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Discussion Starter #1
I have a 2013 Chevrolet 3500 HD. Trans felt like it jumped out of gear. but continued to drive normal. Then went into limp mode. I drove it today and was fine. Then the park censor turned off by its self. and about 2 miles later went into limp mode again. Would appreciate any help
 

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Taking the Long Way Home
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3,278 Posts
Find someone with a good scanner, not autozone one, efi v2 or ezlynk scanner, there will be a code in history which will point you in the correct direction.


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Discussion Starter #3
Find someone with a good scanner, not autozone one, efi v2 or ezlynk scanner, there will be a code in history which will point you in the correct direction.


Sent from my iPhone using Tapatalk Pro
That's the plan. Just had it towed home this morning. I'm going to check the obvious stuff. It has a DEF delete with a tuner. I was hoping someone may have seen this issue before.
 

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Taking the Long Way Home
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3,278 Posts
Tcm’s are an issue with these trucks, they have an internal ground that tends to go to crap and all sorts of weird things happen. Mileage and usage of the trans can cause slips as well, the code will tell the tale.


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