That case involves 8L vehicles made after March 1, 2019, through model year 2022, when GM replaced the automatic transmission fluid that caused the shudder problem.
In fact, the Hydra-Matic 8L90 and 8L45 transmissions at the root of the problem have been used in 15 different GM products since 2014 – including.
. General Motors will face a class action lawsuit related to its 8L45 and 8L90 eight-speed automatic transmissions, which were installed in at least 800. .
Fill the transmission with 7 liters of Synthetic LV ATF HP fluid following Service Information for your vehicle.
. Years and truck models with transmission problems include 2015-2019 Silverado, 2017-2019 Colorado, 2015-2019 GMC Sierra,. .
Jan 8, 2021 · class=" fc-falcon">One of the first stories I worked on involved the Chevy Silverado, and the biggest issue I found pertained to the GM 8-speed transmission. Lower the vehicle keeping the wheels off the.
Aug 13, 2019 · class=" fc-falcon">According to TSB (Technical Service Bulletin) 18-NA-355, the latest update addresses “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90 ” eight-speed automatic transmissions.
. Get reliability information for the 2019 Chevrolet Silverado 1500 from Consumer Reports,.
: 19-NA-153 Service Procedure 1. This is most likely to occur under light throttle conditions. Customers that complain of shuddering and harsh shifting characteristics in the 8-speed GM transmissions are recommended for a trans fluid flush. . 5360216 2.
Inspect the magnet in the pan for excessive metal accumulation. .
• If there was no signs of metal in the oil pan, install the pan and no further work is required.
Though not specifically connected to automatic transmission problems, there was a recall for 2020 Silverado pickups over driveshaft issues.