10-29-2009, 12:21 PM | #1 |
Drives: 2SS/RS, Black, CGM, Black int. Join Date: May 2009
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Bulletin re AFM
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!!
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Last edited by Mike's LazruSS; 10-29-2009 at 01:51 PM. |
10-29-2009, 12:51 PM | #2 | ||
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the dealer wont permanently disable AFM.
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10-29-2009, 01:07 PM | #3 |
Drives: DD- 15' Chevy SS Sedan Join Date: Oct 2009
Location: Ft. Lauderdale
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the dealer CANT disable AFM
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10-29-2009, 01:24 PM | #4 |
2G1FK1EJ6-9
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I have no problem with AFM and I swear I cannot hear it.
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10-29-2009, 01:52 PM | #5 |
Drives: 2SS/RS, Black, CGM, Black int. Join Date: May 2009
Location: Mid-Michigan
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Exactly. So why does the GM bulletin tell him to do so (disable the AFM)?
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10-29-2009, 02:43 PM | #6 |
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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?
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10-29-2009, 03:08 PM | #7 |
Drives: '04 GTO, '00 Z28, '95 Z28 Join Date: Mar 2009
Location: Austin, TX
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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.
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10-29-2009, 03:17 PM | #8 |
Drives: 2SS/RS, Black, CGM, Black int. Join Date: May 2009
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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!
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10-29-2009, 03:27 PM | #9 |
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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, 05:11 PM | #10 | |
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10-29-2009, 06:48 PM | #11 |
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I'd sell my car if it sounded like a ricer.
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10-29-2009, 07:36 PM | #12 |
Drives: 2010 VR 2SS A6 Join Date: Jul 2009
Location: Beebe AR
Posts: 193
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I have the muffler delete and don't hear it at all.
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10-29-2009, 08:23 PM | #13 |
Drives: 2 64 1/2 coupes and 66 fastbac Join Date: Aug 2009
Location: LA
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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.
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10-30-2009, 10:00 AM | #14 |
Drives: SIM RS/SS L99 Join Date: Sep 2009
Location: Sunshine State
Posts: 207
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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.
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