04-13-2020, 11:39 AM | #827 |
Drives: 2018 2SS M6 Hot Wheels Camaro Join Date: Mar 2017
Location: MA
Posts: 587
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That is very good news. Thank you for the information! Much appreciated. 👍🏻
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2018 2SS M6 Hot Wheels Camaro loaded (Moonroof, Magnetic Ride Control, NPP, etc…)
Previous cars: 2017 1SS Nightfall Gray Metallic w/A8 and NPP 1988 IROC-Z (tons of mods), 1995 Z28, 1998 Z28, 2006 GTO, 2010 Camaro 1SS, 2015 Subaru STI, a couple Acuras and multiple Jeeps. |
08-27-2020, 10:11 PM | #828 |
Drives: 2018 Camaro 2SS Join Date: Aug 2020
Location: Chicago
Posts: 2
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Summer 2020 Vibes
Just picked up a used 2018 2SS automatic with 19k miles (got a great deal) but unfortunately didn't test drive the car long enough to feel the infamous shudder. Was driving it home on the highway when I felt it. Man it was a bad feeling in the pit of my stomach
Good news is my car still has 2 years of power train warranty and I took it to my local dealer and they did the trans fluid flush and replace. Bulletin 18-na-355. Since then I've put around 250 miles on the car and have not experienced any vibration, shudder, or rumble strip feeling. Very very rare but I get a little trans slip while accelerating hard and the car downshifts - this could be something else and it doesn't happen enough for me to be concerned. Will update if the shudder ever returns. May look into extending my warranty in case I ever need a new torque converter. |
08-28-2020, 10:07 AM | #829 | |
Sure, why not?
Drives: 2016 Camaro 2SS, Jeep JKU Rubicon Join Date: Mar 2015
Location: SE Mass
Posts: 1,538
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Quote:
My thinking is that if my 8-speed starts acting up after my powertrain warranty is over, I will find a good transmission shop favored by enthusiasts and ask them to re-tune it. There have been enough posts on this site about people who have had excellent results doing that, and I don't think it is terribly expensive. The dealership technicians are focused entirely on factory designed specifications, maintenance, and repairs. Their expertise does not extend into going beyond what GM says. The places that tune automatic transmissions know how to do these things. They can alter the tables that control how the transmission behaves. Anyway, that's my plan.
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04-17-2021, 12:47 AM | #830 |
3 Camaro man!
Drives: Camaro 2.0 T Join Date: Jun 2014
Location: Shenzhen, China
Posts: 41
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My 2018 2.0T A8 did this just after 2000 miles so I don't but the GM story the oil is the problem. My post is under ACEPA. I purchased my car in China while at the same time my friend bought her Camaro the same day and never had this problem. Still trying to resolve in a foreign land. I put 400KM on the car before I could stop and flush and replace the oil. One thing I noticed is the transmission oil I removed was more like red oil. The new special mobil synthetic oils looks more like red water than oil.
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04-17-2021, 12:52 AM | #831 |
3 Camaro man!
Drives: Camaro 2.0 T Join Date: Jun 2014
Location: Shenzhen, China
Posts: 41
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Frustrating I feel your pain with this issue I thought my 2018 2.0T was amazing the ride, the power, the looks and to be cruising at 50mph and low throttle and have the vibration start was truly heart breaking.
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10-06-2023, 05:17 AM | #832 |
Drives: 2012 chevy camaro ls Join Date: Jun 2023
Location: Oklahoma
Posts: 3
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I would definitely look at your drive shaft couplers.. or your carrier bearing..or mounts and alignment on everything before you go after the transmission
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10-27-2023, 10:04 AM | #833 |
Drives: 2024 SS Convertible CE Join Date: Sep 2017
Location: Florida
Posts: 6
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A8 transmission problems
There is a current class action lawsuit against GM for transmission problems on the A8 transmission. Call the law office of. Cohen Milstein at (561) 515-1400.
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