Sarcasim? haha. but seriously..is not having the pcv reroute what caused all that?

 

Yes. Dude that's alot of nasty oil blowing thru your intercooler pipe. I would take it off and clean out both intercooler boots and reinstall after you do the Reroute.

Here is a link for the Billet plugs.

And another Link for Billet plugs and PCV Kit.
:drink

 

Ok thanks. I drive on very few paved roads so thats why everything is so dirty. But clearly there is some oil around there causing the dirt and mud to stick to it.

 

deleted

 

Did this mod earlier today, was such a simple mod I decide to take the intercooler tubes off and clean them inside and out..... yes there was plenty of oil in them but not any more! thanks wolfn8tr
Also I used the billet stuff from a DRP kit, great fit and finish.

 

No Problamo....:drink

 

WOLFN8TR

Your writeup said that the lines from the valve covers were 5/8 but you used a 3/4 t-fitting. Why not use a 5/8" t-fitting? Just wondering.

 

The 5/8" Hose fits perfectly over the plastic pipe from the OEM PCV line you need to cut. It also fits onto the brass fittings nice and tight. Got the fittings from Lowes.

 

how would someone go about cleaning out the intercooler, take it out?

I would assume simple green would be good I use it for everything out.

If you just clean the tube the oil that has collected in the cooler will eventually work its way back into the tubes I would think, plus the coating of oil in it I would think reduces it efficacy. So since I will have a bunch of free time I was tinking about cleaning out the cooler too.

How hard is it to remove?

 

did you ever figure this out?

 

subscribe

 

Will this MOD throw a code in my truck with a stock tune?

 

Nope....

This is the first Mod I did to my truck when it was stock. I had oil all over the intercooler tube, now it's nice and clean! If you have smog checks make sure to put it back to stock config. Some check it some don't. Go with the Billet plugs, got mine at Madjacksracing. They have both plugs shown on page 1.

 

With the line coming out underneath the truck, does any oil leak out of that line while it's sitting in say a nice white paved driveway? Could you also do a catch can setup?

 

Not a drop. You could but not necessary.

 

Kewl... Thanks

 

cool thanks

 

Maybe a dumb question, but what exactly is being routed into the intake when everything is stock? Where is the oily air coming from?

 

When your pistons move up and down and compresses the mixture to be burned, some of the compression escapes from the cylinder, moving past the rings. As it moves past the rings, it picks up tiny droplets of oil from the rings, the cylinder walls, the piston and ultimately from the oil mist floating around the inside of the engine. This air, a byproduct of the compression and pumping process, is also sometimes called 'blow-by'. It creates positive pressure in your crankcase and must be vented to keep it from pushing out the air and oil mixture where you really don't want it to come out. So the usual process is to route it back into the intake side of the engine and burn it. In our turbo diesel engines, this causes a problem because after the intake air, which also now contains our 'blow-by' and the related oil, is compressed it is sent on a fairly long path from the turbo compressor, thru the intercooler, thru the intake tubes, and the oil settles on the walls of the intercooler and the intake tubes. And this oily air, when combined with the exhaust gas from the EGR system really makes a mess of both the turbo and the exhaust manifold.

When you do the PCV reroute, you are removing the air and oil mixture from the engine and routing to to the outside air, if you do it the most common way. This keeps the oil out of your engine but puts it in the air and pollutes the air. Another way to do it is to route the blow-by to a container where the oil and air can be separated (not perfectly separated, but most of the larger droplets anyway) and the air returned to the engine. And the oil is not put back into the intake of your engine, to make a mess of the intercooler and the intakes tubes. The oil from the blow-by is collected in the container and the container is emptied when the engine is serviced, most likely when you change your oil or when the container gets full.

 

Awsome write up Ron. Thanks.

 

Will a 2" test plug fit into the resonator outlet just like the LLY reroute set up?

 

I believe it's just shy of 2". Here's a link for the Billet plugs. You don't have to worry about them getting sucked into the engine and there is orings on them for a nice tight fit.

GM Duramax - Diesel Race Parts/Block Plates/PCV Re-Route Kit

 

I've installed a two inch test plug and it fits like a glove. Seals well and is a nice tight fit.

 

2" test plugs are complete shit under the hood IMO. They just look like trash, but they are cheap and they do the job. Merchant Auto has resonator plugs for $8 and they look better than your ACE hardware run.

Just did the reroute on my LMM a couple weeks ago and I didn't bother with any T fitting cause it's stupid IMO. I just ran 2 hoses and zip tied em to the frame and done.

 

New to all this and wondering if doing this mod would throw codes? I have a quadzilla already but doubt that helps...

 

No, you'll be fine. No tuning necessary for a reroute.

 

Just want to give an update on this....
Have about 10,000 miles on my pcv reroute and no problems. Checked everything over when changing the fuel filter and everything looks good! My interooler tubes are spotless on the inside, no more oily stuff.

 

Is it worth to do egr block off after this? Or does this takes it place?

 

PCV has nothing to do with the EGR system. Yes, you still need to block off the EGR system


Sent from my Autoguide app.

 

That's not entirely true. If you reroute the PCV it keeps all the oil out of the EGR valve reducing the oily sludge build up. Yes you should really do both but I would at least do the PCV Reroute. If you have to smog your truck then blocking the EGR might not be a good idea.