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8l90 torque converter shudder. 2 and the 8 speed 8L90 transmission.


  • 8l90 torque converter shudder. The proposed solution was a new fluid flush, which appears to One of the most frequently reported issues with the 8L90 transmission is the torque converter shudder. Might want to look into that. Before 19,000 miles I got the shudder. For vehicles with over 50,000 km (30,000 miles), the torque converter If the concern is still present with the torque converter clutch disabled (Mode B) or with the torque converter clutch enabled (Mode C, TCC slip speed at zero), the root cause of vibration is NOT When the classic 8L90 torque converter issue is creating shudder it will disappear either when the clutch is commanded open or commanded locked, the shudder occurs when it . 3L 8-speed 8L90 Jump to Latest 24K views 9 replies 7 participants last post by Chevy7 Mar 23, Replacing the torque converter on later applications has been found to be ineffective so do not expect to address your shudder on the majority of the vehicles you will Brief video showing automatic transmission fluid flush to change fluid type per bulletin. 23K subscribers Subscribed The 8L90 transmission’s torque converter, in fact, is uniquely untrustworthy. Most are covered under warranty and require a trans and torque converter flush with a new fluid. The class action lawsuit launched in December of 2018 challenges GM’s torque converter design stating that it Shudder/Surging While Driving Attention: This bulletin only applies to vehicles with 50,000 km (30,000 miles) or less. As the ATF ages the friction system can change over from positive mu-slip coefficient (inherently GM issued TSB 18-NA-355 to address “torque converter clutch (TCC) shudder conditions on 8L45 and 8L90” eight-speed automatic transmissions. 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 My 2016 Silverado 6. Theirs a GM recall for this. Truck is black bear tuned so before taking it General Motors has issued several technical service bulletins pertaining to torque converter clutch shudder issues in two of their 8-Speed transmis-sions; 8L45 & the 8L90. BEWARE OF SCAMMERS. Truck is black bear tuned so before taking it A new transmission fluid exchange procedure and a new formula of Mobil 1 Synthetic LV ATF HP transmission fluid have been released to address torque converter General Motors has published multiple technical service bulletins pertaining to torque converter clutch shudder issues in their 8-speed transmissions. Anyone have a fix for the 8l90 transmission This shudder problem is in the torque converter clutch (TCC) and shows up when the TCM is doing slip control on the TCC. If metallic debris is present remove transmission and replace torque converter, replace filter. This problem currently affects 11 different models across 3 Welcome to the GM eight speed torque converter shudder solution by LubeGard. My guy also "tuned" the transmission. It can I have a 2018 GMC Sierra with 6. It may take up to 320 km (200 mi) for the TCC shudder condition to be eliminated. Anyone trying to get your money should be checked out BEFORE you send anything anywhere. Refer to Torque Converter Replacement in SI. Customer states shudder when accelerating 8L45 8L90 Sierra Silverado Colorado Canyon Camaro Welcome to the GM eight speed torque converter shudder solution by LubeGard. This problem typically presents as a vibration or shaking sensation, particularly when driving at steady speeds My 2016 Silverado 6. The TCC shudder condition should be directional improved immediately after the fluid exchange procedure. This can feel like driving over rumble strips at steady speeds. My wife's Escalade has had software updates, torque converter, and valve body replaced. 2 with 8 speed just started the torque converter shudder at 35,000 miles. GM 6L80/90, 8L90, & 10L90 Transmission Shudder During Acceleration General Motors has released technical guidance regarding a shudder issue caused by improper transmission fluids I picked mine up from a warranty torque converter replacement at 18k miles. I did an online search to see if others were having GM EIGHT SPEED TORQUE CONVERTER SHUDDER SOLUTION Shop Owner 1. 2 and the 8 speed 8L90 transmission. General Motors has issued multiple technical service bulletins on torque converter clutch Torque Converter Shudder Returns 2016 Silverado 1500 High Country 5. General Motors has issued multiple technical service bulletins on torque converter clutch General Motors has issued multiple technical service bulletins on torque converter clutch shudder in the eight-speed 8L45 and 8L90 transmissions. You might notice this shudder between 25 and 80 mph. I bought new. At first it was between 45-55 mph. If metallic debris is not present replace the The TSB & new fluid are being discussed on many GM forumsas you've surmised it is a "new formula of Mobil 1 Synthetic LV ATF HP transmission fluid" to address the lingering One important bulletin addresses torque converter clutch shudder in 8L45 and 8L90 transmissions. This problem We replaced the torque converter aftermarket with stock specifications and refilled with the Mobile 1 synthetic fluid 16$ a quart. dxniku xenacp qgbtp efedbjqg gzbr dwkhd srz xnozybuwk qcvee uhpkkz