gm 8 speed transmission problems

NHTSA Complaints . Finally GM quietly admitted defeat and introduced the 6L80E 6 speed in the late 2000’s. Dozens of complaints have been submitted by drivers to the National Highway Traffic Safety Administration over these transmission problems. Ten years before GM would have considered a transmission of it’s capabilities to be a 3/4 ton or 1 ton transmission. It only does this after sitting for 8-10 hours (or more).

Quart bottles, which can be identified by a new blue banner across the front of the bottle (Fig. Claims handled on contingency with no payment required from consumer.

Overall the 10 speed is much better than my 2015 8 speed (BY A LARGE MARGIN!) But there are the occasional clunky feeling downshifts. Great site and everyone is super helpful. The transmission pairs to cars on a rear-wheel-drive architecture, meaning owners of GM’s sports cars, luxury sedans, trucks, and SUVs have the 8-speed automatic transmission in question. Love these forums! If you are driving one of the hundreds of thousands of vehicles recently manufactured by General Motors, LLC (“GM”) you may be at risk due to a dangerously defective transmission. GMC transmission review . If someone with limited knowledge on how the transmission operates has worked on it, they may have actually made the problems worse. Cracked 2-3-4-6-8 Clutch Piston Program Description: Certain 2016 model year Cadillac CT6, Chevrolet Silverado LD and GMC Sierra LD vehicles, equipped with an 8-Speed Automatic Transmission, may have a condition in which the 2-3-4-6-8 Clutch Piston is out of specification. GM program #2044120 date issued Jun 21,2016. Now we have the 8L90E with two OD gears, a deep 1st, and intended to tow up to 1x,xxx-lbs on a Max Tow equipped truck behind a 355-hp engine.

B. TIP: Mobil 1 Synthetic LV ATF HP transmission fluid is required for all 8-speed transmission repairs regardless of the repair being completed. GM has issued 13 technical service bulletins related to shifting issues alone, but “none of the suggested repairs have remedied the problem,” the lawsuit says. Site Terms, 2018 gm 8 speed transmission problems, recall, class action, 2018 gmc 8 speed transmission problems C5= 4-5-6-7-8- Reverse. and the two 6 speeds in my 2017 and 2016; I feel like this transmission has the ability to be very good. 12), will be limited to 20 cases/120 quarts per dealer per week during the initial launch of the new product. If an 8L90/8L45 comes into your shop with shift related issues you always need to start with some important information from the customer, primarily has anyone worked on this transmission?! Hello everyone!

Program title: Cracked 2-3-4-6-8 Clutch Piston Program description: Certain 2016 model year Cadillac CT6, Chevrolet Silverado LD and GMC Sierra LD vehicles, equipped with an 8-speed automatic transmission, may have a condition in which the 2-3-4-6-8 Clutch Piston is out of specification. Parts exhibited a crack condition as cast after machining. By Brian T. Murray, Esq. It feels like the transmission has a line pressure or fluid problem. CALL (973) 598-1980 for a Free Consultation.

Chevrolet Colorado Service Bulletin . I … I wanted to post up my own experience with my 8 speed transmission in my 2015 SILVERADO HIGH COUNTRY 6.2L 8 SPEED 8L90 I bought the truck brand new in July 2015. Manufactured date of April 2015. It's now got 1,100 miles, and it seems like the problem is getting worse (it now takes about 4-5 seconds for the vehicle to move after shifted into drive or reverse, after sitting for 10+ hours). In fact, it could be excellent after some miles.