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Transmission Issues

pigphart

By pigphart
in Troubleshooting & Recalls

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Crstfr Enthusiast

Crstfr

Posted
Posted

IMG_0482.thumb.jpg.199003592ceb03b0416a8389cb22804f.jpgIMG_0481.thumb.jpg.24ca93a598f5ea27cc6e81852c62a452.jpg

17 hours ago, pigphart said:

How is your truck doing after the flash update? 

actually doing great... ..drives much better than before.. i can tell for sure.. .and its weird about the gas.. not sure why it went up~.. but all is good!.. just hit 32k!

 

attached is what they did with the bulletins!

 

hope that helps man!

pigphart Enthusiast

pigphart

Posted
  • Author
Posted

Thank you so much, you have convinced me to follow through with it at my dealer.  Cannot thank you enough, just shouldn't be like this on a new truck with no one being able to provide an answer at the dealership.  Seems silly.

 

Thank you again

  • 3 weeks later...
The Gibson Enthusiast

The Gibson

Posted
Posted
On 3/29/2018 at 8:58 AM, pigphart said:

Thank you so much, you have convinced me to follow through with it at my dealer.  Cannot thank you enough, just shouldn't be like this on a new truck with no one being able to provide an answer at the dealership.  Seems silly.

 

Thank you again

How did it go?

pigphart Enthusiast

pigphart

Posted
  • Author
Posted

I had it done, but still banging into 2nd from 1st and visa versa, but not as bad as it was.  Hauled our Jet Skis to the river with no issue trailering but in traffic and stopping and starting it still bumps a bit.  Performance is good, gas mileage was 16.2 for 300 miles to Needles CA which is pretty good considering I'm hauling 2 jet skis and all the trimmings, but the bumping from shifts is really getting old.  I really want to thank you for all your help, it did help but didn't resolve the issue completely.

 

  • 2 months later...
pigphart Enthusiast

pigphart

Posted
  • Author
Posted

Well I have an update.  They found that I had a cracked throttle body, which was their answer to my transmission fix for a 4th time.  Since the replacement it runs much better, but the transmission has the same clunk as before.  I'm taking it in again Wednesday to have it looked at again, by the same mechanic that has looked at it before.  I was thinking that I might try another dealership and see if fresh eyes on my problem could be a better option.  Thank you all for the help and especially the hotfix for the computer.  They had NO idea about the software update and literally had to contact GMC for the update. 

The Gibson Enthusiast

The Gibson

Posted
Posted

After a reprogram and valve body my truck still had hard clunking up and down shift in second gear and acceleration was not smooth with a vibration at about 40-50.  My solution was to get rid of this truck and switch brands.  After several GM vehicles, I am no longer interested in any GM vehicle after this.

 

Bye GM.

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