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

exhaust leak

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Old Jan 24, 2010 | 09:13 PM
  #1  
KLOVE's Avatar
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From: West Tennesse
Default exhaust leak

ok so im test drivein this truck and it sounds like it has a exhaust leak comeing from somewhere on the left side (if standing in front) or maybe around the turbo and i can hear it in the cab. took it to a shop felt around the manifold and around the turbo. cant feel any air comein out. Anyone else experienced this before. Any help please>
 
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Old Jan 24, 2010 | 10:51 PM
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so are you hearing a flutter sound?

try and find out where its comming from, pull out the passenger side fender liner and get a better look in there. If it its leaking u going to have to pull the downpipe to get the passenger side manifold off
 
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Old Jan 31, 2010 | 11:46 PM
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look at where the PS lines and the alu boost tubes cross. the PS line will rub a hole in the boost tube.I have seen it a few times
 
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Old Jan 31, 2010 | 11:49 PM
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Originally Posted by ceb0217
look at where the PS lines and the alu boost tubes cross. the PS line will rub a hole in the boost tube.I have seen it a few times

it happened to me, except the ps line got rubbed though, not the boost tube
 
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Old Feb 1, 2010 | 01:15 AM
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we sell almost every one we get in at the wrecking yard where I work cuse its got a hole in it from the ps hose
 
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