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AFM....How long have you ran your Avalanche with it?

BainMan

Full Member
Joined
Mar 22, 2019
Messages
566
What year Avi’s are you guys driving?

I’m completely new to the whole tuner game, so I’ve got some reading up to do.
2010 for me. I agree with bpdutton, throttle response is much improved with a tune. Prior to the tune, if I was going to merge into traffic from a stop I would hit the tow/haul button, otherwise the truck had a delayed response and then eventually would jump to 4k rpm. It was difficult to hit the middle ground for acceleration, at least it felt that way to me coming from my old 4-speed 5.4L triton.
 

TriCoatLTZ

Full Member
Joined
Jan 12, 2020
Messages
17
Location
Dallas, Texas
***** WARNING ****** LONG WINDED AND RAMBLING AVALANCHE POST

I have a 2010 LTZ 4wd. I am one of those guys that "puts it in drive and just goes". I am 100% stock (down to my 22inch factory wheels, ok I upgraded the radio quite a bit but you know what I mean). I have 82k miles on it and I read a lot about AFM and I am concerned but I will tell you this:

1) I have had no problems with AFM (I can turn the screen on in the driver center and see it switching all the time on the highway , etc) I never notice any lurching, popping, shudder or exhaust note change that many speak of. It is honestly transparent to me.
2) I change my oil every 8-10 months (usually when the oil life meter is till at like 65% or 70% just on time alone). Oil changes are cheap insurance on any motor that uses oil
3) I burn no oil, nothing, nada. I check my oil at every fill of the gas tank and I have not added any oil ever. I do not run synthetic. I run the same dinosaur oil the manual recommends (I am also careful to see it has the correct dexos designation. My local Chevy dealer sends out some crazy oil change coupons so I either have them do it when its really inconvenient or I just do it myself).
4) I am probably jinxing myself
5) I have a ton of other problems (crap power mirrors that break constantly, driver seat that won't adjust up and down, rear diff started popping at 80k so I put a new, factory diff in to replace it, I just started having the gas won't flow in while filling up without clicking off problem) so don't think I don't have issues. I just don't have any of the AFM ones.

I worry that it will happen. I will drive it until it does. when it does I will have the motor re-done and have it done at one of the shops that does the full AFM delete (the VLOM , everything). I would not replace the truck with anything else because nothing else does what this truck does. I wish it was a Toyota for the reliability but.

1) It fits in my garage , I have 219 inches and it fits, barely. Nothing else with a bed this size and 4 doors will
2) It carries supplies for me rehabbing houses great, even in the rain (Love it at Home Depot when I can stack a bunch of 4x8 sheetrock or ply-wood in the back with the covers on and door closed watching everyone else trying to find plastic to cover up the stuff in their truck beds.
3) It is not a great SUV, honestly the back seat doesn't have that much room, but it is still an SUV that seats 4/5 people in relative comfort
4) It is not a great pickup truck, it has low carry capacity and the towing is abysmal at 5k lbs, but it does have a tuck bed, carries stuff and will pull 5k lbs with relative ease
5) It does not get good gas mileage, but it does pretty well. Empty in mixed driving I get around 16/17 mpg. 13 when I don[t pay attention and lean into it at stoplights etc instead of focusing on driving smoothly
6) It is an LTZ and has really poor ground clearance for when I drive off road at my land lease (but I can pull off the front chin spoiler pretty easy and it does ok)
7) It has a single speed transfer case for 4wd and no manual locking diff, but it has 4 wheel drive and a posi in the rear. I have been fairly adventurous but not stupid and it has gotten me out of everything I have got into at this point

I guess what I am saying is that it is not really great at anything but it is pretty good at everything, for me. The locking bed with the cargo covers (still do not leak a single drop for me but I have used the grease to keep the seals supple) makes it for me. It is a mix of things is does pretty well and meets most of my needs where so many other trucks fall short (or too long for my garage in some instances). Would I buy another Avy? Yeah, ok but it needs to be a 2500 4wd in super shape with reasonable miles ( I shop all the time, I can't find one for sale) or a new one (which we know Chevy will not make and even if they did I could not afford it (common, be honest, it would be $60k or more).

Mine is scary clean, always garaged (which explains the freakishly new appearance since initial purchase even by original owner. I am owner #2). I paid south of $20k for mine (it's and LTZ loaded as hell) two years ago with 62k miles on it with new brakes and brand new tires already done.

It dropped a differential, I paid Chevy $2k for that and some small stuff they found, to fix it all. If it drops the motor I will end up putting $5-7k in it I suspect. the fact of the matter is that I own it and it is a nice truck. For me to get a new pickup that will do 2-3 of the 5-6 things I need it to do better but won't do the other 2-3 at all doesn't help me. Not to mention that I would have to pay $60k for a truck nearly this nice or loaded and make stupid payments for like 60 months or more. The Avy is cheaper to maintain than a new one is to own. Don't even start talking about depreciation on a new truck either.

So I will keep mine, look for an Avy 2500 (If I can find one that is not as dirty as a 90's Brittany Spears video) and keep using it. It is the cheapest, nicest truck,SUV, carry, thingy I can afford to own.

and I like it and think it looks cool...

If anyone is still awake thanks for reading my rant... I hope it makes sense...

Lovin' life in Texas

TriCoatLTZ
 

Navigatin1

SM 2020
Full Member
Joined
Mar 21, 2020
Messages
101
2010 for me. I agree with bpdutton, throttle response is much improved with a tune. Prior to the tune, if I was going to merge into traffic from a stop I would hit the tow/haul button, otherwise the truck had a delayed response and then eventually would jump to 4k rpm. It was difficult to hit the middle ground for acceleration, at least it felt that way to me coming from my old 4-speed 5.4L triton.

See that’s the thing I’m looking to fix. There seems to be (at least to me) a weird “2nd gear” thing with this truck, it feels like it can’t decide sometimes. I have a 2012 with the 5.3, and if I can fix up the shift pattern, and get a good tune on 87 octane, I’ll be happy.
 

Navigatin1

SM 2020
Full Member
Joined
Mar 21, 2020
Messages
101
***** WARNING ****** LONG WINDED AND RAMBLING AVALANCHE POST

I have a 2010 LTZ 4wd. I am one of those guys that "puts it in drive and just goes". I am 100% stock (down to my 22inch factory wheels, ok I upgraded the radio quite a bit but you know what I mean). I have 82k miles on it and I read a lot about AFM and I am concerned but I will tell you this:

1) I have had no problems with AFM (I can turn the screen on in the driver center and see it switching all the time on the highway , etc) I never notice any lurching, popping, shudder or exhaust note change that many speak of. It is honestly transparent to me.
2) I change my oil every 8-10 months (usually when the oil life meter is till at like 65% or 70% just on time alone). Oil changes are cheap insurance on any motor that uses oil
3) I burn no oil, nothing, nada. I check my oil at every fill of the gas tank and I have not added any oil ever. I do not run synthetic. I run the same dinosaur oil the manual recommends (I am also careful to see it has the correct dexos designation. My local Chevy dealer sends out some crazy oil change coupons so I either have them do it when its really inconvenient or I just do it myself).
4) I am probably jinxing myself
5) I have a ton of other problems (crap power mirrors that break constantly, driver seat that won't adjust up and down, rear diff started popping at 80k so I put a new, factory diff in to replace it, I just started having the gas won't flow in while filling up without clicking off problem) so don't think I don't have issues. I just don't have any of the AFM ones.

I worry that it will happen. I will drive it until it does. when it does I will have the motor re-done and have it done at one of the shops that does the full AFM delete (the VLOM , everything). I would not replace the truck with anything else because nothing else does what this truck does. I wish it was a Toyota for the reliability but.

1) It fits in my garage , I have 219 inches and it fits, barely. Nothing else with a bed this size and 4 doors will
2) It carries supplies for me rehabbing houses great, even in the rain (Love it at Home Depot when I can stack a bunch of 4x8 sheetrock or ply-wood in the back with the covers on and door closed watching everyone else trying to find plastic to cover up the stuff in their truck beds.
3) It is not a great SUV, honestly the back seat doesn't have that much room, but it is still an SUV that seats 4/5 people in relative comfort
4) It is not a great pickup truck, it has low carry capacity and the towing is abysmal at 5k lbs, but it does have a tuck bed, carries stuff and will pull 5k lbs with relative ease
5) It does not get good gas mileage, but it does pretty well. Empty in mixed driving I get around 16/17 mpg. 13 when I don[t pay attention and lean into it at stoplights etc instead of focusing on driving smoothly
6) It is an LTZ and has really poor ground clearance for when I drive off road at my land lease (but I can pull off the front chin spoiler pretty easy and it does ok)
7) It has a single speed transfer case for 4wd and no manual locking diff, but it has 4 wheel drive and a posi in the rear. I have been fairly adventurous but not stupid and it has gotten me out of everything I have got into at this point

I guess what I am saying is that it is not really great at anything but it is pretty good at everything, for me. The locking bed with the cargo covers (still do not leak a single drop for me but I have used the grease to keep the seals supple) makes it for me. It is a mix of things is does pretty well and meets most of my needs where so many other trucks fall short (or too long for my garage in some instances). Would I buy another Avy? Yeah, ok but it needs to be a 2500 4wd in super shape with reasonable miles ( I shop all the time, I can't find one for sale) or a new one (which we know Chevy will not make and even if they did I could not afford it (common, be honest, it would be $60k or more).

Mine is scary clean, always garaged (which explains the freakishly new appearance since initial purchase even by original owner. I am owner #2). I paid south of $20k for mine (it's and LTZ loaded as hell) two years ago with 62k miles on it with new brakes and brand new tires already done.

It dropped a differential, I paid Chevy $2k for that and some small stuff they found, to fix it all. If it drops the motor I will end up putting $5-7k in it I suspect. the fact of the matter is that I own it and it is a nice truck. For me to get a new pickup that will do 2-3 of the 5-6 things I need it to do better but won't do the other 2-3 at all doesn't help me. Not to mention that I would have to pay $60k for a truck nearly this nice or loaded and make stupid payments for like 60 months or more. The Avy is cheaper to maintain than a new one is to own. Don't even start talking about depreciation on a new truck either.

So I will keep mine, look for an Avy 2500 (If I can find one that is not as dirty as a 90's Brittany Spears video) and keep using it. It is the cheapest, nicest truck,SUV, carry, thingy I can afford to own.

and I like it and think it looks cool...

If anyone is still awake thanks for reading my rant... I hope it makes sense...

Lovin' life in Texas

TriCoatLTZ
 

BainMan

Full Member
Joined
Mar 22, 2019
Messages
566
See that’s the thing I’m looking to fix. There seems to be (at least to me) a weird “2nd gear” thing with this truck, it feels like it can’t decide sometimes. I have a 2012 with the 5.3, and if I can fix up the shift pattern, and get a good tune on 87 octane, I’ll be happy.
The Diablosport 8245 + Diablewtune absolutely cured this for me. I run an 87 tune. It also fixed the shift pattern where on cruise control going uphill and it can't maintain the speed in 6th gear, it will skip 5th & 4th gears and downshift all the way to 3rd.

 

Navigatin1

SM 2020
Full Member
Joined
Mar 21, 2020
Messages
101
The Diablosport 8245 + Diablewtune absolutely cured this for me. I run an 87 tune. It also fixed the shift pattern where on cruise control going uphill and it can't maintain the speed in 6th gear, it will skip 5th & 4th gears and downshift all the way to 3rd.


Interesting. So you got the tuner, then had a custom program designed for your driving habits/style?

The up hill shifting pattern is another annoyance that I dislike, especially when towing. Did it fix that on yours while towing? Or just the truck by itself?

I live in AZ at an altitude of 5k feet, and frequently tow my side-buh-side up to 8k and down to 1k, and back again. My 2012 LTZ has the towing pkg on it, so I’m able to tow up to 7900lbs, but the shifting still sucks.

If these tuners can fix these things all while running 87 octane (no need for premium at these altitudes), then I’m sold.
 

BainMan

Full Member
Joined
Mar 22, 2019
Messages
566
Interesting. So you got the tuner, then had a custom program designed for your driving habits/style?

The up hill shifting pattern is another annoyance that I dislike, especially when towing. Did it fix that on yours while towing? Or just the truck by itself?

I live in AZ at an altitude of 5k feet, and frequently tow my side-buh-side up to 8k and down to 1k, and back again. My 2012 LTZ has the towing pkg on it, so I’m able to tow up to 7900lbs, but the shifting still sucks.

If these tuners can fix these things all while running 87 octane (no need for premium at these altitudes), then I’m sold.
Yep. You buy the tuner and flash with one of the Diablosport stock tunes (I used 87). Then you drive for at least 150+ miles over several days to let the ECM/TCM relearn. Then you data log (through the tuner) steady driving for 2-3 minutes and send to Lew. Lew then uses this data to create a custom tune. You flash the custom tunes (both engine and transmission, they are separate tune files) back to the truck. Repeat the 150+ miles over several days. Then you data log a wide open throttle run, and he customizes the tune further. Then you reflash again with the adjustments made for WOT.

It is a different truck. In a fantastic way. I have no doubt it would help dramatically with the shift patterns while towing.
 

Navigatin1

SM 2020
Full Member
Joined
Mar 21, 2020
Messages
101
Yep. You buy the tuner and flash with one of the Diablosport stock tunes (I used 87). Then you drive for at least 150+ miles over several days to let the ECM/TCM relearn. Then you data log (through the tuner) steady driving for 2-3 minutes and send to Lew. Lew then uses this data to create a custom tune. You flash the custom tunes (both engine and transmission, they are separate tune files) back to the truck. Repeat the 150+ miles over several days. Then you data log a wide open throttle run, and he customizes the tune further. Then you reflash again with the adjustments made for WOT.

It is a different truck. In a fantastic way. I have no doubt it would help dramatically with the shift patterns while towing.

How was the stock 87 tune on the Diablo?
Can the Diablo flash back your factory tune if you needed too? (Like if you sell the truck)
 

BainMan

Full Member
Joined
Mar 22, 2019
Messages
566
How was the stock 87 tune on the Diablo?
Can the Diablo flash back your factory tune if you needed too? (Like if you sell the truck)
It was better, but did not solve the shift patterns for me.
Yes, you can return to stock at any time, and or flash back and forth from stock to Diablo to Diablew tunes whenever. The refurbished tuners on ebay can be resold at about the same as the purchase price too.
 

Capt.Crunch

PM 2020
Full Member
Joined
Jul 25, 2020
Messages
103
Location
Cincinnati, Ohio
***** WARNING ****** LONG WINDED AND RAMBLING AVALANCHE POST

I have a 2010 LTZ 4wd. I am one of those guys that "puts it in drive and just goes". I am 100% stock (down to my 22inch factory wheels, ok I upgraded the radio quite a bit but you know what I mean). I have 82k miles on it and I read a lot about AFM and I am concerned but I will tell you this:

1) I have had no problems with AFM (I can turn the screen on in the driver center and see it switching all the time on the highway , etc) I never notice any lurching, popping, shudder or exhaust note change that many speak of. It is honestly transparent to me.
2) I change my oil every 8-10 months (usually when the oil life meter is till at like 65% or 70% just on time alone). Oil changes are cheap insurance on any motor that uses oil
3) I burn no oil, nothing, nada. I check my oil at every fill of the gas tank and I have not added any oil ever. I do not run synthetic. I run the same dinosaur oil the manual recommends (I am also careful to see it has the correct dexos designation. My local Chevy dealer sends out some crazy oil change coupons so I either have them do it when its really inconvenient or I just do it myself).
4) I am probably jinxing myself
5) I have a ton of other problems (crap power mirrors that break constantly, driver seat that won't adjust up and down, rear diff started popping at 80k so I put a new, factory diff in to replace it, I just started having the gas won't flow in while filling up without clicking off problem) so don't think I don't have issues. I just don't have any of the AFM ones.

I worry that it will happen. I will drive it until it does. when it does I will have the motor re-done and have it done at one of the shops that does the full AFM delete (the VLOM , everything). I would not replace the truck with anything else because nothing else does what this truck does. I wish it was a Toyota for the reliability but.

1) It fits in my garage , I have 219 inches and it fits, barely. Nothing else with a bed this size and 4 doors will
2) It carries supplies for me rehabbing houses great, even in the rain (Love it at Home Depot when I can stack a bunch of 4x8 sheetrock or ply-wood in the back with the covers on and door closed watching everyone else trying to find plastic to cover up the stuff in their truck beds.
3) It is not a great SUV, honestly the back seat doesn't have that much room, but it is still an SUV that seats 4/5 people in relative comfort
4) It is not a great pickup truck, it has low carry capacity and the towing is abysmal at 5k lbs, but it does have a tuck bed, carries stuff and will pull 5k lbs with relative ease
5) It does not get good gas mileage, but it does pretty well. Empty in mixed driving I get around 16/17 mpg. 13 when I don[t pay attention and lean into it at stoplights etc instead of focusing on driving smoothly
6) It is an LTZ and has really poor ground clearance for when I drive off road at my land lease (but I can pull off the front chin spoiler pretty easy and it does ok)
7) It has a single speed transfer case for 4wd and no manual locking diff, but it has 4 wheel drive and a posi in the rear. I have been fairly adventurous but not stupid and it has gotten me out of everything I have got into at this point

I guess what I am saying is that it is not really great at anything but it is pretty good at everything, for me. The locking bed with the cargo covers (still do not leak a single drop for me but I have used the grease to keep the seals supple) makes it for me. It is a mix of things is does pretty well and meets most of my needs where so many other trucks fall short (or too long for my garage in some instances). Would I buy another Avy? Yeah, ok but it needs to be a 2500 4wd in super shape with reasonable miles ( I shop all the time, I can't find one for sale) or a new one (which we know Chevy will not make and even if they did I could not afford it (common, be honest, it would be $60k or more).

Mine is scary clean, always garaged (which explains the freakishly new appearance since initial purchase even by original owner. I am owner #2). I paid south of $20k for mine (it's and LTZ loaded as hell) two years ago with 62k miles on it with new brakes and brand new tires already done.

It dropped a differential, I paid Chevy $2k for that and some small stuff they found, to fix it all. If it drops the motor I will end up putting $5-7k in it I suspect. the fact of the matter is that I own it and it is a nice truck. For me to get a new pickup that will do 2-3 of the 5-6 things I need it to do better but won't do the other 2-3 at all doesn't help me. Not to mention that I would have to pay $60k for a truck nearly this nice or loaded and make stupid payments for like 60 months or more. The Avy is cheaper to maintain than a new one is to own. Don't even start talking about depreciation on a new truck either.

So I will keep mine, look for an Avy 2500 (If I can find one that is not as dirty as a 90's Brittany Spears video) and keep using it. It is the cheapest, nicest truck,SUV, carry, thingy I can afford to own.

and I like it and think it looks cool...

If anyone is still awake thanks for reading my rant... I hope it makes sense...

Lovin' life in Texas

TriCoatLTZ
Mine is also a 2010 LTZ, I love it and I wouldn't even trade it for a brand new truck, like you said, It does more and is comfortable enough that I can take it on vacation if I want. I have every option available except for electric running boards and you can't even buy a brand new LTZ truck with all the options these have.
 

KingsizeAvalanche

New Member
Joined
Jan 23, 2021
Messages
2
I used the Diablo Predator 2 on mine, it was about $395.00 with tax and all. I've been playing with it for a couple of weeks and it's Great. There is so much you can do with it, I'm still working on getting the perfect setup and I'll post on here what I think others might want to do with their own tunner. We have a few people on here that have the same tunner as mine. That's why I went with the Diablo Predator 2 and the reviews on it were better than any other one that I looked at.
What would be better getting a tuner or having someone tune it with a labtop?
 

Capt.Crunch

PM 2020
Full Member
Joined
Jul 25, 2020
Messages
103
Location
Cincinnati, Ohio
What would be better getting a tuner or having someone tune it with a labtop?
The only bad thing about tuning it with a laptop is...the only person who can access or do anything different to the tune is the person who purchased the program on their laptop, with the Predator you can set the truck up the way you want it and if you decide to go back to the factory settings you can do that. I have done so many different things with it on my truck. If I was to ever sell it I would definitely have to put it back to stock. I've tuned it for 93 octane gas, adjusted my transmission pressure, reset all the shifting patterns and deleted the AFM. It would cost you more to take it to someone and have them buy the different programs and install them than you would spend on the Predator.
 
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