Afm problem

[TXGREEK]

I get 15 MPG on a good day with my '07. Driving around in 3rd would net me 12 at best - probably 10, realistically. Cheaper in the long run to just buy the Range, and be done with it.  

Get a tuner, lots more you can do with it than that device


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[Jsdirt]

1 hour ago, Grumpy Bear said:

I notice that every one of those lifter bodies is scored.  

 

The pins are what, sheared off or stuck retracted? The failed unit pins are flush with the plungers! 

The lifter bores have a spec of .843"-.844 - when they're just slightly worn, enough oil pressure is bled off that the pins will not unlock. There's a myriad of other ways this system can fail, but this is ONE of the ways just the lifters fail.

[Jsdirt]

1 hour ago, TXGREEK said:

Get a tuner, lots more you can do with it than that device


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I've had a Hypertech handheld program in the thing since it was new. I needs a REAL tune, but I'm not doing that until I install a supercharger. At this point I'm not sure I want to supercharge this engine - it's at 103k, and should be due for top end failure any day now. Might just wait until the engine fails, then buy a crate, and supercharge that.

[KARNUT]

I've had a Hypertech handheld program in the thing since it was new. I needs a REAL tune, but I'm not doing that until I install a supercharger. At this point I'm not sure I want to supercharge this engine - it's at 103k, and should be due for top end failure any day now. Might just wait until the engine fails, then buy a crate, and supercharge that.

I had the same goal when I bought my 14. It was a retirement gift to myself. Right about now I would have 170K miles on it. I already had a 92 that was highly modified. Speed became less important now I have a Avalanche with 178K on it. I have no fear of failure with this one. After reading up on the cylinder deactivation nonsense on my 14 it was gone before the warranty was up. Shame that truck was a peach otherwise. I struck gold with the Avalanche.


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[Tucker]

5 hours ago, flyingfool said:

our trucks already have the Range device built into the software, it's easy to activate, no need to spend $200 for this contraption. just manually shif to the gear that disables the v4 mode.  6 speed trucks is m5 gear. i dont know why people keep buying stuff like this

Well I bought the Range because I expect all 6 gears to work just like I want all 8 cylinders working all the time. I'll spend my money how I want, you spend yours like wise !

 

Edited October 13, 2020 by Tucker

[mookdoc6]

39 minutes ago, Jsdirt said:

I've had a Hypertech handheld program in the thing since it was new. I needs a REAL tune, but I'm not doing that until I install a supercharger. At this point I'm not sure I want to supercharge this engine - it's at 103k, and should be due for top end failure any day now. Might just wait until the engine fails, then buy a crate, and supercharge that.

Let me get this straight?  Everything American made now is junk?  GM cheeped out and engine and internals are now procured from Lithuania and Uganda?  Your trans died because that is crap too. Trans just recently grenade and your Thinking about supercharging the engine?  This is the fodder I yearn for my son!  That and the other gentleman who likes drop another 1qt of AMSOIL into the OL' crankcase just for good measure...……….Gots me plenty of tears today! 

Edited October 13, 2020 by mookdoc6

[Jsdirt]

17 minutes ago, mookdoc6 said:

Let me get this straight?  Everything American made now is junk?  GM cheeped out and engine and internals are now procured from Lithuania and Uganda?  Your trans died because that is crap too. Trans just recently grenade and your Thinking about supercharging the engine?  This is the fodder I yearn for my son!  That and the other gentleman who likes drop another 1qt of AMSOIL into the OL' crankcase just for good measure...……….Gots me plenty of tears today! 

Got news for ya, Mook - EVERYTHING is F'ing junk today!  And YES - my Silverado is a piece of ******!

 

I've had heavily modified cars from the 70's & 80's running on 100% STOCK transmission, rear end, and engine internals (aside from cam, lifters, and springs), beat the holy hell out of them as a teenager would, and NEVER EVER ONCE had failures like this. NEVER!!! I bet I put 150k miles on my '78 Cutlass in 3 years. Had a Crane 292 cam, Edelbrock 600 CFM carb, HEI ignition, Holley Dominator Strip intake, headers, etc, etc.. I used to drag race everyone I came across, and hold the thing at 4,500 RPM on the highway for HOURS.  

 

My '72 El Camino I bought in Phoenix well worn out. Spent some money tuning her up, and got her running decent. Used to blow oil right out of the breather on the highway since it had so many miles - hundreds of thousands of miles in 110°+  summer temps. I commuted and generally beat on it for 2 years out West. Made trips to Mexico, and up to my buddy's place in Livermore, 900 mi. ONE way with the motorcycle in back, doing 90 MPH for 5 hours straight at 4,500 RPM. Later I pulled a U-Haul loaded with everything I owned and drove clear across the country - 3,300 miles back home, doing 75-85 MPH for 5 days straight!  Then, I commuted with that back here in MA for another 3 years, and sold the car with ALL the SAME DRIVELINE 11 years later!! So don't tell me something I did to MY truck caused it to fail. It failed because it's a piece of ******!!

 

And since you have no reading comprehension, I'm in the process of replacing my transmission with one built to the moon - 1,000% better than anything GM could ever dream of building. Also, when my rear differential failed at 97k miles, I replaced that with a 4-pinion Ox Locker. It's ready for anything now.

Edited October 13, 2020 by Jsdirt

[mookdoc6]

24 minutes ago, Jsdirt said:

Got news for ya, Mook - EVERYTHING is F'ing junk today!  And YES - my Silverado is a piece of ******! 

 

I've had heavily modified cars from the 70's & 80's running on 100% STOCK transmission, rear end, and engine internals (aside from cam, lifters, and springs), beat the holy hell out of them as a teenager would, and NEVER EVER ONCE had failures like this. NEVER!!! I bet I put 150k miles on my '78 Cutlass in 3 years. Had a Crane 292 cam, Edelbrock 600 CFM carb, HEI ignition, Holley Dominator Strip intake, headers, etc, etc.. I used to drag race everyone I came across, and hold the thing at 4,500 RPM on the highway for HOURS.  

 

My '72 El Camino I bought in Phoenix well worn out. Spent some money tuning her up, and got her running decent. Used to blow oil right out of the breather on the highway since it had so many miles - hundreds of thousands of miles in 110°+  summer temps. I commuted and generally beat on it for 2 years out West. Made trips to Mexico, and up to my buddy's place in Livermore, 900 mi. ONE way with the motorcycle in back, doing 90 MPH for 5 hours straight at 4,500 RPM. Later I pulled a U-Haul loaded with everything I owned and drove clear across the country - 3,300 miles back home, doing 75-85 MPH for 5 days straight!  Then, I commuted with that back here in MA for another 3 years, and sold the car with ALL the SAME DRIVELINE 11 years later!! So don't tell me something I did to MY truck caused it to fail. It failed because it's a piece of ******!!

 

And since you have no reading comprehension, I'm in the process of replacing my transmission with one built to the moon - 1,000% better than anything GM could ever dream of building. Also, when my rear differential failed at 97k miles, I replaced that with a 4-pinion Ox Locker. It's ready for anything now.

Got news for ya, Mook - EVERYTHING is F'ing junk today!  And YES - my Silverado is a piece of ******!

 

You could sell your JUNK-900 series and get a 2019 "CLASSIC" which is something made today and I am willing to bet it's comparatively of manufactured with much better "JUNK" than the junk you have?  Hope I can help...………...

[KARNUT]

Got news for ya, Mook - EVERYTHING is F'ing junk today!  And YES - my Silverado is a piece of ******!
 
I've had heavily modified cars from the 70's & 80's running on 100% STOCK transmission, rear end, and engine internals (aside from cam, lifters, and springs), beat the holy hell out of them as a teenager would, and NEVER EVER ONCE had failures like this. NEVER!!! I bet I put 150k miles on my '78 Cutlass in 3 years. Had a Crane 292 cam, Edelbrock 600 CFM carb, HEI ignition, Holley Dominator Strip intake, headers, etc, etc.. I used to drag race everyone I came across, and hold the thing at 4,500 RPM on the highway for HOURS.  
 
My '72 El Camino I bought in Phoenix well worn out. Spent some money tuning her up, and got her running decent. Used to blow oil right out of the breather on the highway since it had so many miles - hundreds of thousands of miles in 110°+  summer temps. I commuted and generally beat on it for 2 years out West. Made trips to Mexico, and up to my buddy's place in Livermore, 900 mi. ONE way with the motorcycle in back, doing 90 MPH for 5 hours straight at 4,500 RPM. Later I pulled a U-Haul loaded with everything I owned and drove clear across the country - 3,300 miles back home, doing 75-85 MPH for 5 days straight!  Then, I commuted with that back here in MA for another 3 years, and sold the car with ALL the SAME DRIVELINE 11 years later!! So don't tell me something I did to MY truck caused it to fail. It failed because it's a piece of ******!!
 
And since you have no reading comprehension, I'm in the process of replacing my transmission with one built to the moon - 1,000% better than anything GM could ever dream of building. Also, when my rear differential failed at 97k miles, I replaced that with a 4-pinion Ox Locker. It's ready for anything now.

I can second that emotion. My last 92 Chevy truck was a 383, MSD, whipple with 12LBs of boost 700R4, 373. I had 12 years. Recently sold to a family member. The whole time it used a qt of oil every 500 miles. Still does. I have an 01 Acura intagra type R that spins 4K at 70. My 94 Z-28 was around 9 years and my impala ss 7. My wife’s Genesis is going on 11. My wife drives as hard as I do. That’s the rule for 40 years. I’ve owned at least one of every lettered or numbered cars from the big three. With the exception of the 80s some pretty tuff engines. Theses Frankenstein engines, it ain’t happening.


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[TXGREEK]

Got news for ya, Mook - EVERYTHING is F'ing junk today!  And YES - my Silverado is a piece of ******!
 
You could sell your JUNK-900 series and get a 2019 "CLASSIC" which is something made today and I am willing to bet it's comparatively of manufactured with much better "JUNK" than the junk you have?  Hope I can help...………...

Not everything today is necessarily junk, just requires quality preventative maintenance. The complaints in these forums are at best minimal when compared to the majority that are very happy with their vehicles which don’t engage in forums.
I don’t have anything really to complain about my truck, nothing that’s pushing me to sell it, I take excellent care of it, extremely reliable and intend on keeping it this way.

All the complaints in these forums are coming from people that either use GM products or cheapest available priced lubricants for extended OCI’s. Todays vehicle manufacturers have an enormous task at hand by trying to appease consumers and the new government regulations which require hundreds of millions of dollars to be invested by manufacturers in order to completely redesign their drivetrain. And then consumers are expecting their vehicles to last no matter what they’re using or doing for intervals.


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[flyingfool]

4 hours ago, lucas287 said:

Actually, on the trucks, M5 or lower (6L80) and M7 or lower (8L90) prevents AFM from enabling. Period. Comparing the OS from 2009 era to the new OS is like comparing your iPhone 3G to the iPhone whatever-the-hell they're about to come out with. 

 

Even with HPTuners I cannot override that. I wouldn't mind AFM in a lower gear in some situations. A master switch and individual gear control would be nice. 

fact is I have a 2016 and AFM WILL NOT engage in 5th gear

Edited October 13, 2020 by flyingfool

[Grumpy Bear]

1 hour ago, flyingfool said:

fact is I have a 2016 and AFM WILL NOT engage in 5th gear

My 2015 will not got into AFM in M5. That said I can put it in M5, set the cruise to 55 mph, Trip in the Tow mode then shift to D and it will stay in 5th gear and it will go into AFM. Lot of monkey motion but....I had to know.  

[Grumpy Bear]

3 hours ago, Jsdirt said:

The lifter bores have a spec of .843"-.844 - when they're just slightly worn, enough oil pressure is bled off that the pins will not unlock. 

That's what I thought and that sir IS a lubrication issue. 

 

3 hours ago, Jsdirt said:

            There's a myriad of other ways this system can fail, but this is ONE of the ways just the lifters fail.

I'm sure of it. Not all failures are lubricant related. Valve spring failures can happen in the best equipment on the planet IF the guy behind the wheel sends it past it's limits. Rod bolt failures ditto. You see the point. Parts miss heat treat or are just undersized or wrong material spec. QC issues. Thing is, and I've held this belief along while, is that if a part will go just 20 K the chances of a materials/workmanship related problem are slim. Exceptions? Sure but not many. Boiling a TCM in 192 F ATF was not GM's finest moment in example. 

 

Poorly designed. Poorly made. Not often. Improperly used....yea, allot. Improperly maintained. The days of guys 'knowing' anything about their rides are done. You can't get the neighbor boy anymore to setup your diff's. Could in my day. Required to get yo man card. 

[Jsdirt]

Well Marty, when I see valve springs broken on a sub-100k mile 5.3, ball joints failing at 38k miles, wiped out camshafts,  brake pulsation at FORTY miles, bad PCV valves on a '16 Cruze with 40k on the clock, and timing chain issues on 100k mile Fords, I have to say, that's just s$%t quality. I installed my Ox Locker, and set backlash perfectly, btw.  I use Amsoil Signature Series in everything, and change it way before I should. I grease front ends, change tranny filters, transfer case lube, gear lube, brake fluid, and coolant ... and my stuff STILL fails!

 

My '86 Grand Marquis is getting ready to hit 274K miles any day now. We'll have owned that one for 18 years this coming January. 100% ORIGINAL driveline!! Engine has never been into aside from the timing chain, only because I had to fix a coolant leak, and valve cover gaskets. ORIGINAL tranny - only filter changes! ORIGINAL rear end - only fluid changes and new axle seals 10 years ago. ORIGINAL in-tank electric fuel pump! Now try that one on anything built the past 25 years. ORIGINAL power steering pump. Wife drives that one 64 miles a day all week long for 3 seasons - gets parked every winter, otherwise it would've corroded away to nothing like the rest of them. Now THIS is how vehicles SHOULD be built! 274k, and not even a hint of smoke out the tailpipe, even at startup!  Let alone valve train issues. Will lay down a one-tire fire for as long as you keep your foot in it. Never ran Amsoil in this one, because of the constant rear main seal leak it's always had. That's the worst of it's problems!

 

Same with our '93 Volvo 940 at 200k miles. Still runs strong, shifts nice and fast, and rides beautifully for a small car. And as an added bonus, the Swedes actually used QUALITY metal, paint, and clear coat. We're just starting to get a couple rust blisters through the paint at age 26 - been in New England road salt since DAY ONE! My Silverado started blistering the paint 3 years ago. Just sayin'!!

 

My '94 K1500 had 210k on it when I bought it. I changed the ORIGINAL ball joints, hub bearings, and universal joints at WELL OVER 200k miles!! IMPOSSIBLE today. Just will not happen! I sold that one due to rust - 266k miles on her, still running strong!

 

THIS is why I ****** so much about today's cars! I KNOW how vehicles CAN be built. These are just the ones I've owned, or have owned. How about my '85 Monte Carlo that had been hit HARD front and rear, bent frame, engine overheated severely, and the 200-4R transmission that never had 2nd gear the entire time I owned it. I drove that thing every single day for just shy of 3 years this way! Based on what I put on previous cars, I estimate about 80k miles - HARD miles! Burnouts EVERY time I turned from a stop sign, to the floor everywhere I went. People used to roll up their windows next to me at lights, because of the burnt valve seals - thing would fog an entire city block up at idle! I drove that thing to NYC, mountains of NH, Cape Cod, and a billion circuits around my town, and to work and back. NEVER let me down once! Even towed mine and a couple buddies ATV's an hour north and back every weekend with it. Back in the days of 5-digit odometers - who knows what the actual miles were. If I had to guess, I'd say well over 300k, just based on how worn out EVERYTHING in that car was.

 

I'd love to see just ONE brand in 2020 match the quality of just these vehicles I spoke of here!!! Imagine how much money we'd all save if vehicles lasted like this again! I wonder if we'll ever see it.

Edited October 14, 2020 by Jsdirt

[Jsdirt]

2 hours ago, TXGREEK said:

Not everything today is necessarily junk, just requires quality preventative maintenance. The complaints in these forums are at best minimal when compared to the majority that are very happy with their vehicles which don’t engage in forums.
I don’t have anything really to complain about my truck, nothing that’s pushing me to sell it, I take excellent care of it, extremely reliable and intend on keeping it this way.

All the complaints in these forums are coming from people that either use GM products or cheapest available priced lubricants for extended OCI’s. Todays vehicle manufacturers have an enormous task at hand by trying to appease consumers and the new government regulations which require hundreds of millions of dollars to be invested by manufacturers in order to completely redesign their drivetrain. And then consumers are expecting their vehicles to last no matter what they’re using or doing for intervals.


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I've talked many times with friends that own shops, and they've repaired many of these for the same failures for customers who ran quality synthetics, and changed them religiously at the old 3k mile interval. They just had more miles on them than the guys who never changed the oil, and used the cheapest stuff they could find. 

 

I've got a friend that got stuck with a Ford Explorer with the POS 4.0 overhead cam V6 that Ford tried to modernize, instead of just building a new engine like they should have. He's now on his SECOND timing chain cassette failure on that one in less than 30k miles. Engine has to come out for the rear cassette!! Amazing engineering ...