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cooling
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  1. 01-04.5 LB7 Duramax Powertrain
    I'm not sure if I'm just being paranoid or if I'm really starting to have some issues. I've noticed lately that my operating temps (oil and tranny) stay around 210 (oil) and 200* (tranny). I know that these are "normal" operating temps and I expect it when it is 90* + outside. My concern is...
  2. General Discussion
    I understand that there are a ton of threads about lly's overheating but I am looking for suggestions. Our 2004.5 lly silverado duramax started overheating while towing. It carries about 2000 lbs all the time because it is my dads work truck. Semi-regularly we use it to tow an enclosed trailer...
  3. 06-07 LBZ & LLY Duramax Powertrain
    Hey guys I am having some trouble with my transmission getting too hot. I have a 2006 GMC Sierra 3500 with 140,000 miles on it. 6.6/Allsion. First I was driving home in traffic on a very cold day. I had remote started my truck and it setting idling for a while and I believe at the time I had...
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