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Auto 4wd

Mr.Diesel2U

By Mr.Diesel2U
in Ask A GM Technician

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Mr.Diesel2U New Member

Mr.Diesel2U

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Hi,

I have a '05 GM truck with the Auto 4WD feature. All works fine, Auto & 4Hi & Lo, except when I put in in 2WD, the truck doesn't move....like its in neutral! Any ideas?

 

Cheerz

DofD Senior Enthusiast

DofD

Posted
Posted

Hi there and welcome to GM Trucks! :lol:

 

Hmm... Odd issue. When it's in auto do you know if it's in 2wd or 4wd-hi? It's almost like putting the switch to 2hi is telling the computer to put it in neutral. Do you know anyone with a code reader to see if your truck has logged any diagnostic codes?

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