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  1. 04.5-05 LLY Duramax Powertrain
    Hello, I have a 2005 lly duramax. I recently did head gaskets and studs on it. In the process I put new injectors hard fuel lines , return lines, intake,up pipe, y bridge. Air dog 150 and cp3 pump now currently I am having a problem where when I accelerate hard in lower gears it pops and there...
  2. General Discussion
    Hey lads, started some research but didnt get much further other than thinking its my cp3 going faulty or possibly injectors?? Every odd time I open the old girl up or lay into her a decent amount it responds by going into a "limp mode" where it wont go over 2,000rpm. I have to shut the truck...
  3. 04.5-05 LLY Duramax Powertrain
    hello, just joined the forum, looking for help. im new to diesels but know a little bit ive got an 04.5 lly thats having issues starting, doesnt matter the temperature. the truck will crank and crank, but absolutely will not start unless a quick shot of starting fluid is introduced into the...
  4. DF Video & Picture Section
    Hey all, I've been reading a lot on these forums since I picked up my LLY and thought I would share some of the progress that I've been making on it for any that want to watch. So far I've done the following: New Headlights, New Tail lights, Turn signals, Shocks, Airdog Lift Pump, New Mirrors...
  5. General Discussion
    Hey everyone, 05 LLY 479xxx.. just bought the truck tuned with a banks six gun tuner. I was running tune 5 on the tuner and was driving down the road without issue, all of a sudden “service brake system, service 4wd and service abs” lights all came on and the truck turned off like someone...
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