Duramax Diesels Forum Truck of the Week
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Old 12-05-2017, 01:36 PM
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Default Leak from this pipe??? HELP

I believe I have a leak from this pipe at the connection, any idea on how to tighten this or aftermarket parts for sell to fix it. Also I'm not sure what you call this pipe, I'm pretty sure it goes from egr to intercooler. I cleaned alot of soot buildup from around it, is why I think it has a leak

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Old 12-05-2017, 02:06 PM
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There normally will be oily stuff around the connection. Take the intake off the turbo and cap it and pressurize it. That’ll tell you if you have a leak.
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Old 12-05-2017, 03:52 PM
jlawles2 jlawles2 is offline
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The black plastic pipe is the cold side charge air cooler pipe. It goes from intercooler to intake. It seals using an o-ring.

The EGR cooler is under the intake pipe running parallel to the exhaust manifold it ties to the intake behind the alternator.

Grid Heater is the rectangular thing with the green plug and red wire going into it.
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Silver Birch Metallic 2004.5 GMC K2500HD with 265/75's
Banks super scoop, tubing, intercooler, and cat back with the IQ on the Window (for now). BD driver side Exhaust manifold.
Airdog 150 on frame rail. Amsoil synthetics for lubrication, and dual Amsoil filters on the driver frame rail. PPE centrifuge install.
EGR blocked. PCV rerouted. Resonator blocked (reinstalled for looks). Bladerunner installed. Dead kitty by MBRP (front pipe) and down tube replaced with the MBRP (heat wrapped from the turbo down to the front pipe).
Performax Gauges by ISSPRO in pod over mirror and overhead console (console pod by PPE). Mike L Transmission.
----Looking to do an onboard air with a set of truck air horns. Want Nathan K5LA's but not in the budget at the moment.----

06 GMC CCSB 2WD LBZ SLT package. Traded for '17 Denali

18 Denali CCSB 2500 4WD Mineral Metallic with Cocoa/Dark Sand Interior
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Old 12-05-2017, 04:32 PM
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08bwilliams33 08bwilliams33 is offline
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Ok thanks for the help, I just bought the truck tryin to fix minor things wrong with it. Also I bought an edge evolution programmer for cheap with cts2 still can't get mpg over 12 with an easy foot so I'm tryin to narrow down what could be wrong. 285 size tires btw

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Old 12-05-2017, 04:56 PM
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Spend the money and delete it. Money well spent on the lmm
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Old 12-05-2017, 05:10 PM
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It's a lbz, but yea I'm tryin to talk myself into it. If I knew for sure it would be a help I would buy it. And also not sure if I just want to delete it or block it (egr)

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Old 12-05-2017, 05:21 PM
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Sorry I read thru the post really fast and saw your name and assumed it was a 08. Even with that buy the egr delete. The crap the egr puts in a motor is insane.
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09 lmm ltz, mpi s480 over stocker, big dipper trans, 60 overs, 10mm stroker pump, ppe up pipes and manifold, banks intercooler & exhaust, airdog165, traction bars, the list goes on
01 lb7 red RC/LB 11.58@119 MPH, SOLD
01 lb7 Black CC/LB, SOLD
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Old 12-05-2017, 05:23 PM
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Also don't have tuner to block the code

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Old 12-06-2017, 12:09 PM
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Soot and oil there is normal. Are you hand checking your mileage? The truck mileage reading is wrong most of the time. 12mpg driving in the city with idling to warm up and winter fuel doesn't sound that bad.

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Old 12-06-2017, 07:36 PM
jlawles2 jlawles2 is offline
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You can always block it and put a "Finger Stick" on it. They are available online from https://www.kennedydiesel.com/detail.cfm?ID=525 and it alters the MAF reading to make the computer think that it is using EGR gases even though its not. You leave everything in tact, just install a solid no hole stainless "gasket" plate between the up pipe EGR flange and the cooler.
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Silver Birch Metallic 2004.5 GMC K2500HD with 265/75's
Banks super scoop, tubing, intercooler, and cat back with the IQ on the Window (for now). BD driver side Exhaust manifold.
Airdog 150 on frame rail. Amsoil synthetics for lubrication, and dual Amsoil filters on the driver frame rail. PPE centrifuge install.
EGR blocked. PCV rerouted. Resonator blocked (reinstalled for looks). Bladerunner installed. Dead kitty by MBRP (front pipe) and down tube replaced with the MBRP (heat wrapped from the turbo down to the front pipe).
Performax Gauges by ISSPRO in pod over mirror and overhead console (console pod by PPE). Mike L Transmission.
----Looking to do an onboard air with a set of truck air horns. Want Nathan K5LA's but not in the budget at the moment.----

06 GMC CCSB 2WD LBZ SLT package. Traded for '17 Denali

18 Denali CCSB 2500 4WD Mineral Metallic with Cocoa/Dark Sand Interior
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