![]() Camaro guys are a drop in the bucket, but trucks rule the roost. yml file like this: version: 3.8 services: postgres: image: postgres:13 restart: always environment: - POSTGRESUSERprismapg. My father-in-law just bought a new Silverado with the A8 Can't wait for the shit to really hit the fan when all those guys who are having the same issues get organized. I can't believe there is not any lawyers on this forum who own an A8 and can't start a class action suit. Now hearing no replacements until 2019, I'm betting I get an email this week saying it was flushed, no new TC, and to come get it. Got email yesterday that said mine was going straight to TC replacement, but the TC was on national backorder and would be at least a week. GM issued a Technical Service Bulletin TSB 18-NA-355, with updates that address the torque converter clutch (TCC) shudder conditions. Was told to expect a flush on mine then bring it back in 200 miles if problem persisted. Service writer next to the noob writing me up said he had handled plenty of these. A copy the GM service bulletin 18-NA-355 can be seen online. I took mine in last Wednesday with just under 15K on the odo because a part failed on the convertible top for the 2nd time (first time was after 2 months ownership, replacement went 18). NA-355, the latest update addresses torque converter clutch (TCC) shudder conditions on 8L45 and. I began researching this issue and learned that gm issued a service bulletin ( 18-na-355 ), and the problem is a 'known issue'. Under my seat, ' it felt like I was going over rumble strips. time to start scoping out legal options.Įnough of this BS, time to hold GM's feet to the fire. A few days later I began noticing a distinctive shutter between 40 -70 mph. If the shudder occurs above 64 km/h (40 mp/h) or with the TCC commanded on TSB 17-NA-317 should be reviewed.I have made contact with a few lawyers. A minimum of 200 miles (322 km) needs to be driven after the drain and fill to confirm the repair. This problem currently affects 11 different models across 3 different OEM manufacturers between the model years 20. The slip speed will improve after additional mileage is accumulated. General Motors has issued several t echnical service bulletins pertaining to torque converter clutch shudder issues in two of their 8-Speed transmis - sions 8L45 & the 8L90. Note the improvement in slip speed after immediately after the fluid exchange procedure. Also, drain and refill the transmission using DEXRON VI as per SI. Bulletin No.: 19-NA-121 June, 2019 This is an example of TCC slip speed on a 5.3 (L84) truck. If confirmed to be a TCC shudder while monitoring TCC slip speed during the concern, or the concern goes away when TCC is commanded on with the scan tool and the concern is present at 64 km/h (40 mp/h) or below during the gear shift, reprogram the Transmission Control Module (TCM) with the latest calibrations including following the procedure in SI that requires to perform Service Fast Learn (SFL) after programming TCM. This condition may be caused by possible torque converter clutch (TCC) shudder on reapply after a shift. Summary: Some customers may comment on a slight shudder felt during gear shift at slow speeds below 64 km/h (40 mp/h) with light throttle application. Anyone done the 18-NA-355 TSB Themselves I am way out of warranty and had the first TSB done, but not the final 855 tsb with the new Mobil1 LV fluid (19417577) and machine flush. Chevrolet TSB 18-NA-091 Make: Chevrolet Number: 18-NA-091 Title: Slight Shudder Felt During Gear Shift at Slow Speeds Below 64 km/h (40 mp/h) with Light Throttle Application Date: Models:
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