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  1. 6.5L Diesel Engine
    I need some help before I light my truck on fire. I have been fighting with the timing for a while now. From what I can tell, I have the injection pump physically turned to where I want it. 3.6 degrees average Actual Injection Timing. I have a code 88 that won't go away when cleared with...
  2. 6.5L Diesel Engine
    i was looking for info about scan tools and ran across gmtdscan tech. after a bit of reading i became excited about it but then i noticed there were few or no posts after about 2018. i am very interested in something like gmtdscan tech for my 1999 suburban. anybody know if they are still in...
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