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  1. U

    How to adjust for oversized tires

    Yesterday I had my L5P 2018 in the dealership for a recall. I asked to adjust the ECM for 35s I just got. They told me they don’t know how. Said they opened a ticket with GM and they couldn’t do it. Is there a tuner or a way to fix the Speedo or am I just going to have to deal with it being...
  2. U

    L5p P20EE

    Sad thing is I traded my 06 LBZ in on this truck. It had 250K miles and never once saw a shop! Sent from my iPhone using Tapatalk
  3. U

    L5p P20EE

    Actually there were about 10 trucks with the same issue. GM sent out a bulletin that they were aware of the issue and had no fix for it. I went back to back with the issue on $60K trucks. So not sure it’s a “sensitive “ issue. Sent from my iPhone using Tapatalk
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    L5p P20EE

    Update: Dealer put me in a new truck! And it thru the same code at 194 miles! Now back in the original truck hoping the gasket fixed it. Chevy says even they don’t know how to fix. Sent from my iPhone using Tapatalk
  5. U

    L5p P20EE

    Thanks new to this forum and where things need to go. Sent from my iPhone using Tapatalk
  6. U

    L5p P20EE

    It came on at 250 miles. And again after driving about 200 miles they ordered a reduction fluid gasket today. Think they are just going to get me in a different truck. This has me all kinds of sideways. Sent from my iPhone using Tapatalk
  7. U

    L5p P20EE

    Sad times around my house. Second time taking my 2018 2500hd in for a CEL at only 600 miles. It has the dreaded P20EE code. So far they have : Done a regen Drained and refilled the Def and then regen Replaced NOX sensor Ordered a gasket for something No fix yet! Sent from my iPhone using Tapatalk
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