10-10-2018, 08:56 AM | #15 |
Drives: 2017 ZL1 - Nightfall Gray Metallic Join Date: May 2017
Location: Fremont, CA
Posts: 30
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OP/all - I’d found this thread bc havjng the same issue on track only (w some streetvexamples but less profound. Was just posted in a Camaro 1LE FB group. Can anyone post the full TSB? I posted this in the thread above as well.
### I’d like to share a little message brought to me by someone smarter than myself. LT4 guys, pay attention. If you’re anywhere near the Detroit area, let me know, we’ll be doing a bunch of them. Alan, FYI… ICHE purge tool bulletin which is published to dealers - 18-NA-291 TSB You will want to perform this to all Camaro w/LT4’s. (including your car) SO, this bulletin is put out to get air out of the stock intercooler circuit. If any aeration has occurred, intercooler temps could spike causing premature spark retardation. |
10-10-2018, 09:35 AM | #16 | |||
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10-10-2018, 10:35 AM | #17 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,800
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Us A8 SS guys hold the gear by using manual mode then move the shifter over to auto after going wot all the time. It works well and I am highly doubtful it is the cause of your issue. Just typical GM automatic transmission anamolies.
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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 |
10-10-2018, 08:34 PM | #18 |
Drives: '21 ZLE A10 Join Date: May 2012
Location: Mechanicsville, VA
Posts: 6,808
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fluid level is likely too high as well...not a problem until pushed at a road course environment
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'21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60'
'17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold) |
10-10-2018, 10:00 PM | #19 |
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I ran a road course on Friday and experienced some shifting issues as well. However, it wasn't what was documented here. I'm combing through the videos to see if it was caught. Mine was more of a harsh shift and I'm guessing it was around 4th gear. I've had the fluid level checked and the telemetry shows no overheating (or anything even close) from all the runs I did. I'll post the video if it shows anything. Haven't seen anything like it under street conditions. By the way I was shifting the transmission manually via the paddles.
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10-11-2018, 06:59 AM | #20 | |
Drives: 2017 ZL1 Camaro Join Date: May 2018
Location: Iowa
Posts: 100
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I did have my car at a local Chevy dealership as I requested they checked the fluid level of the trans and told me it was fine. I also requested the track alignment and provided them with a photo copy of the specs from the performance supplement page of the manual. The crooks didn't break a single alignment bolt loose and charged me for an alignment. I didn't find this out until after my first track day as I chewed up the outer edge of my tires from no negative chamber. Point is I don't trust the dealer that did the work as they screwed me on the alignment and probably did the same on the trans fluid level check. |
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10-11-2018, 11:41 AM | #21 | |
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10-11-2018, 12:17 PM | #22 |
Drives: 2016 Camaro 2SS Join Date: Apr 2017
Location: Stansbury Park, Utah
Posts: 1,092
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That's how I do it. 50 MPH roll, manually put into 2nd gear. Punch it and slap it over into auto immediately.
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2016 2SS, MRC, NPP, A8. Procharger P-1X,Stage II,std bypass, 3.9, Alky Meth - 10.84 @129 - DA+2000
New Mods - GPI drop ins, Kooks 2", LT4 fueling, Cam, Circle D Converter, 3.5 pulley & dual nozzle meth. |
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