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I keep getting PM's on how to do the PVC REROUTE so here it goes.
PARTS NEEDED
1/2 to 3/4 copper elbow
1" Barstool Cap
5/8 Heater hose
2 hose clamps
Optional 2 inch test plug

Go to Home Depo or a place like that. Go to the plumbing section and get a 1/2 to 3/8 copper 90 degree elbow, and if you want to block your resonator box at the same time get a 2 inch test plug. Then find a bar stool cap in the store.

Then go to your local parts store and get some 5/8 heater hose and 2 hose clamps. Length of hose will depend on where you want the hose to end. I used around 9feet.

Then pop the hood on your truck remove the resonator box

Then take the PVC hose going into the intake off.
Put the Barstool cap on the intake side.


Then take the 1/2 to 3/8 copper elbow and put the 1/2 side into the stock PVC hose. Then take the 5/8 hose and run it down the frame.


I ran mine back to the fuel cooler and put a filter on the end of it. The filter is not needed. Only pressure comes out of the PVC it does not suck so nothing will go into the engine if you do not run filter.


Since you are here if you want you can cap the Resonator if you want. It made my turbo louder.

This is a 2 inch test plug


Test plug in the hole I put a lock nut on for safe keeping
 

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Im new but what does the PVC REROUTE do exactly. Do the LB7 need it? hanks for the info.
 

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Thank you for the fast post!!! Anyone else know if the LB7 has a PVC. How much for total parts.
 

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Psyco, Great write up! Of all the ways I've seen this done yours seems to make the most sense and the easiest to do. I'll definitely invest $20 in your system rather than $100. for the "Burkhard Kit". That must be for show trucks or people with money to throw away. Yours makes it simple to return to stock if you ever had to also. Thanks again for taking the time to post this!
 

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Whats the benefit for the reroute? I have done the resonator plug but pondering on the reroute.
 

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AWSOME post thanks for the info!!
 

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I did a re-route on a 6.5T chevy that looked similar years back and it made the engine drink oil like crazy til I changed it back. How bout the d-max does it change oil comsumption?I know most diesel's have a tube out of the valve cover then vented under the engine.
 

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Thank you for the fast post!!! Anyone else know if the LB7 has a PVC. How much for total parts.
the lb7 duramax for your year of truck does not have a pcv system it only has a crankcase breather system instead of crankcase fumes bieng sucked into the turbo it simplly has a baffle in each valve cover that is connected to an open breather hose that runs down the side of your block.
 

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getting back to change sig.

It keeps the oil out of your inter cooler boots.
how do i get back in to change or add to the sig. cant seem to find a way to get back to do it and did not add anything when i first came into this site, and i do enjoy the site, thanks.
 

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good write up gona do this this weekend. i used a rubber cap that goes on the outside to remove resonator and titens with a hose clamp so i dont have a steel bold haning over my turbo inlet. wear do u get a filter for the pvc like that, would a catch can like on a turbo car be better? thanks for the info.
 

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Discussion Starter · #17 ·
All years need it.
 

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Ufreak,
Where did you find a cap for the resonator? Is it heat proof? I would rather have a cap also. Let me know where to look for one or what they are called. Thanks...
 
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