Jump to content

Transmission jumping from park to drive

Dieselcamino
 Share

Recommended Posts

Dieselcamino Enthusiast

Dieselcamino

Posted
Posted

Hey everyone, slightly annoying problem with my 2018 Silverado 5.3 6spd.  (35k miles)  when stone cold and I go to drive or reverse for the first time it does a bit of a jump into the gear. After that one time it's good for the day. If I hold the brake enough it's almost unnoticeable but if someone else drives it it seems funny. Is this something resetting the computer could help? Other than this is drives great. 

rav3 Senior Enthusiast

rav3

Posted
Posted

Was it happening before the change? Or after?

rav3 Senior Enthusiast

rav3

Posted
Posted

What brand fluid did you use for the change? Was it a drain and file or did you have it flushed?

Dieselcamino Enthusiast

Dieselcamino

Posted
  • Author
Posted (edited)

Drained the pan, new filter, ran for a day and drained pan again. Filled with Valvoline max life.  Also deleted the trans thermostat when I purchased it at 14k miles. Temperature was never really an issue for me though

Edited by Dieselcamino
rav3 Senior Enthusiast

rav3

Posted
Posted

Sounds like you're doing the right things. I did the same on my '17 Silverado with 6L80 transmission @ 32k. I had a similar shift in my transmission when 'cold' or first drive. I personally think it has something to do with the pressure shift valve(s) but I'm no transmission guy, just an old retired plastics tooling engineer. What I did to help that shift (not saying it's correct) but I added a bottle of LubeGard transmission fluid additive, either the Platinum or Red bottle. It won't hurt anything to my knowledge but have been told by several 'old transmissions mechanics, that this helps the seals & makes them "more slick" so to speak.

Anyway, that's my store & what I do/did.

Good luck & keep the forum updated on your progress.

Dieselcamino Enthusiast

Dieselcamino

Posted
  • Author
Posted

It's somewhat nitpicky I guess compared to the stories I hear on these trans. But little things annoy me. Hard to problem solve when it only happens once a day first thing. 

rlcole321 Enthusiast

rlcole321

Posted
Posted

when cold starting, how long does it take for the RPM's to come down?, maybe the RPM's are a little too high when you put it in gear when cold.....

GMCustomerService Senior Enthusiast

GMCustomerService

Posted
Posted
On 7/10/2023 at 7:32 PM, Dieselcamino said:

Hey everyone, slightly annoying problem with my 2018 Silverado 5.3 6spd.  (35k miles)  when stone cold and I go to drive or reverse for the first time it does a bit of a jump into the gear. After that one time it's good for the day. If I hold the brake enough it's almost unnoticeable but if someone else drives it it seems funny. Is this something resetting the computer could help? Other than this is drives great. 

This is certainly not what we like to hear, Dieselcamino.  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 2018 Chevrolet Silverado's transmission. To do so, please send an email to [email protected] with ATTN: Dieselcamino/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

  • Haha 1
mikeyk101 Senior Enthusiast

mikeyk101

Posted
Posted
32 minutes ago, GMCustomerService said:

This is certainly not what we like to hear, Dieselcamino.  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 2018 Chevrolet Silverado's transmission. To do so, please send an email to [email protected] with ATTN: Dieselcamino/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

@GMCustomerService I was wondering where you went and how long it would be until you showed back up again!!! Glad to see you posting again with your same old cut and paste useless attempts at providing help!!!

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

  • Latest Articles

  • Posts

    • richard wysong
      Gas Prices

      By richard wysong · Posted

      Diesel $5.42 at the truck stop on the hi-way
    • Chuck FB
      Joke Thread

      By Chuck FB · Posted

    • txab
      Gas Prices

      By txab · Posted

      $3.59  
    • needafix
      2019+ Brake failure, it's complicated

      By needafix · Posted

      I'm not sure if this should be a new topic, let me know if it's out of place. This my first post. Thanks 85077522 - AC Delco GM Genuine Parts Brake Master Cylinders. Anyone else had to replace this brake master cylinder yet. I didn't do any brake work, it looks like new parts and I've had the truck for about 4k miles, 119k total miles.  When it started to throw codes I did the calibrations with a bidirectional scanner and got the codes to clear but they came back so I did the routine; base bleed, automated bleed and final base bleed. All that with Bosch ES16-32N fluid (please look it up). That seemed to fix it but 100ish miles later it failed again so I ran the same process but with a pressure bleeder this time and got the same results, fixed for 100ish miles. The original fluid looked bad and I thought I got most of it out, it could've been the wrong fluid. The codes; P25A2, C05B0-00, C2A1B. I can get them to clear but not for long. The C05B0 indicates a leak in the front circuit (which is bone dry) so I'm thinking of doing the bleed process on that front again today and I don't know if that's taboo to just do the front but at this point it seems like it's worth the try anyway. The new master cylinder/module unit is supposed to get here today. But now I'm pretty much convinced this install is over my head. I've called several shops and some mobile guys that I know but this thing is like radio active material, scary wise. I did get 2 local shops say they should be able to do it, one says he has the SPS2 programing capability. And with the battery disconnected is there supposed to be pedal resistance, mine is to the floor, then if I pump it I can get some resistance. I had a panic stop prior to this issue which may have contributed from what I read. And on the first attempt to bleed and hydraulic test the scanner listed things to look for and one was any gaps between the pad and rotors which I did notice on the RF corner and I removed the outer pad (where the gap was) cleaned it and the hardware and didn't see a gap after that but will re-check it. I read that if pushing the caliper pistons back then you're supposed to open the bleeder so as to not push fluid backwards into the abs module or it will damage it. If that's true then that's also a possibility from the previous owner having the brakes changed before I got it. I'm using an XTool ip500 scanner. Any suggestions, questions and comments welcome. 
    • Donstar
      Navigating senior years.

      By Donstar · Posted

      Next Friday will be my 6 week point from my right knee replacement.  The surgeon says it will be fine if I choose to drive after this checkup.  I know I could drive now but best to do as my surgeon (and my wife) tell me.  Richard compared being 62 to 72.  I remember when I was in my early 60's I was experiencing slow but regular decline in my mobility.  Thanks to good medical support,  i continued to fight the speed and spread of this decline. During my 60's I worked on non-surgical methods and just when I turned 70, my orthopedic surgeon recommended joint replacements.  In a little over a year, I had one shoulder and both knees replaced.  This hasn't been a terribly fun experience, but worth the discomfort as my future mobility health trajectory has reversed.  It is a treat to now be watching my mobility. balance and confidence steadily improve!

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...