Diesel Def Fix

  1. Welcome to GM Inside News Forum – General discussion forum for GM

    Welcome to GM Inside News Forum - a website dedicated to all things GM.

    You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, Join GM Inside News Forum today!
     
+ Reply to Thread
Page 1 of 2 12 LastLast
Results 1 to 15 of 23

Thread: Diesel Def Fix

  1. #1
    2.5L Iron Duke
    Join Date
    Feb 2007
    Posts
    23
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Diesel Def Fix

    Hi All;

    Lots of problems with the new 2011 Duramax Diesel trucks. All def releated.

    Does anyone have any inside knowledge if GM is working on a permanent fix for this??

    Thank you

  2. Remove Advertisements
    GM Inside News
    Advertisements
     

  3. #2
    2.4 Liter SIDI ECOTEC 191185's Avatar
    Join Date
    Jan 2011
    Posts
    133
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Diesel Def Fix

    There will be no 2012 Duramax production until they get it fixed. So far, 2013 is the soonest we'll see the 'max back.

    All because of the Def

  4. #3
    6.2 Liter LS9 Supercharged V8 MrCritical's Avatar
    Join Date
    Aug 2008
    Location
    South Of The North
    Posts
    6,362
    Thanks
    0
    Thanked 4 Times in 3 Posts

    Re: Diesel Def Fix

    How hard of a fix can it be?

  5. #4
    1.8 Liter ECOTEC
    Join Date
    May 2010
    Posts
    33
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Diesel Def Fix

    IMO, the whole diesel exhaust treatment systems seem like a complicated mess. I can only imagine the out of warranty issues down the road. Dodge met todays specs in 2007 and the still seem to have issues, but are probably way ahead of GM & Ford keeping those 'check engine' lights off. I guess that's why I'm here, probably going to a GASSER this time around, maybe GM.

  6. #5
    2.5L Iron Duke
    Join Date
    Feb 2007
    Posts
    23
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Diesel Def Fix

    Quote Originally Posted by 191185 View Post
    There will be no 2012 Duramax production until they get it fixed. So far, 2013 is the soonest we'll see the 'max back.

    All because of the Def
    Thank you for your insider knowledge.

    The new 2011 GMC Diesel is an AWESOME trucl all the way around. With the new emmision control requirements, it is doing its job with NO diesel fumes or smell at all from the truck. Tremendous power from the engine also.

    I bet the def tank will have to be replaced in all the trucks along with programming. The strange thing is that not all trucks have the problem!!

    Please keep this thread updated when more can be shared.

    Thank you

  7. #6
    4.4 Liter Supercharged Northstar Premium Member smith7629's Avatar
    Join Date
    Jun 2005
    Location
    Ohio
    Posts
    2,707
    Thanks
    229
    Thanked 324 Times in 198 Posts
    My Ride
    2017 BMW X3 Xdrive 35i

    Re: Diesel Def Fix

    What are you guys talking about? The only DEF problem I know of is in extreme cold climates (like north, north Canada, Alaska) where the DEF is freezing. Tanks will require a more robust heater.

  8. #7
    4.4 Liter Supercharged Northstar Premium Member smith7629's Avatar
    Join Date
    Jun 2005
    Location
    Ohio
    Posts
    2,707
    Thanks
    229
    Thanked 324 Times in 198 Posts
    My Ride
    2017 BMW X3 Xdrive 35i

    Re: Diesel Def Fix

    Just as I thought...no one can back this up.

  9. #8
    GMI Staff Member Premium Member Envoy4Life's Avatar
    Join Date
    Jun 2010
    Location
    Detroit, MI
    Posts
    19,907
    Thanks
    3,036
    Thanked 5,131 Times in 3,329 Posts
    My Ride
    2016 Cadillac CTS Performance

    Re: Diesel Def Fix

    Quote Originally Posted by smith7629 View Post
    What are you guys talking about? The only DEF problem I know of is in extreme cold climates (like north, north Canada, Alaska) where the DEF is freezing. Tanks will require a more robust heater.

    I personally have never heard of a DEF problem with the Duramax myself, either.


    Quote Originally Posted by smith7629 View Post
    Just as I thought...no one can back this up.

    Your previous post was posted at 6:53 A.M. LOL!! Let people wake up and smell the coffee.
    Current:

    2016 Cadillac CTS4 2.0T Performance

    2006 GMC Envoy SLT 4x4

  10. #9
    2.5L Iron Duke ZR2 GFX's Avatar
    Join Date
    Mar 2010
    Location
    Canada, B.C
    Posts
    27
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Diesel Def Fix

    My truck is saying that it is out of DEF even though it is full. The dealer can't fix it and they have another one there with the exact same problem
    There's a alot of talk about people having this problem on all the duramax fourms
    http://www.dieselplace.com/forum/sho...d.php?t=401456
    sound like a fix is on the way

  11. #10
    Walking
    Join Date
    Jan 2012
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Diesel Def Fix

    Quote Originally Posted by Envoy4Life View Post
    I personally have never heard of a DEF problem with the Duramax myself, either.





    Your previous post was posted at 6:53 A.M. LOL!! Let people wake up and smell the coffee.


    I live up in Interior Alaska, and so far the temperatures are at an average of -35 F. This morning I woke up and it was -45 F. I bought the my 2011 Silverado 2500HD with the Duramax two weeks ago yesterday, and I have had to take it to the dealership 2 times already regarding the DEF tank. I always have the truck plugged in when I'm not using it. The DEF tank freezes solid, and there is nothing that can be done about it. To be truthfull, I really love this truck. It is comfortable, has lots of power, and I honestly cannot say that I have owned a better truck. The only problem, is that it would be nice to go one week before I have to take it back to the shop. At the dealership, they thaw the tank, re-flash the computer, and that is it. There is a heater in the DEF tank, but it doesn't do much good while it is -35 F outside...

  12. #11
    Firebird Concept (the turbine one) bballr4567's Avatar
    Join Date
    Nov 2009
    Location
    Evansville, IN
    Posts
    15,011
    Thanks
    1,298
    Thanked 2,241 Times in 1,409 Posts
    My Ride
    2016 Camaro 1LT V6 M6

    Re: Diesel Def Fix

    Can you put a blanket on the tank? What about an aux heater?
    Hidden Content

    Some people just don't take the hint. Ignore is such an amazing feature. Yes, I know Ed753 will continue to try to interact. I just simply don't care about it anymore. It used to be fun to argue with a middle aged man who assumes he can do no wrong but these days it's just not worth it.

  13. #12
    GMI Staff Member Premium Member Envoy4Life's Avatar
    Join Date
    Jun 2010
    Location
    Detroit, MI
    Posts
    19,907
    Thanks
    3,036
    Thanked 5,131 Times in 3,329 Posts
    My Ride
    2016 Cadillac CTS Performance

    Re: Diesel Def Fix

    Quote Originally Posted by hunterofalaska View Post
    I live up in Interior Alaska, and so far the temperatures are at an average of -35 F. This morning I woke up and it was -45 F. I bought the my 2011 Silverado 2500HD with the Duramax two weeks ago yesterday, and I have had to take it to the dealership 2 times already regarding the DEF tank. I always have the truck plugged in when I'm not using it. The DEF tank freezes solid, and there is nothing that can be done about it. To be truthfull, I really love this truck. It is comfortable, has lots of power, and I honestly cannot say that I have owned a better truck. The only problem, is that it would be nice to go one week before I have to take it back to the shop. At the dealership, they thaw the tank, re-flash the computer, and that is it. There is a heater in the DEF tank, but it doesn't do much good while it is -35 F outside...

    Can the truck start without DEF?
    Current:

    2016 Cadillac CTS4 2.0T Performance

    2006 GMC Envoy SLT 4x4

  14. #13
    2.4 Liter SIDI ECOTEC WilliamBos's Avatar
    Join Date
    Jul 2006
    Posts
    218
    Thanks
    24
    Thanked 9 Times in 7 Posts

    Re: Diesel Def Fix

    All they need to do is look at what Massey-Ferguson has done with the 8600 series. They plumbed a heating loop around the innerwall of the tank, directly off the engines cooling system. As the tractor warms up, the DEF will thaw. Simple enough, really.
    Thanks & Take care,

    Will

    2011 GMC Sierra 1500 CC 4.8L 4X4
    2004 GMC 1500CC Z71 SLT
    350,000 km/217,479 miles - RETIRED.

  15. #14
    Banned
    Join Date
    Apr 2011
    Posts
    137
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Re: Diesel Def Fix

    I'm awesome like that!

  16. #15
    2.4 Liter SIDI ECOTEC ksss's Avatar
    Join Date
    Oct 2011
    Location
    Idaho
    Posts
    134
    Thanks
    41
    Thanked 31 Times in 22 Posts

    Re: Diesel Def Fix

    I know the location of the DEF tank is causing some offroad problems with those who dont use roads much (farmers, ranchers, contractors, oil rig operations). Some dealerships have had custom DEF tank shielding built and installed. I am also aware of the DEF freezing. I did not hear that they are suspending production. I find that hard to believe given how well this truck is selling, and the fact that they have to over produce to build up enough trucks to maintain GM while the plants start going off line to tool up for the new body style. I cant see GM stop building Duramax trucks because the DEF is freezing or anything to do with the DEF system.

  17. Remove Advertisements
    GM Inside News
    Advertisements
     

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Powered by vBadvanced CMPS v4.1.2