Jump to content

Shifting problems between 1st and second gears

Brian Wegher
 Share

Recommended Posts

Brian Wegher New Member

Brian Wegher

Posted
Posted

Hello I am new member to the sight and I was looking for some advice to this issue. Recently purchased a 2020 Silverado 4x4  45,000 miles 5.3 motor with 8 speed transmission. Never noticed when I test drove it but when I first take off after it sitting all night, transmission like slips or hard shifts between first and second gear. Only on the first take off. The next take off it is fine, but it does it every time I take off after it sits all night. Anyone experience this issue? I read some things about fluid change. Not sure about this but seems more like possibly electrical or software issue. I let it warm up first and it makes no difference. Heck I had a 2000 Silverado for 20 years 200k miles and I don't think transmission fluid  was ever change. Never an issue. A little nervous because warranty has expired and not sure if this is covered under powertrain warranty. Thanks for any help on this issue.

  • Sad 1
Bikerjon Enthusiast

Bikerjon

Posted
Posted

Pull the trans. dip stick and smell the fluid. Does it smell burnt? Wipe the stick off on a white shop towel or paper towel. Is the fluid clear or does it look dirty? If dirty or burnt you should change the trans. fluid, That said dirty or burned fluid is usually only a symptom and not a cause for transmission problems. You should take it to a dealer, leave it overnight and have a mechanic test drive it cold with you. The powertrain warranty should cover the transmission but the dealer will ultimately have to decide. 

silveradosid Senior Enthusiast

silveradosid

Posted
Posted

common with the 8 speed, my 2020 also will do this first thing on the morning. i remote start mine for a couple minutes and then put it in reverse for 5 seconds before i put it in drive, seems to help

  • Like 1
Brian Wegher New Member

Brian Wegher

Posted
  • Author
Posted

Just wondering if yours did this since it was new? Or did it start after more miles where put on the truck?

I will check fluid color and smell, probably just go a head and change fluid it does have 45k on it. I have no record showing it being changed. If this is a regular occurrence, its's very strange that it only does it on the first shift sequence. If I would have felt that when I test drove it I would have parked it back in there lot. Just hoping I didn't buy myself a nightmare. Thanks for your response's 

GOMD Enthusiast

GOMD

Posted
Posted (edited)

Had/have this in a 2017 Camaro 8 speed, and its showing up now in a 2023 GMC Sierra 8 speed. Not much the dealer will really due, there was a TSB for the Camaro years ago, flush and fill trans fluid, but it can and does come back.

 

It is always on the first start and drive of the day, you need to really have a light foot to get rid of most of it. 

Edited by GOMD
  • Like 1
Brian Wegher New Member

Brian Wegher

Posted
  • Author
Posted

Not a good selling issue, but if that is all it is, I can live with it. Just seems kind of crazy that GM can't get this ironed out. I was reading they had the newer ones straightened out but if your 2023 is doing it as well, I guess not. Thanks for info.

  • Like 1
octobers fade Enthusiast

octobers fade

Posted
Posted (edited)

Just put my 2014 in, going to be  $1500 - $4500 depending. I was told they were notorious for this kind of failure.

Edited by octobers fade
newdude Senior Enthusiast

newdude

Posted
Posted
On 4/4/2023 at 9:18 AM, Brian Wegher said:

Hello I am new member to the sight and I was looking for some advice to this issue. Recently purchased a 2020 Silverado 4x4  45,000 miles 5.3 motor with 8 speed transmission. Never noticed when I test drove it but when I first take off after it sitting all night, transmission like slips or hard shifts between first and second gear. Only on the first take off. The next take off it is fine, but it does it every time I take off after it sits all night. Anyone experience this issue? I read some things about fluid change. Not sure about this but seems more like possibly electrical or software issue. I let it warm up first and it makes no difference. Heck I had a 2000 Silverado for 20 years 200k miles and I don't think transmission fluid  was ever change. Never an issue. A little nervous because warranty has expired and not sure if this is covered under powertrain warranty. Thanks for any help on this issue.

 

 

 

Welcome to the #1 normal issue on the 8 speed.  First 1-2 shift of the day, the clutch pack that handles 2nd gear is rather large and the fill time is a bit longer than the other clutches for the first time its shifted into.  

 

Silveradosid posted a great link via GM explaining it.  

newdude Senior Enthusiast

newdude

Posted
Posted
23 hours ago, GOMD said:

Had/have this in a 2017 Camaro 8 speed, and its showing up now in a 2023 GMC Sierra 8 speed. Not much the dealer will really due, there was a TSB for the Camaro years ago, flush and fill trans fluid, but it can and does come back.

 

It is always on the first start and drive of the day, you need to really have a light foot to get rid of most of it. 

 

 

Fluid fixes the shudder issue, not the 1-2 first shift.  

  • Like 1
Brian Wegher New Member

Brian Wegher

Posted
  • Author
Posted

Thanks for all the info. This eases my mind a bit to find this is a common issue and it is not transmission failure. 

GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
On 4/4/2023 at 9:18 AM, Brian Wegher said:

Hello I am new member to the sight and I was looking for some advice to this issue. Recently purchased a 2020 Silverado 4x4  45,000 miles 5.3 motor with 8 speed transmission. Never noticed when I test drove it but when I first take off after it sitting all night, transmission like slips or hard shifts between first and second gear. Only on the first take off. The next take off it is fine, but it does it every time I take off after it sits all night. Anyone experience this issue? I read some things about fluid change. Not sure about this but seems more like possibly electrical or software issue. I let it warm up first and it makes no difference. Heck I had a 2000 Silverado for 20 years 200k miles and I don't think transmission fluid  was ever change. Never an issue. A little nervous because warranty has expired and not sure if this is covered under powertrain warranty. Thanks for any help on this issue.

This is certainly not what we like to hear, Brian Wegher.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2020 Chevrolet Silverado. To do so, please send an email to [email protected] with ATTN: Brian Wegher/GM Trucks in the subject line.

Please include your contact information, VIN, a brief description of your concern, and the name of your preferred dealership. We look forward to hearing from you. To learn more about GM’s Privacy Policy, please visit https://www.gm.com/privacy-statement.html. The information you provide may be monitored and recorded and is subject to the GM Privacy Statement.
 
Privacy Statement | General Motors
Your privacy is important to General Motors. This Privacy Statement addresses the personal information GM collects and how GM handles that personal information.
www.gm.com
 

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

    342,947
    Total Members
    8,960
    Most Online
    Sothpaw27
    Newest Member
    Sothpaw27
    Joined

  • Who's Online   2 Members, 0 Anonymous, 452 Guests (See full list)

  • Latest Articles

  • Posts

    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      www.enginelabs.com/news/what-i-learned-today-bearing-clearances-vs-oil-viscosities/     www.enginelabs.com/news/oil-viscosity-can-the-numbers-be-misleading/ The Big Lie… Coming full circle to the reason Lake discusses the Porsche engines in particular. Based on the 2000 samples in the SPEEDiagnostix database, increasing the oil viscosity in these engines, even those run on the track, showed no significant difference in results.   The smoking gun was in the oil chemistry. That is where the data shows higher instances of more wear. Molybdenum was the key; the higher the amount, the less the wear. Speed postulates that higher viscosity oils have more thickeners to artificially inflate their viscosity numbers. These thickeners lose viscosity under shear, and the result is that not all oils of the same viscosity have the same shear stability.   Having enough viscosity is the most important characteristic, but according to Speed, once that required viscosity level is reached, additive chemistry matters more than additional viscosity. Speed also states, oil pressure problems on the racetrack aren’t a viscosity problem; it’s an oiling system problem. Running a thicker oil is just a band-aid for an underlying oiling system problem.
    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      Can it still be Assembled II?   Viscosity on the decline by various means. Heat on the rise making that worse. Engine RPM in the tank. Smaller motors with more boost trying to emulate an electric motor. Full torque, zero rpm. Then we will triple the OCI. Argh.    But wait....there is more. LSPI has pushed a shift from Ca to Mg and as that cost more PLUS the run to lower sulfur compounds the TBN is moving in the wrong direction for the increased OCI's demanded.    That not being enough to placate a demand for a parameter they can't measure the other sulfur bearing compounds are also under attack. That would be zinc and phosphorus sulfonate compounds. To some degree those are being replaced with boron esters and others, i.e. titanium ect. All of which have shorter service lives. And there there is the "Secrete Sauce" marketing for AW adds that 'Can't be detected by UOA's" but trust me because I (the blenders) never ever lie.    Spoiler alert; ALL additives are sacrificial! Smaller amounts of the old blended with less robust versions of the new do not equal longer service lives. So what are the blenders recommending? Wait for it.......   MOVING THE GOAL POSTS! OMG      Let's declare the long standing TAN/TBN crossover irrelevant and tell people that soot is a great 'graphite' based lubricant which can aid tribo films. Wait, what? Let's declare that the standards used for oxidation and nitration were to conservative and can be expanded. Let's tell them that because GDI fuel dilution, although being a VISCOSITY KILLER and an acid generator is actually okay because we have better base oils that limit viscosity failure limits. (Said knowing this is measured in fractions of a centipoise and in bases not commonly used in shelf oils)   Lying from the heart is not just the new normal but we have a public, a very young public, that is so ignorant of the facts and so sure of their "RESEARCH" into AI driven models base in regurgitated  instead of scientific research based unvarnished, peer reviewed FACTS that the incoming guard is loosing their grip on reality and the OEM's are tickled pink while the blends bend the knee.    You have an ever limited set of tools to work with. And sooner or later those will be taken from you as the API and the EPA strangle the last remaining fluids from the system. What you have left is your wits. If you care to use them.    At some point in the very near future it will not longer be possible to do "What is best for the machine", and be replaced with "The best you have access too". You WILL be rewarded with half the life and twice the cost. That isn't that hard to predict.         
    • Chuck FB
      Software Update

      By Chuck FB · Posted

      I trust you saw the other comment where he knew what he was talking about !. Yes, these darned newer vehicles with all their so smart they are stupid technology, goes and drains the battery down. As you might see my other comment, I installed a Noco 5 battery tender under the hood and at this point still have the cord routed so I have to lift the hood and then plug it in but am typically parked in a garage or a shed so its not risking the engine hood in the wind. That way I am assured or hopefully so of not finding I have a battery drawn down and can't even start the truck and that also damages the battery to draw it down too far. 
    • Chuck FB
      Software Update

      By Chuck FB · Posted

      I guess no surprise my guesses were wrong !, at least now I know if I ever happen to see it grayed out in my own truck as to what is going on.    I never happened to catch my truck with it grayed out, it seemed every time I would test to see if there was an update it never found anything and yet more than once I would check to see if there was an update and there was nothing, then a day later or even that same morning I would drive to town and after more than one engine shut down in town as I did my errands it would pop up that there is an update now ready to install and the only place I have a connection to the internet is at home by wifi so its not as if it grabbed the download while driving. I don't trust these new vehicles due to all the crap they can decide to do while sitting for some days not running and run the battery down so most of the time if I know the truck will sit for a few days I plug in the battery tender I have mounted under the hood and so the only time the truck must have downloaded software was when it was sitting in the garage where the signal is awful but I have that tender plugged in and somehow it managed to download it. I honestly detest all this crap, way to easy to leave a person stranded.    Since I don't trust any of it I don't do the install of the already downloaded software until I get home and sometimes have even sat in the truck to watch what its doing as its going through the process to its conclusion as its not like it is set up that it will tell you the next time you fire up the engine that the update that was initialed actually installed or installed properly. Yes I can go into the updates and see the list. After I go through the install where I feel its safe to do so in case it breaks down as a result, I will plug in the battery tender after the fact to recharge as I don't know how much power its taking just to do the install and that can take a while for it to install. 
    • nfisherman
      Software Update

      By nfisherman · Posted

      Thanks for the reply. All settings were correct and the engine was off, as it was supposed to be. It turned out to be something simple. I took a drive for about an hour. I must have had a low battery without knowing it. The voltage gauge on the display looked ok. At the end of my drive, I shut off the engine and the update prompt came up and it updated normally. It’s ironic because one of the features of the update is a reduction of battery drain. 

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...