Bulletin re AFM - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mike's LazruSS · 10-29-2009, 12:21 PM

GM has release a document regarding the "Droan" (Geez, I wish they at least knew how to SPELL it if they don't know how to FIX it). But I am puzzled. The bulletin tells the dealer to "manually shift the transmission to disable AFM" when most of us who have the problem believe AFM remains active whether we are in "D" OR "M." I know I have the problem either way. I think it is clear after reading many threads and posts on this, that some cars are badly affected, and some have little if any problem at all. Anyone have any insight on the instruction to have the dealer disable the AFM and re-evaluate? If I though my dealer could disable AFM, I'd just have him leave it disabled!!

*CamaroSpike23* · 10-29-2009, 12:51 PM

the dealer wont permanently disable AFM.

kelleyperformance · 10-29-2009, 01:07 PM

the dealer CANT disable AFM

wrek · 10-29-2009, 01:24 PM

I have no problem with AFM and I swear I cannot hear it.

Mike's LazruSS · 10-29-2009, 01:52 PM

Exactly. So why does the GM bulletin tell him to do so (disable the AFM)?

coolman · 10-29-2009, 02:43 PM

I don't have the l99 but I've had cars with afm and I never seen one that stays active when you switch into manual. I had I chrysler 300c and I would drive in manual just so It wouldn't turn on. Is their an icon that tells you when it's turning on and off. The 300 say fuel saver mode when it's dropping back?

MikeZ28 · 10-29-2009, 03:08 PM

Somebody in a different thread said that if you are in S6, and you use the paddles to kick it down to 5th and then back to 6 again, it will disable the AFM. I have no idea if that's true, but it's what at least two members have said.

Mike's LazruSS · 10-29-2009, 03:17 PM

Have tried that repeatedly in my car at multiple speeds, and it does not work in my car. Trust me, in my car, you can tell!

speedster · 10-29-2009, 03:27 PM

I'm with Mike above. On the SST Camaro, the "drone" was almost undetectable with the stock exhaust. The minute I switched to the Stainless Works exhaust, it was a major annoyance when the AFM kicked in. Sounded like a rice-burner with a megaphone pipe. I put in in every mode possible ( I usually manually paddle shifted it anyway) and it would always revert back to AFM in the higher gears and/or at lower engine RPMs with no/low load. :(

camarotoofast · 10-29-2009, 05:11 PM

Quote:

Originally Posted by speedster

I'm with Mike above. On the SST Camaro, the "drone" was almost undetectable with the stock exhaust. The minute I switched to the Stainless Works exhaust, it was a major annoyance when the AFM kicked in. Sounded like a rice-burner with a megaphone pipe. I put in in every mode possible ( I usually manually paddle shifted it anyway) and it would always revert back to AFM in the higher gears and/or at lower engine RPMs with no/low load. :(

Mine is the same way with stainless works. When iam in 3rd in manual mode it gets real ricey sounding but S.W. sounds good when AFM is not on

SleepWarz · 10-29-2009, 06:48 PM

I'd sell my car if it sounded like a ricer.

Days75 · 10-29-2009, 07:36 PM

I have the muffler delete and don't hear it at all.

Kamaro4437 · 10-29-2009, 08:23 PM

I have had no issues or noticed anything at all no change in motor at all from cruising to haulin ass i hear no differences.

SS-screamer · 10-30-2009, 10:00 AM

Mine sounds terrible in 4 cylinder mode and makes a burping noise when it kicks back into 8 cyl mode. Mine stays active in all modes UNLESS I down shift in manual; then it stays off. I bought an auto to drive an auto not feel forced to manually shift b/c of how bad the car sounds.

10-29-2009, 01:07 PM	#3
kelleyperformance Drives: DD- 15' Chevy SS Sedan Join Date: Oct 2009 Location: Ft. Lauderdale Posts: 233	the dealer CANT disable AFM __________________

10-29-2009, 01:52 PM	#5
Mike's LazruSS Drives: 2SS/RS, Black, CGM, Black int. Join Date: May 2009 Location: Mid-Michigan Posts: 52	Exactly. So why does the GM bulletin tell him to do so (disable the AFM)? __________________

10-29-2009, 03:17 PM	#8
Mike's LazruSS Drives: 2SS/RS, Black, CGM, Black int. Join Date: May 2009 Location: Mid-Michigan Posts: 52	Have tried that repeatedly in my car at multiple speeds, and it does not work in my car. Trust me, in my car, you can tell! __________________

10-29-2009, 03:27 PM	#9
speedster SST... Drives: SST Camaro 2010 Join Date: Oct 2008 Location: East Coast of Florida Posts: 5,927 View My Garage	I'm with Mike above. On the SST Camaro, the "drone" was almost undetectable with the stock exhaust. The minute I switched to the Stainless Works exhaust, it was a major annoyance when the AFM kicked in. Sounded like a rice-burner with a megaphone pipe. I put in in every mode possible ( I usually manually paddle shifted it anyway) and it would always revert back to AFM in the higher gears and/or at lower engine RPMs with no/low load. :( __________________

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10-29-2009, 01:24 PM	#4
wrek 2G1FK1EJ6-9 Drives: 2010 Camaro 2SS RS Transformer Join Date: Oct 2009 Location: Pompano Beach, FL Posts: 664 View My Garage	I have no problem with AFM and I swear I cannot hear it.

10-29-2009, 02:43 PM	#6
coolman Guest Join Date: Jun 2009 Location: PA Posts: 4,812	I don't have the l99 but I've had cars with afm and I never seen one that stays active when you switch into manual. I had I chrysler 300c and I would drive in manual just so It wouldn't turn on. Is their an icon that tells you when it's turning on and off. The 300 say fuel saver mode when it's dropping back?

10-29-2009, 03:08 PM	#7
MikeZ28 Drives: '04 GTO, '00 Z28, '95 Z28 Join Date: Mar 2009 Location: Austin, TX Posts: 225	Somebody in a different thread said that if you are in S6, and you use the paddles to kick it down to 5th and then back to 6 again, it will disable the AFM. I have no idea if that's true, but it's what at least two members have said.

10-29-2009, 06:48 PM	#11
SleepWarz Banned Drives: 1991 New Yorker, 69 Tbird, ABM2SSRS Join Date: May 2009 Location: BC Canada Posts: 2,248 View My Garage	I'd sell my car if it sounded like a ricer.

10-29-2009, 07:36 PM	#12
Days75 Drives: 2010 VR 2SS A6 Join Date: Jul 2009 Location: Beebe AR Posts: 193	I have the muffler delete and don't hear it at all.

10-29-2009, 08:23 PM	#13
Kamaro4437 Drives: 2 64 1/2 coupes and 66 fastbac Join Date: Aug 2009 Location: LA Posts: 70	I have had no issues or noticed anything at all no change in motor at all from cruising to haulin ass i hear no differences.

10-30-2009, 10:00 AM	#14
SS-screamer Drives: SIM RS/SS L99 Join Date: Sep 2009 Location: Sunshine State Posts: 207	Mine sounds terrible in 4 cylinder mode and makes a burping noise when it kicks back into 8 cyl mode. Mine stays active in all modes UNLESS I down shift in manual; then it stays off. I bought an auto to drive an auto not feel forced to manually shift b/c of how bad the car sounds.