gm 8 speed vs 10 speed transmission
GM isn’t staffed for all that extra unplanned engineering work so you’re most likely having contract engineering houses doing the work, which means they arn’t as familiar with the products and will most likely make more design errors. You mentioned a new transmission fluid from Mobil. With more and more GM customers buying the 10 speed, this should free up thousands of the good 8 speed majority, right ? That said, the 10-speed transmission laughs in the face of naysayers, empowering both Ford and GM to offer a “have your cake and eat it too” solution who like the performance and efficiency of a CVT, but prefer a more traditional feel. The TCI six-speed version has a few special additions to it. It employs an even deeper First gear ratio of 4.02:1 with tighter gear splits but does not apply an overdrive for subsequent gears. 8AM – 5:30PM Mon-Fri. ©2020 Advanced Transmission. Specifically talking about Chevy's 6 and 8 speed transmissions, the 8 speed seems to constantly be shifting, even when the truck is unloaded. That alone worries me. Running 12.60’s at 111 is a fun ride! Do you know if there’s a service bulletin out about that and does replacing the original fluid with this new fluid help the problem on existing transmissions? The readers on this site are a pretty sharp bunch. Comparing that to our old TH-400 combo, we’d need 5.40:1 rear gear to equal the overall First Gear ratio in the new Corvette. GM has still not found a permanent fix and its almost 5 years now. There are swaps for the 6L80 and 6L90 but they don’t support all the Trailblazers. To get in touch, call either of our locations today or Direct in fifth, with two overdrives. The whole situation is sad.

I’ve complained several times to the dealer and they say it’s “normal”.

What Makes the New C8 Corvette Transmission So Unique? The equipment has been planned far in advice and cannot simply be increased at a moments notice. Yes a seal when I bought it brand new that let the converter drain back. This process is typically measured in years, not months. Let’s say that GM plans to produce 250,000 10L transmissions per year. autoevolution® and the autoevolution® logo are registered trademarks.

But wouldn’t those funds have been well-spent when compared to the gobs of money GM will probably end up spending in legal fees to defend itself (and potentially pay out on the class action), while also causing reputation-based damage as a result of customer dissatisfaction in its bread-and-butter products, thereby potentially losing customers for life? When I start it, and put in into ANY gear, it does not move, at all. Hey Scott3 you are one stupid moron, go away. Just swap the bad ones out until you get a good one, DONE, FIXED !!! #5 the 500 pound gorilla in the room was also that being this appears to be a moisture in the fluid issue the same issue could be in the future of the 10 speed too.

What is your recomendation for towing?


Subscribe to GM Authority for 24/7 GM news coverage. We welcome your submissions. General Motors and Ford It has factory size tires 275/55/20. Our simulations reveal that this is worth anywhere from 0.10 to perhaps 0.15-second in a quarter-mile comparison between a stock 4L80E and a TCI Six-Speed. towards fuel

This now is stored up by the law firm as they take it upon themselves to represent the owners and get GM to settle as it is cheaper to pay $20 million to settle vs $50 million towin. All you need is to reprogram/replace the ECU and BCM. In the west they are much higher and thankfully so. It’s good for a 12.69 @ 111 mph in cool dry weather.I go down the track with the lock up switch off. In fact, GM was recently slapped with a class action lawsuit over the 8-speed gearbox. The Choice Is Clear! The internal clutches of the 10-speed transmission are operated by two different hydraulic pumps.

To play armchair quarterback for a quick minute, The General should have bitten the bullet and replaced the GM 8-speed automatic transmission in any applicable vehicles with the new 10-speed unit as soon as the new 10-speed was launched, no matter if the model was due for an update, refresh, or overhaul, or not. © 2008-2020 SoftNews Net SRL.All rights reserved. There is a fierce transmission fluid pressure. or shaking. OneControl RV Tech Revolution: Run Your Entire Camper With Your Phone, Gen-Y Executive Torsion Hitch Means Stress-Free Heavy-Duty RV Towing (Video). My problem with the 4L80E is it was always a workhorse and in the past 25-30 years trucks have gotten much quicker and versatile. Hi Jeff, Design Backstory.

To this point mine shifts great and has been a good transmission, The majority of owners are also like my experience. Reducing both friction and risk of hydraulic pump overload, the fluid (combined with a new generation of filter) plays a key role in regulating temperature and efficiency. GM and Ford’s 10-speed transmission is guided by six Electrically driven, it allows idle-stop capability and, combined, the two pumps optimize efficiency through temperature and transmission fluid pressure. hydraulic pump surplus. not forced to unlock. Ultimately, the 10-speed transmission is designed to Operating as overdrive gears, the last three gears serve to improve acceleration, fuel economy and towing performance. If you are having an issue go for the lemon law and not feed some greedy law firm that really has no care for you. Manual/Standard Transmission Repair & Service, Advanced Transmission Center(Northwest Metro Denver), Advanced Transmission Center(Southwest Metro Denver). They are giving it a 10-speed transmission as opposed to the 8-speed that it currently has. and 10-speed transmission. It would let the fluid drain out of the converter if it sat a couple says. My 8speed is very smooth and the combination is plenty strong. And its getting harder and harder to do each day !! for the 9-speed transaxle. automatic, the 10-speed delivers incomparable performance on and off the track…

Respectively, the ratios for each are .854 (8th) .689 (9th) and .636 (10th). Save my name, email, and website in this browser for the next time I comment. GM’s customer service is lackluster and their newest and greatest fluid fix hasn’t completely solved anything, according to actual owners of the vehicles. showing some of these symptoms described. electronic components such as solenoids. I cannot wait to drive the 2018 model with the 10-speed.

Mercon ULV, a transmission fluid specially designed for the 10-speed transmission, follows the trend of ever-thinning viscosity experienced by transmission fluids and engine oils across the board. On the other hand many who have no issue don’t post I am all good either. Under a load it goes away. The second pump stands in for a hydraulic accumulator while taking up less space overall and proving more reliable. Thanks, what you describe regarding the first to second shift is what mine is doing.

Still why are only a smaller number being effected vs most not being effected?

I completely agree with 7 gears being enough. While pre-emptive servicing would be great unfortunately the dealer is caught in the middle which sux. So if there are any possible ways to upgrade the RPM Level 6 4L70E in my 416 CI Trailblazer, the 4L80E in my Silverado with a LS2 with heavily worked and milled 243s, Ported and polished Fast LSXRT 102mm intake, and the Caprice PPV I am looking for the right one.

Thanks Jeff. I use this vehicle to tow a 20 ft 10k trailer that I use to carry a 5500lb tractor.


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