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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 02-17-2009, 10:20 AM   #1
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Problems with Active Fuel Management ?

Are their problems with Active Fuel Management ?

I did a Google search and fond some problems so i am going to change my order to m6 and Ls3.
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Old 02-17-2009, 10:23 AM   #2
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Do you believe everything google tells you?
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Old 02-17-2009, 10:27 AM   #3
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Old 02-17-2009, 10:43 AM   #4
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I own a 5.3 l silverado with afm and haven't had any problems have almost 40k on my 07 silverado. So do what u want.
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Old 02-17-2009, 10:46 AM   #5
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haven't heard of any problems.
sure you didn't just want a reason to get the stick?
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Old 02-17-2009, 10:57 AM   #6
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If you want a stick get one, I haven't heard of any of serious issues with AFM, it's a proven technology at this point.
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Old 02-17-2009, 11:13 AM   #7
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Just keep the royal purple fresh and it should be fine. Maybe in 25-30 years when the engine needs rebuild it will show lot more wear or fail at the more active cyl. Otherwise that's not really a show stopper as it should deliver way over 200,000k without major problem with the block.
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Old 02-17-2009, 11:16 AM   #8
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Quote:
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Are their problems with Active Fuel Management ?

I did a Google search and fond some problems so i am going to change my order to m6 and Ls3.
what problems did you find?
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Old 02-17-2009, 12:01 PM   #9
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Like i said do a search and go to /www.gminsidenews.com/forums/f53/active-fuel-management-50389/ read some of the posts some good some not good
as this is still new and found that the heads are not the same as Ls3.
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Old 02-17-2009, 04:25 PM   #10
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FAIL

That post is a year and a half old and about 5.3Ls
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Old 02-17-2009, 06:31 PM   #11
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FAIL

That post is a year and a half old and about 5.3Ls
So did gm not make the 5.3 ? and if it is new on the 6.2 do you want to be the gin pig i do not.
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Old 02-17-2009, 07:05 PM   #12
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Very small number of problems. I don't know how someone so paranoid could stand leaving the house let alone drive a car.
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Old 02-17-2009, 09:42 PM   #13
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Very small number of problems. I don't know how someone so paranoid could stand leaving the house let alone drive a car.
you call it paranoid i call it smart.
you don't know gm.
As for leaving the house or Driving a car i drive 120+ miles a day 5 to 6 days a week that's ho my 2004 gmc Yukon Denali XL Has 194,000 in 4 Yr 5 mo,
so dont tell me i am paranoid
think first.
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Old 02-17-2009, 10:27 PM   #14
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I have a 2007 Tahoe with 5.3 and afm, 30000 miles. AFM has provided smooth trouble free operation!

On order 2SS, 10/31
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Old 02-17-2009, 11:43 PM   #15
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The first batch needed a reprogramming cause it wasn't very smooth when it made the switch. That was awhile back and I haven't seen one come in for that for a few months. I would be more worried about a gas spike if I were you.

And if any of you remember 81 Cadillacs with the V8-6-4 that was way ahead of its time.
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Old 02-18-2009, 12:29 AM   #16
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Thanks for the info but gas $ is not a problem Down time is, my dad had the 81-82 Cad 's
I had a 79 TA 4sd Black 400 SE Y84 car had it all T-top and 4WD, So i drive a lot.

VIN 2W87Z9N132057

I got it in FL and drove back to L.A. CA
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Old 02-18-2009, 01:01 AM   #17
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I personally don't like the idea of half of my cylinders not firing (harmonic/vibration issues and extra valvetrain weight/parts) but I am sure GM did A LOT of testing before even putting this technology into their motors.
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Old 02-18-2009, 01:17 AM   #18
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I personally don't like the idea of half of my cylinders not firing (harmonic/vibration issues and extra valvetrain weight/parts) but I am sure GM did A LOT of testing before even putting this technology into their motors.
First the ls3 and l99 are not the same block or heads and valvetrain also the pistons are not the same so think about it for me i will go 6m and ls3.

P.S. What do you thank of the new 6L80.

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Old 02-18-2009, 01:20 AM   #19
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Oh man, I'm about to blow the lid off my moniker under my avatar with this thread.

AFM. Bought two 2008 work trucks with the 5.3 and the now standard AFM. Being very skeptical, I asked the dealer prior to buying and of course the line goes like this..."Oh you can't tell when you romp on the gas that the engine is switching from V4 to V8". After driving them during the test drive I could not tell a big difference but there WAS a difference.

Most like me, don't really want to "hammer down" during the test drive with the dealer riding shotgun, and more importantly you really don't want to go to extremes with a new vehicle before the break-in period anyway. However, once the break-in is over and you actually get to see what your new ride will do, I fully believe that you will be able to tell the difference when you mash that gas.

Now let's go old school for a minute. I drive daily a 2003 Crew Cab Sierra with the 6.0. Bigger engine, more weight, but with no AFM. You mash it, you get it, plain and simple. Head-to-head with the 5.3 AFM loaded work truck, my non-AFM can be beat.....but not by much. The 5.3 is a shorter truck w/o all the Heavy duty equipment and it SHOULD by all means blow the doors off my HD, but it can't. Why? IMVHO...it's the AFM.

Also, as of today and 5,000 miles into a brand new Yuke with 5.3 AFM, when I go to pass in a hurry b/c some jack@ss doesn't know how to merge onto the interstate, the truck has alot of hesitation in it. The 2005 Yukon did not have that much hesitation, so w/o any doubt in my mind, the AFM is the cause of that hesitation.

Now comes the new generation Camaro with the same technology and I ask why. It's a Camaro. It's not the family sedan. It's not the "Hey, let's load up the family and go on vacation" mini-van. It's a re-style of a very popular CLASSIC HOT ROD. Why does a new Camaro have to have this AFM? After actually experiencing the AFM, the decision to implement it into this car makes no sense to me whatsoever.

Some will probably deduce that it's b/c GM wanted to avoid the gas guzzler tax, or make it more popular with people who want more gas mileage. All that hullaballo makes me want to. You want gas mileage....buy a hybrid! You want a NEW Classic Hot rod, don't sweat the small stuff like the mileage it gets. It's supposed to be a muscle car, a hot rod, a jet car....not a YUGO!

WHEW! Got carried away there, but I feel better.

Bottom line and in line with this thread, the only problem I've found wrong with the AFM is the hesitation in acceleration. Do I like it?....heck NO! Will it save you gas in the long run? Probably so, considering that if that's what you want out of your Camaro (or other GM product) then you will be the one(s) most likely to keep your foot off the pedal anyway, regardless of AFM.

It really remains to be seen what kind of effect that AFM will have on the 5th Gen. Camaro (maybe some of the lucky people that have actually spent some time behind the wheel will weigh in on the subject), but it makes me ponder, What would the car be like without AFM?
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Old 02-18-2009, 01:33 AM   #20
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AMEN thank you see its not about more gas mileage i drive GMC Yukon Denali XL 6.0l and at $4.15 a gl i spent $900.00 a month in June, July and august so getting a camaro is not for gas mileage its for fun. and work
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Old 02-18-2009, 12:40 PM   #21
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Just because there were issues 2 years ago on a new design does not mean that same problem will happen with a new engine. In fact, if GM has corrected the problem on those other engines it would be almost impossible for the same problem to occur in the L99. The issue was with the AFM system on the LS series of engines, when its fixed for one its fixed for all.

ZYAL8R, could it have been something to do with the extra 13% displacement? Or the fact that the 5.3 has never been known as a particularly good example of the LS series of engines? As for the fuel economy, what would you rather have, an automatic that gets 14 city, 21 highway or one that gets 15 city, 23 highway? The added cost of the system is minimal.
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Old 02-18-2009, 01:43 PM   #22
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Some will probably deduce that it's b/c GM wanted to avoid the gas guzzler tax
The Camaro is really a strong hp/$ value and protecting that value by avoiding the gas guzzler tax is an important competitive advantage. Other than that, it's just waiting to see how it actually performs on the Camaro.
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Old 02-18-2009, 02:03 PM   #23
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Some will probably deduce that it's b/c GM wanted to avoid the gas guzzler tax, or make it more popular with people who want more gas mileage. All that hullaballo makes me want to. You want gas mileage....buy a hybrid!
It has nothing to do with GM, and the people who want more gas mileage (for our own good, of course) are these two....
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Old 02-18-2009, 03:27 PM   #24
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It has nothing to do with GM, and the people who want more gas mileage (for our own good, of course) are these two....
the country wants to lower it's dependence on foreign oil. better gas mileage helps.

the people (country) = want better gas mileage.
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Old 02-18-2009, 04:26 PM   #25
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the country wants to lower it's dependence on foreign oil. better gas mileage helps.

the people (country) = want better gas mileage.
FTW! DRILL ALASKA!!!!
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