Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

Lb7 no boost

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Old Jun 6, 2013 | 08:52 AM
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jeffmartinjr08's Avatar
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Default Lb7 no boost

I have a 03 pulling a hill with around 15000 lbs and sounded like a hose blew lost boost no leaks put air into the cooler no leaks wastegate is closed can open it with air pressure nothing coming out of turbo for pressure sounds like the turbo is smoked but any other sug. ?
 
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Old Jun 8, 2021 | 08:43 AM
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Tlmservices's Avatar
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Default No boost

Originally Posted by jeffmartinjr08
I have a 03 pulling a hill with around 15000 lbs and sounded like a hose blew lost boost no leaks put air into the cooler no leaks wastegate is closed can open it with air pressure nothing coming out of turbo for pressure sounds like the turbo is smoked but any other sug. ?
did you ever figure out what happen my truck just did this same thing yesterday
 
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