Jump to content

2020 At4 Transmission problems

Joe cox
 Share

Recommended Posts

Joe cox New Member

Joe cox

Posted
Posted

3 week old 2020 At 4.  1100 miles and transmission problems already.  Returned to Ritchey Gmc today for service.  My 2018 gmc had trans problems.   Anyone having same problems?  

4FBB1AEB-5F84-494F-A499-204055B6811F.jpeg

DirtyAndy Enthusiast

DirtyAndy

Posted
Posted

No issues with mine. Only at 225 miles though. Not getting out of 3rd gear is a major problem though.

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted

Well, it happens. Still can count all of the 10 speed complaints here on one hand. Mine’s been flawless. 

  • Like 1
Jetmek Enthusiast

Jetmek

Posted
Posted

I know that GM and Ford developed the 10 speed trans for these trucks and I don't know the similarities between brands and models. We leased a brand new Explorer late last year. It has less than 5K on it and it has been at the dealership for 3 weeks as of yesterday with the transmission ripped out of it and they are waiting on parts to put it back together. The new Explorers are RWD platforms unlike the previous generation and I assume they use the same 10 speed as an F-150 which can't be too dissimilar to GM's version. Ours developed a violent downshift after being above 45 mph, like turning into our subdivision from a 4 lane highway. It would also have random funky up shifts as well. I haven't talked to the mechanic yet to find out what happened. The service advisor hasn't a clue. I hope you get yours sorted out.

OnTheReel Senior Enthusiast

OnTheReel

Posted
Posted

Co-developed, yes. But the GM and Ford transmissions are each built in their own individual plants with entirely different programming and controls. What happens in a Ford Exploder means nothing for what happens in a GM pickup.

 

I am as shocked as anyone that GM got the 10 speed so right and Ford still has it so wrong, but it’s 100% true.

  • Like 2
Glava2876 Enthusiast

Glava2876

Posted
Posted
15 hours ago, OnTheReel said:

 

I am as shocked as anyone that GM got the 10 speed so right .

I am totally in agreement with this statement. I had a 15 Sierra 6.2 8M, that had some warranty fixed transmission problems, which made it OK and still that way at 50k miles.

I traded it in on a 2020 Sierra 6.2 10M and am blown away with how great this transmission is so far. Nice smooth shifts up and down when cruising around town -but it has fast crisp shifts when you get out on the highway and get into it!

  • Like 1
AdamAT4 Enthusiast

AdamAT4

Posted
Posted
I know that GM and Ford developed the 10 speed trans for these trucks and I don't know the similarities between brands and models. We leased a brand new Explorer late last year. It has less than 5K on it and it has been at the dealership for 3 weeks as of yesterday with the transmission ripped out of it and they are waiting on parts to put it back together. The new Explorers are RWD platforms unlike the previous generation and I assume they use the same 10 speed as an F-150 which can't be too dissimilar to GM's version. Ours developed a violent downshift after being above 45 mph, like turning into our subdivision from a 4 lane highway. It would also have random funky up shifts as well. I haven't talked to the mechanic yet to find out what happened. The service advisor hasn't a clue. I hope you get yours sorted out.
This is my first 10 speed on a GM, I do have experience with the 10 speed on an F150 and it's a very good trans. Buddies are running 600hp Raptors with the 10 speed and 4x4 launches and not one issue.

Sent from my SM-N975W using Tapatalk

Jetmek Enthusiast

Jetmek

Posted
Posted
1 hour ago, AdamAT4 said:

This is my first 10 speed on a GM, I do have experience with the 10 speed on an F150 and it's a very good trans. Buddies are running 600hp Raptors with the 10 speed and 4x4 launches and not one issue.

Sent from my SM-N975W using Tapatalk
 

I've searched around and I can't find any problems with them either. Ours must have come down the line on a Friday at quitting time.

 

Supercup Enthusiast

Supercup

Posted
Posted

I have a 19 AT4 6.2 - 10 spd - 8,500 miles - not a single issue - in fact the tranny is one of the best overall things about this truck - it shifts smooth and has been absolutly seemless!

 

Hope they find a fix for you and you get back to enjoying your truck! 

  • Like 1
DirtyAndy Enthusiast

DirtyAndy

Posted
Posted
The new 10 speeds are junk. Stick with tried and true 8 speed.

My 8 speed drove like garbage compared to this 10 speed. Coupled with the ridiculous throttle lag, I did not enjoy my ‘18 Silverado.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Recently Browsing   0 members

    • No registered users viewing this page.

  • Forum Statistics

    250.5k
    Total Topics
    2.7m
    Total Posts

  • Member Statistics

    342,897
    Total Members
    8,960
    Most Online
    ncleg
    Newest Member
    ncleg
    Joined

  • Who's Online   5 Members, 0 Anonymous, 684 Guests (See full list)

  • Latest Articles

  • Posts

    • XY74
      Roll up bed cover experiences

      By XY74 · Posted

      I have a Retrax pro that I first had on my 2020 chevy and transferred it to my current GMC.  It stays in the garage most of the time, so hard for me to judge it's long term weather resistance.  It still works perfectly, been very durable.  It doesn't see oil patch usage, but it's not a mall queen.  It keeps most things mostly dry (small leaks) and the security of it is enough to slow someone down but not keep them out for long.  I would buy one again, it works for me.     
    • fm2176
      New to Me 2010 SLE (Quirks, Issues)

      By fm2176 · Posted

      Thanks to the convenience of Amazon, I was able to get a few things done to the truck today.  I installed Carquest Premium oil and air filters with five quarts of Mobil1 High Mileage 10-30 along with a quart of Pennzoil Platinum 5w-30 I already had.  The latch for the flip up center console lid was broken so I replaced it along with the power mirror switch.  I found my push retainer assortment this morning and reattached the plastic under the bumper and it was only held on with a few screws and retainers.  Then I programmed a new remote keyless entry fob so I can lock my dog in the truck when I take her out with me (I've got to keep the air going for her since it's been in the 100s).  Finally, I ordered some LED interior bulbs and replaced the reading lamps.  The front lights are working fine while one of the back lights only works intermittently and the other not at all.   While under the truck, I found the source of at least one of the noises: the sway bar links need replacing.  I ordered a set of Suspension Dudes links with Code Red bushings.  Never heard of them, but they're made in the USA and have decent reviews.  While making yet another Amazon order, I went ahead and added a set of front tow hooks.  I went with red, since that's the color of the sway bar link and bushings and it should look decent enough on a black and chrome truck.  Speaking of which, it doesn't bug me much, but the passenger side mirror has a chrome cap while the driver side doesn't, so eventually I'll make them match one way or another.  Oh, and I ordered a $20 TPMS reset tool.  No idea if it will do anything for my sensors but it was cheap and will work for the Ford Transit Connect as well.     For tradition's sake, I ordered a new oil change wrench.  I kept the Snap-On 9/16"x15mm GM wrench I bought when I was 18 in the 2006 GMC from the time I bought that truck until the truck was lost.  While I was tempted, there's no need to spend $80 for a new SO wrench, or even $50 with shipping for a used one on Ebay.  I just bought a Duratech 15mm extra-long ratcheting wrench to do the job as needed.  It works, and if I like that wrench enough, I'll buy the set.  
    • Another JR
      Multigate electrical problem

      By Another JR · Posted

      The recall is for exactly this issue - those drain holes combined with the limited environmental capability of the tailgate electronics card inside the tailgate were a problem. The “safety issue” was the potential for the tailgate to spontaneously open, but all kinds of tailgate misbehavior can occur from water contamination of that control card.    There is no real fix yet. The initial recall just disabled the tailgate. Later, when parts became available, they would replace bad parts with new parts of the same bad design. My dealer is going nuts because the few times I let them get their hands on my truck, my tailgate is off due to a slide-in camper installation. They really want to cut my tailgate wires, but I won’t give them the chance. I will let them get their dirty hands on it when a real fix (redesign) is available.  My tailgate, which works just fine with sealant plugging the drain holes, will remain safe in a dry storage crate until then.  
    • JakeD
      Tire fitment

      By JakeD · Posted

      Yes your absolutely right, I been looking at the 4 inch BDS one and it acutely states you can use the stock 20’s just not the 17’s or 18’s, I also didn’t realize that with my 275/60r20 stock wheels I’m already running 33 inch diameter wheel setup lol so I can just run my stock wheels and tires atleast to start.
    • davester
      Tire fitment

      By davester · Posted

      I would expect that to be lift-kit dependent.  If the kit has interference issues w stock wheels, then the kit/manufacturer should indicate that somewhere.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...