy my "last" truck to take with me forever I'd get a 5.0 F150. Those mod motors are known for getting tons of miles, ever ride in a taxi cab that has 400k city miles on it because that is pretty common. I always ask and they generally say it is all original. I always wash my hands after getting out of one of those cars and try not to touch too much like I am in a porti potty, lol.

 

[joe t]

On the oil consumption issue, the high acceptable rate is not something new for just the AFM engines. I have an '03 impala, and if I remember correctly there was a TSB stating anything less than 1 qt. per 1000 miles does not need to be adressed and that is considered "normal." Maybe it wasn't that extreme, but I know it was an awful lot.

I would change the oil around 7k and somewhere in the middle of that I would have to add a quart of oil. Not terrible, but more than I like, especially when a quart of synpower is like $7. I recently did the intake manifold gaskets because of a coolant leak, and while I was at it, changed the valve cover gaskets because I was pretty sure that was the source of the oil leak. So far it seems to have taken care of it. This car has 182K on it.

Cummins is even the same or worse. I think they say 750 or even 500 miles per qt how ever the math works. That is when they recommend a rebuild. This is from a direct email from Cummins when I was asking because I was going to buy a toter special built dodge ram to pull airplanes with at an auction. Had like 6000 miles on it but around that many hours so I asked and that was their reply. They also told me to get back with them and send them pics when I was done, pretty cool, too bad I lost the bid on the auction.

 

[Peacock]

yes, 90% of the people on gmtrucks.com, I didn't say 90% of GM truck owners. that not getting regular maintinance is a crock of crap and an excuse GM is using to get out of it.

Chryslers' seems to work just fine, too, but what good is that doing GM? like i stated earlier, 6 years of selling trucks with known issues does nothing for the owners of those trucks who are experiencing problems. who says they will want to go buy a new truck with it when they were told the oil consumption was normal? why didn't they fix the issues on the current trucks?

I don't think GM is stating that the problem is caused by a lack of maintenance. It was just an observation by the tech.

Why did Ford replace spark plugs that blow with ones that get stuck and break off in the head?

 

[Storm56]

I had an 07 Avalanche with the 5.3. Changed oil every 5000 miles. Never had to add any between changes and if it ever used any oil I could not detect it when checking the oil on the dipstick. The engine made acceptable power for my uses which included towing trailers up to 5000 pounds and delivered very acceptable fuel economy. It was a very good and trouble free vehicle. When I upgraded last year I went with a Longhorn Ram but if GM had upgraded the Ave I would have probably bought another.

 

[Diamondpilot]

You guys think I get heated here you should see me around my old college roommate Adam. He is die hard GM guy. We graduated college in 1992 and I would say he has had 12 gm trucks since then. Two were 2500 series with the 6.0L. All in all they were good to him but we once tried to use his 2003 to put in and out my boat, 15,600#, which was over the 12,000# tow rating I know but it would not pull the boat from the lake in 4 low. We did over 20,000# with a V-10 Ford's (1999-2001-2005) with no hesitation well over 100 times and have done 25,000# with the 05 V-10 Ford with 4.30 gears. Not sure what gears his 2500's had but I think they were all 4.10 gears until recently and the 6 speed tranny.

He has also had a Escalade and it was plagued from day one with wiring issues.

Now for the 5.3L trucks. He has had two Avalanches, three or four Tahoes, and maybe 4 or so Silverado's. Most of these have been fine trucks but 3 of these 5.3L motors have used as much as 1 qt of oil per 1500 miles. He was never happy about that. He did have one motor fail and one tranny fail. The motor that failed had a cam shaft break. Very unusual failure. His tranny that failed they found a ball bearing in it about the size of a pea that they could never trace down the source of. Best guess is that a machine on the assembly line failed and parts scattered and he was lucky enough to end up with one.

Now back to GM oil consumption. This is noting new. I have been a 8.1L boat motor lover for years but they use oil. About 1 qt every 30 hours. That is equal to 1000 miles in the boating world. I have also owned two Saturns, both with the DOHC 1.9L and both used oil. One just a qt between changes of 3,000 miles, the other used a qt every 600 miles and was not much better when I switched from the recommended 5W30 to 10W40. My grandfather had a few Northstar V8 Caddys and they all used oil. I have had about 25 cars and trucks from GM, Ford, Dodge, Honda, Toyota, Nissan, BMW, ect. The only 3 vehicles I have ever added a drop of oil to is the two GM cars I have had noted above and this was on 3,000 mile oil change intervals. I also add a qt of oil to my Twin Turbo BMW but on it I go 15,000 mile oil change intervals and I run a very thin 0W20 synthetic oil.

Now back to GM trucks and oil. I have done better than 100 oil changes on GM trucks in my last 20 years and it seems they can not build a truck without putting a cross member where the oil drains right on it and makes a big mess. I guess they could tout this as a anti-rust frame due to the constant oiling. Other manufactures put a deflector like all my Fords had to keep things clean.

Chris

 

[Peacock]

Are you seriously not able to keep oil off the skid plate on GM trucks? It is very easy to do. What 4 bolts? Or even a single rag is all that is needed. The Ford has a deflector because they had the 'better idea' to put the filter above the front axle.

Wow. Talk about grasping at straws people. It really is unbelievable the bias in here. I worked as a Ford tech for 4 years and I saw things that would keep me from ever buying an f-series truck. I don't feel the need to bring my brother's friend's cousin's neighbor's acquaintance and state that as a rule for the brand as a whole.

 

[timswi]

Are you seriously not able to keep oil off the skid plate on GM trucks? It is very easy to do. What 4 bolts? Or even a single rag is all that is needed. The Ford has a deflector because they had the 'better idea' to put the filter above the front axle.

Wow. Talk about grasping at straws people. It really is unbelievable the bias in here. I worked as a Ford tech for 4 years and I saw things that would keep me from ever buying an f-series truck. I don't feel the need to bring my brother's friend's cousin's neighbor's acquaintance and state that as a rule for the brand as a whole.

:drink:

 

[Ryan03]

I just jack up the front end when changing the oil. This forces any oil that hits the skid plate to run toward the back of the plate and into the drain pan. Work smarter not harder.

 

[timswi]

I just jack up the front end when changing the oil. This forces any oil that hits the skid plate to run toward the back of the plate and into the drain pan. Work smarter not harder.

On my GMC, I only have to wipe off a slight amount on the crossmember...I don't see it as a problem, in fact I never gave it a second thought..I've dealt with far worse from other manufactuers...One paper towel takes care of it...If I jacked it up I wouldn't even have to do that...You're right.

 

[joe t]

Funny thing is I had an lt1 z28 camaro and it never used a drop. I mean 5000 mile oil changes with mobile 1 and it would be dead full when I changed it. Sold the car at 105k miles drove it from 16-21 years old.

Maybe gm should put a 1qt deeper pan on the trucks and a 2 qt safety zone on the dipstick.

 

[clemsonfor]

my Saturn pours all over the axle and under carriage from the filter, but its so dirty n oily there and I have old wore out asphault and gravel I don't care where it goes I don't worry about it. I don't live in the "subdivision" as Phil Robertson says!! haha. I like the ranger I have easy oil plug and filter don't hit everything as you pull it off, I have a Mitubishi Mighty max farm truck, its pretty slick too, and the K10 is easy with the verticle filter that allows it to be filled to the top to be put on, and the drain is not in a place to get on stuff? But I drive old stuff and I like it old and easy to work on and costs nothing to own!

 

[deerefan]

my Saturn pours all over the axle and under carriage from the filter, but its so dirty n oily there and I have old wore out asphault and gravel I don't care where it goes I don't worry about it. I don't live in the "subdivision" as Phil Robertson says!! haha. I like the ranger I have easy oil plug and filter don't hit everything as you pull it off, I have a Mitubishi Mighty max farm truck, its pretty slick too, and the K10 is easy with the verticle filter that allows it to be filled to the top to be put on, and the drain is not in a place to get on stuff? But I drive old stuff and I like it old and easy to work on and costs nothing to own!

I like your way of thinking. Getting near impossible to wrench on new stuff.

 

[wny770]

I'm on my 2nd Silverado 5.3 with the AFM. Neither of my trucks have burned a drop. In fact, until I read everyone here criticizing GM, I never even knew this was a problem. How about if you don't like something, don't buy it. I could never put down someone elses vehicle as bad as some do here. Freedom?