Jump to content

Search the Community

Showing results for tags '8 spd'.

  • Search By Tags

    Type tags separated by commas.
  • Search By Author

Content Type


  • GM-Trucks.com Original News & Product Reviews
    • General Motors Product and Industry News
    • The GM-Trucks.com Garage - Vehicle Testing & Product Reviews
    • The Newsroom Archive
    • The Garage Archive
  • Battery Electric Vehicles - 2022-2026 Ultium Platform
    • 2022-2024 GMC HUMMER EV Pickup & SUV
    • 2024 Silverado EV & Sierra EV
  • Fullsize Truck & SUV - 2019-2023 T1XX Platform
    • 2019-2023 Silverado & Sierra
    • 2020-2024 Silverado HD & Sierra HD
    • 2021-2023 Tahoe, Suburban, Yukon, Yukon XL & Escalade
  • Fullsize Truck & SUV - 2014-2019 K2XX Platform
    • 2014 - 2019 Silverado & Sierra
    • 2015-2020 Suburban/Tahoe & Yukon/Yukon Denali
    • 2015-2019 Silverado HD & Sierra HD
  • Fullsize Truck & SUV - 1999-2006 GMT800 & 2007-2013 GMT900 Platforms
    • 1999-2013 Silverado & Sierra 1500
    • 2000-2014 Silverado & Sierra HD
  • Chevy Colorado & GMC Canyon
    • NEW 2023 Colorado & Canyon
    • 2015-2022 Colorado & Canyon
    • 2005-2012 Chevy Colorado & GMC Canyon
  • Classic Chevrolet / GMC Pickup Trucks
    • 1988-1999 Chevrolet & GMC C/K GMT400 Platform
    • 1973-1987 Chevrolet & GMC Square Body / Rounded Line Pickups
    • 1967-1972 Chevrolet & GMC Glamour / Action Line Pickups
    • 1960-1966 Chevrolet C/K/Apache & GMC 1000-3000 Pickups
    • 1982-2005 Chevrolet S-10/Blazer & GMC S15/Sonoma/Jimmy
    • 1969-1994 Chevrolet K5 Blazer & GMC Fullsize Jimmy
  • Marketplace
    • For Sale/Wanted
    • Member & Vendor Rating Forum
    • Member Product Reviews
  • The Lounge
    • Off-Topic
    • Future Vehicle Speculation & Spy Shots
    • Automotive Industry & Market Discussion
    • New Member Introductions
    • Meetups, Events, & Gatherings
    • GM-Trucks.com Comment Box
  • Hobbies & Lifestyle
    • Photography
    • Major League Sports, Outdoor Recreation, Firearms, Hunting, OHRV
    • Racing, Strip, & Track
    • Trailers, Hitches, & Towing
    • Garage & Home, Snow Plowing, Landscaping, & Lawn Care
    • Technology, Devices, & Gaming
    • Vehicle Buying, Financing, Incentives, & GM Card
    • Vehicle Builds
  • Technical & Advanced
    • Vehicle Appearance, Care, & Maintenance
    • Ask the GM Technician
    • Performance Engine Tuning
    • Transmission, Suspension, Transfer Case, & Axles
    • Wheels, Tires, & TPMS
    • Audio, Electronics, OnStar, MyLink, Intellilink & SiriusXM
    • How-To
  • Commercial Vehicles
    • 1980-2009 Chevrolet Kodiak and GMC Topkick
    • 1996-2018 Chevrolet Express & GMC Savana
    • 2019-2021 Chevrolet Silverado 4500HD/5500HD/6500HD
  • Black Truck Club's Topics
  • Texas Owner's Group's Topics
  • California Owner's Group's Topics
  • New England Owner's Group's Topics
  • Midwest Owner's Group's Topics
  • South Carolina Silverado Owners's Topics
  • Canadian Owners Club's Topics
  • SCUBA divers of GM-Trucks's Scuba Talk
  • Red Truck Club's Topics
  • Idaho Sierra & Silverado Owners Club's Idaho
  • Colorado Trucks's Exhaust Setups
  • Colorado Trucks's Pics of trucks
  • SEO Paint's seo color ordered
  • NorthSky Blue Club's NorthSky Blue Metallic
  • NorthSky Blue Club's Pics
  • diesel 3.0's Topics


  • Events
  • Birthdays
  • Texas Owner's Group's Events
  • California Owner's Group's Events
  • Midwest Owner's Group's Events
  • Red Truck Club's Events


  • Articles
  • News
  • Reviews
    • Project Sierra
  • Resources


There are no results to display.

There are no results to display.

Find results in...

Find results that contain...

Date Created

  • Start


Last Updated

  • Start


Filter by number of...


  • Start




Website URL









Found 3 results

  1. First thread on here, hope it helps people. **!!** DISCLAIMER **!!** Yes i know this is an 8 spd and its supposed to feel different than other automatic transmissions. AND Yes, I know these transmissions had a lot of issues out of the factory. **!!** DISCLAIMER **!!** Looking to find out information/recommendations for full fluid flush (cooler and all) and filter change for 2016 silverado 1500 with 6.2L and 8spd with max trailering pkg (which i think makes it an 8L90, havent confirmed yet) with almost 90000 miles (maint schedule from chevy for 2016 says trans/tfr case/diffs fluids due at 90k). I have a hard shift from 1 to 2 at very low speeds sometimes (especially when cold, but that makes sense because fluid dynamics), basically parking lot driving. I also have a weird deceleration when up to temp when taking off from a light less than 1/4 throttle, going from 1 to 2. Its almost like its slipping too long between 1st and 2nd. My body physically moves forward due to what feels like pushing the clutch in during acceleration. No banging or loud noises, just noticeable loss in acceleration. Just bought the truck at 88750 miles. If it matters, it has had PCM warranty reflash in the past, not sure based on garbage maintenance records if a flush had ever been performed. What I know: Dealership quote (Milwaukee, WI area) before 10% discount: - Gasket $36.21 - Filter $30.17 - Fluid $170.20 (represents 20 qts., *not sure if capacity or thats just how much they use when flushing*) - Labor and shop supplies $546.29 (this price makes me think that it is more than just a flush, like they are opening the system and forcing fluid and or cleansers through all components that touch trans fluid to make sure its fully flushed/cleaned. if just flush where they hook up to machine, this is such a damn rip off) Transmission fluid I am supposed to use to avoid shuttering or issues due to moisture absorption that was initially experienced according to GM TSB# 18-NA-355 (*PLEASE LET ME KNOW IF THIS IS OLD TSB#*): - (*HAS TO BE WITH BLUE DOT, NOT BLACK DOT) Mobil 1 Synthetic LV ATF HP It has never had the fluid changed before to my knowledge I'm trying to figure out what the latest GM factory procedure (either with a TSB# or whatever work order code is used) is so that I can communicate to multiple dealerships nearby so I can get pricing on actual same services. Here is the link that describes it a lil more and shows the fittings that they put on transmission for flush: https://gm-techlink.com/?p=11127 And here is another about the TSB for fluid (this one is more recent than the one above): http://gmauthority.com/blog/2019/08/tsb-seems-to-fix-8-speed-automatic-gm-transmission-problems/ I plan on getting a fluid sample of the transmissions fluid from dealer prior to changing so that I can send it out and get it tested so I have a record. (I will post the results of tests here when I get them). I got my free test sample bottles from Blackstone Laboratories (If you or your friend has an in with GM engineering and/or happens to know the pass/fail criteria that they use to decide whether or not to cover transmission or torque converter replacement, please let me know. I'd like to know what to look out for when I get my results from fluid testing) This is the most expensive thing I have ever purchased, i have extended warranty on it just because I'm worried about the transmission and obviously all the electrical doodads that new vehicles have nowadays, I just want to make sure I am taking care of it correctly. Would love to hear from seasoned GM certified techs and/or ASE master mechanics/techs and/or GM Engineers. Also please chime in with prices you've experienced including general location you're from so I can get an idea if this dealer is trying to rip me off. (so far the only thing I dont trust is the labor/shop supplies in the quote above, depending on what the procedure is)
  2. Trip B odometer has never been reset. Fuel Economy shown is for life of vehicle. This truck has had significant towing and haven't always been hyper-miling. Still seems like a pretty good LoV FE average. Can any top this? 6.2L 8 Spd.
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.