Chevy/GMC Duramax 04.5-05 LLY Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines

tow hauld mod / over drive switch

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Old Mar 15, 2011 | 09:17 PM
  #1  
12valvecummins1994's Avatar
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Default tow hauld mod / over drive switch

hi my dad has a 04 duramax and it an auto and the button to put it in tow haul mode and to turn the overdrive off it quit working how do i fix this where can i get the part
 
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Old Mar 16, 2011 | 08:15 PM
  #2  
cbsmoraine's Avatar
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Joined: Jan 2011
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From: TEXAS
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dealership, gmpartdirect.com, how to fix it, not sure completely, but its probably isnt going to be easy.
 
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