03-07-2022, 02:06 PM | #1 |
Drives: 2017 Camaro 2SS Convertible Join Date: Mar 2022
Location: San Diego
Posts: 2
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Hola
Hola
Last edited by sandiegocamaro; 05-24-2022 at 05:26 PM. |
03-07-2022, 02:13 PM | #2 |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,499
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You don't want to keep driving with the shudder.
The friction material on torque converter clutches starts eroding as the quality of the (unfortunately hygroscopic) original fluid degrades over time. Once this process starts, it naturally accelerates itself until the torque converter becomes unusable and needs to be replaced, and that job will not cost a mere $525. Get the flush done (based on GM TSB 18-NA-355) as soon as possible, warranty or not. From your description it seems you may still be able to save the torque converter.
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
03-07-2022, 03:18 PM | #3 | ||
2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: San Diego (North County), CA
Posts: 2,984
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Quote:
Quote:
Where in San Diego are you?
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2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting
Added after delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph... |
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03-07-2022, 10:16 PM | #4 |
Drives: 2017 Camaro 2SS Convertible Join Date: Mar 2022
Location: San Diego
Posts: 2
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03-07-2022, 11:17 PM | #5 |
2020 Shadow Gray 2SS
Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019
Location: San Diego (North County), CA
Posts: 2,984
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If you ever want to meet up, let me know, I'm in North County...
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2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting
Added after delivery: - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph... |
03-08-2022, 07:41 AM | #6 |
Drives: 2017 Camaro SS 50th Anniversary Join Date: Apr 2021
Location: Missouri
Posts: 927
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Im dubious whether the flush will be a permanent cure at this point with 35k miles. It may or may not be. Id say 50/50 chance. It may fix for a while, but it may return after 5, 10, 20k miles.
I have a TC that exhibits/exhibited the shudder before and after a flush. Fixed for about 10k miles, then returned. I was able to fix permanently with retuning the tcm. The stock tcm config expects some small degree of tc clutch slip (clutch not locked super tight). This is supposedly for noise/vibration/harshness concerns in V4 mode. The slip is supposedly to absorb the more staccato rhythm in V4 mode. However it has trouble modulating the slip due to the fluid issues, and this is what causes the shudder... more or less. Trying to condense a lot of info into something readable here. I applied a fix via a tcm config change to reduce that expected slip to zero, and have not had any issues since. However ive also got AFM disabled, so not sure what that might feel like in V4 mode. With that said, getting your tcm unlocked and retuned... doing all that yourself will set you back prob a grand or so if you include the cost of the HP Tuners device, tcm unlock service, and credits. In addition, getting the old fluid out is something you should do regardless, so go ahead and flush. Just wanted to give some options should the flush not be a perm fix. Lmk if you have questions. If you want to dig in, there are options.
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2017 50th Anniversary Edition | P1X Stage 2
DSX Aux Low Side | LT4 high side | Flex Fuel TooHighPsi Port Injection (installed & tuning) CircleD 3K Stall | QA1 CF Driveshaft Forgestar F14 Drag 17x10 NT555R2 305/45/17 Rear Forgestar F14 18x8 NT555G2 235/50/18 Front 10.84@131 w/4.13" pulley ??.??@??? w/3.7" pulley (installed & tuning) |
03-08-2022, 08:13 AM | #7 | |
Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017
Location: East Tennessee
Posts: 11,499
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Quote:
I wonder if someone put the old fluid in one of these newer auto SS cars, would the A10 start shuddering just the same or not Of course we'll never know, the old fluid stock must have been used up already, and who would let their torque converter be damaged for such an experiment anyway, but it'd be interesting nevertheless.
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2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune 1100 - 1/30/18 | 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 | 3800 - 2/26/18 4300 - 2/27/18 | 4B00 - 3/01/18 4200 - 3/05/18 | 4800 - 3/14/18 5000 - 3/16/18 | 6000 - 3/19/18 |
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03-08-2022, 08:25 AM | #8 | |
Drives: 2017 Camaro 2SS A8 Join Date: Aug 2018
Location: Petersham MA
Posts: 4,701
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Quote:
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2017 Chevy Camaro 2SS A8 Whipple 3.0, Mast Black Label heads, Fore triple in-tank pumps, 112mm TB, LPE +52% injectors, LPE BB HPFP, 15” conversion 1059 WHP/944 WTQ, 9.48@150
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03-08-2022, 08:43 AM | #9 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,764
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I bought my SS with 900mi back in 2017. At 1500mi I noticed what I believe was shudder. I tuned the TCM right away and haven't had any shudder since. Currently at just under 16k miles which might not sound like a lot but I have a bunch of Dragy pulls logged. Imo the trans tuning makes the biggest difference. The "updated" fluid is just a bunch of hyperbole that was a cheap band-aid fix so GM didn't have to recall thousands of vehicles.
One thing I did notice was the TCC slip tables on the 10l90 found in the ZL1 are nearly identical to the 10l80 and 8l90 even though the ZL1 has AFM disabled. So either the converter and/or A10 trans has been redesigned to better handle the TCC slip. The TCC slip tables are not there solely for AFM, I believe they also help smooth the transition from TCC lock up to unlocked on a downshift. With the slip tables zero'd out the trans downshifts a bit rougher. It doesn't bother me... Moral of the story...I suggest replacing the fluid and tuning the TCM if you plan on keeping the car. If not just get the fluid changed and it should keep it away for a while.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
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2017 camaro ss, a8 transmission, a8 transmission shudder |
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