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1-5 of 5 Results
  1. Gauges, Electronics and Wiring.
    So ive got an lly and a couple months ago my y bridge blew out and I was putting it back in with a pry bar and accidentally broke my fuel pressure regulator. The pig tail was fine and I even put the broken off end in the plug to protect it for when I replace the fpr. A couple months go by of...
  2. 11-16 LML Duramax Powertrain
    So I have a lml having it defuels every so often once I get down on it. Put a air dog 2 4g 200 on it. And still having it happen every so often. What’s the fuel pressure I should have at idle to adjust that pump? Nothing major done to the truck.
  3. 04.5-05 LLY Duramax Powertrain
    While driving the truck I can be on throttle cruising at let's say 12k at the rail. If there's a stop sign coming up I'll let off throttle and the rail pressure will stay at the cruising pressure (12k in this example) and then start creeping up (so demanded is about 4-5k and actual will be...
  4. 04.5-05 LLY Duramax Powertrain
    I know this question has been posted in varius forms and forums, but i have added to many variables into the equation to immediately jump to a head gasket leak. The truck is a 4.5 2500hd gmc, mods that might have influence on the issue are, sinister egr delete, and banks intercoolers. The truck...
  5. 01-04.5 LB7 Duramax Powertrain
    Hi, I have a 2003 6.6 I have about 250,000. Replaced injectors and glow plugs about 4,000 miles ago. Really like this pickup. About a month ago, noticed kind of slugishness. Later that day, started poorly and barely got it in the garage. Been sitting for a month while I was overseas. Came...
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