Get a catch can before any mods.

[Clean07Burb]

Is this mod worthwhile on an 07 Yukon XL Denali with a 6.2L ???

Most definitely.

I also had Justin turn my AFM off when he did my in person tune and I don't get nearly as much out of my catch can during oil changes as I did before. Good indication that the AFM has a lot to do with oil consumption.

 

[Yuko04]

DOD delete?

Huh?

Jiggy-J

 

[07Burb]

Huh?

Jiggy-J

DOD = Displacement On Demand. Another name for AFM

 

[Yuko04]

Oh... Well that makes better sense...
No I do not have the DOD delete
@14SWtahoe

Jiggy-J

 

[14SWTahoe]

Oh... Well that makes better sense...
No I do not have the DOD delete
@14SWtahoe

Jiggy-J

Cool, just wondering cause I am trying to gauge my next oil change and how much oil would be in my can. This one coming up will be my first change with the AFM deleted.... hoping for good results!

 

[BigBlueLB756]

I Just used the stock fittings. Shouldn't be that hard that you would break fittings

---------- Post added at 10:52 AM ---------- Previous post was at 10:51 AM ----------

You didnt twist the fitting did you? It should twist off if i recall correctly.

---------- Post added at 10:55 AM ---------- Previous post was at 10:52 AM ----------

Or you could just snip the plastic pipe in two, swivel the ends around and slide your 3/8" hose on and clamp them. If you decide to remove the catch can system, a simple 2" piece of hose will make a splice joint to put the stock pipe back together.

 

[CHOO CHOO]

Where would you mount the catchcan?

 

[BigBlueLB756]

I'm running two in series right now (just because I can) and either of these locations are good. Some folks run them on various places on the engine, but outboard is better for oil collection in a cooler place. But that's just me.

Anywhere is better than not having one at all. JMO

 

[CHOO CHOO]

Oh i thought you meant cut the original hose and only use that. Well, nevermind.

 

[TwiztidXL]

Just ordered up my Catch Can today. I didn't see anything on ship times. I'm guessing it is shipping ground. How long did you guys wait to get it in? I'm hoping to have mine installed before I go on Vacation next Thursday.

 

[DisplacedBuckeye]

These aren't necessary for those of us without AFM/DOD, is that a fair assumption from what I'm reading? I didn't notice anything out of the ordinary when I installed my MIT, and it seems that if I were consuming oil like I've seen from those that do have AFM/DOD I would have other problems to address.

 

[RotaryMachineRx]

It's not necessarily a "problem", the oil vapour circulation is by design, albeit a poor design your engine will run perfectly fine for years without a catch can. It is for those of us who prefer to keep the throttle body/intake manifold cleaner. There is risk for this stuff to gunk up over time but this is after many many miles. It is typical in many engines.

 

[ezdaar]

Its a shit design and ALL Manufactures that allow this "oil consumption is normal" shit to go on should be slapped with HUGE fines.

 

[RotaryMachineRx]

Have you ever noticed the oil on your dipstick getting low because of it though? No.

 

[ezdaar]

Me? no. All my engines are tight and have a proper PCV system.

Millions of others? Hell yes. Its all over the forums.
Some have seen as much as a quart loss every 500 miles.

 

[RotaryMachineRx]

So let's say you're changing your oil every 4000 miles... You're saying that people are losing/adding 8 quarts of oil to their engine because of the PCV circulating into the intake in between every oil change.... Get real

 

[CHOO CHOO]

Even 2-3 oz every 3k is ridiculous. Either way, spending 70-100 bucks is worth every penny imo to keep that shit from clogging up.

 

[RotaryMachineRx]

Either way, spending 70-100 bucks is worth every penny imo to keep that shit from clogging up.

Haha Agreed

 

[al2fast]

These aren't necessary for those of us without AFM/DOD, is that a fair assumption from what I'm reading? I didn't notice anything out of the ordinary when I installed my MIT, and it seems that if I were consuming oil like I've seen from those that do have AFM/DOD I would have other problems to address.

No afm here and when I installed the Cai and catch can at 80k on my 09 YD there was a puddle of oil in the intake that you could see when you opened up the tb butterfly. Catches other 'milky' crap in it too. I plan on keeping this truck to 200k so it's cheap insurance for me.

 

[aflumb]

So since i just read the last couple post. Would it be normal for me to not find any oil in my catch can or intake since having DOD/AFM disabled by BBP. But there was some when i first installed my MIT after around the 3k-5k range. But since the tune i have seen any in the intake. 2012 Truck only has 32K