Still Not Sold On A Catch Can? Check Here...

[Omar Alvarado]

I have a 2016 silverado 1500 with a k&n intake.....with 62000 miles...is it better to get one now?

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[SS502]

5 hours ago, Omar Alvarado said:

I have a 2016 silverado 1500 with a k&n intake.....with 62000 miles...is it better to get one now?

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I highly suggest you read up on this debate and make up your own mind. This is not a cheesy way out of answering your question but there are valid points from both sides of this issue...me personally, I have one and I have a good friend that doesn’t but I don’t give him a hard time and he doesn’t give me one either. Thus, the make up your own mind comment. 50% are going to tell you YES you need one and 50% will tell you to spend your money on something else. This topic has been discussed, sometimes feeling have been hurt or someone has been laughed at but the bottom line is that it’s your truck and it’s your call. My answer is yes you should. It’s kinda like choosing to eat healthy after living on junk food...may not make a difference in the end but it makes you feel like you’re doing something good.

Edited November 23, 2018 by SS502

[migizi]

I'm in the same category as TXGREEK - frequent full synthetic oil changes - don't anticipate any issues.

 

But since there are mitigating factors....

What are the effects of this carbon concern with the AFM (active fuel management), also known as cylinder deactivation.

are all 8 cylinders intakes equally fowled-up is there a notice issue with 4 of the 8 since only 4 are full time?

 

[SS502]

1 hour ago, migizi said:

I'm in the same category as TXGREEK - frequent full synthetic oil changes - don't anticipate any issues.

 

But since there are mitigating factors....

What are the effects of this carbon concern with the AFM (active fuel management), also known as cylinder deactivation.

are all 8 cylinders intakes equally fowled-up is there a notice issue with 4 of the 8 since only 4 are full time?

 

I can’t give you an honest answer to that question but will ask you one ? Even if only 50% of the cylinders are fowling up...is that acceptable? Not trying to sway you either way, as I posted earlier it’s a valid debate with about a 50-50 split. Do what makes you feel good. 

[BigBlueLB756]

1.  If it's an easy mod,

2.  If it helps the efficiency of the engine,

3.  If it does no harm to anything.

4.  If it's relatively inexpensive,

 

 

 

Do it.

Edited December 18, 2018 by BigBlueLB756

[EDDE]

I recently replaced the air filter in the 2014 I traded last week and when I took off the top air box cover and looking into the plenum I say a lot of oil sitting in there? 

[migizi]

On 12/17/2018 at 6:05 PM, SS502 said:

I can’t give you an honest answer to that question but will ask you one ? Even if only 50% of the cylinders are fowling up...is that acceptable? Not trying to sway you either way, as I posted earlier it’s a valid debate with about a 50-50 split. Do what makes you feel good. 

I'm at 117,000 and mine aren't fouling up...

- I'm asking this question because I am trying to figure out why some of you are having this issue.

 

[SS502]

7 minutes ago, migizi said:

I'm at 117,000 and mine aren't fouling up...

- I'm asking this question because I am trying to figure out why some of you are having this issue.

 

For those on the yes side of needing one it's the belief that this is inherent of the DI engine because there is no longer fuel washing off the backside of the intake valves. Maybe your frequent use of full synthetic oil is helping you, I do not know. Have you bore scoped your intake and looked at the inside and the backside of your intake valves or are you basing this on the condition of your plugs? I'm running one because it's what makes me feel better based on my understanding of the possibility of it happening.   

[migizi]

24 minutes ago, SS502 said:

For those on the yes side of needing one it's the belief that this is inherent of the DI engine because there is no longer fuel washing off the backside of the intake valves. Maybe your frequent use of full synthetic oil is helping you, I do not know. Have you bore scoped your intake and looked at the inside and the backside of your intake valves or are you basing this on the condition of your plugs? I'm running one because it's what makes me feel better based on my understanding of the possibility of it happening.   

have not scoped nor replaced plugs (yet), but do plan on replacing plugs sometime this winter.

 

I have have not experienced any of the symptoms associated with this phenomenon, the engine has been running great, fuel efficiency had not changed. I do change oil frequently with full synthetic at dealer and, and I do use top tier fuel.

 

How many have actually experienced engine problems due to this intake valve concern?

How about an actual analysis of the maintenance performed on those vehicles that have infact experienced intake valve related issues??

 

 

 

 

 

Edited December 19, 2018 by migizi

[SS502]

1 minute ago, migizi said:

have not scoped nor replaced plugs (yet), but do plan on replacing plugs sometime this winter.

 

I have have not experienced any of the symptoms associated with this phenomenon, the engine has been running great, fuel efficiency had not changed. I do change oil frequently with full synthetic at dealer and, and I do use top tier fuel.

 

How many have actually experienced engine problems due to this intake valve concern?

How about an actual analysis of the maintenance performed on those vehicles that have intact experienced intake valve related issues??

 

 

 

 

 

Haven't got a clue but I don't want to be part of the club that does. It's all about personal preference! I know there is a possibility I'm gonna get the flu every year but I don't get that darn flu shot LOL. Just do whatever make you comfortable, like I said in the beginning, not trying to sway you either way and I don't make, sell or advertise for any of the people who do just sharing my opinion.

[diyer2]

This is a no brainier to me, especially if you have a GDI engine.

And the debate continues.

It doesn't hurt anything, easy to install and maintain and not expensive if you shop wisely.

So what's problem?

 

 

[kennerz]

Surprised this discussion is still going on. A metric ton of validation even on GM LT's that this is real. Synthetic oil has no impact on stopping this problem nor does the kind of air filter you run. Only way to tell is to pull the intake manifold or scope your intake valve. Corvettes were showing degradation at relatively low miles. total frog in boiling water situation. No known engine failures but loss of performance, sure. Again proven across many platforms that DI does this.

 

I've ran one since about 2500mi from new and pull a few ounces every time I check the can every 5~7k mi. This is why the LT5 and new fords and Hondas etc are now port injected or both duel fueled. MFG's did not acknowledge it as a condition they just changed the design cause it was soo good? 

 

I'm at 50k now and will walnut blast at some point if needed. Research off this site and find the truth, it's out there. Surprised so many hard heads are like "I think this! or that!" "I don't see it" but have failed to diligently research the DI phenomena. Waaayy more hard evidence that this has "some" level of detrimental impact. Will you blow a motor, probably not. loose performance at some point. probably. how much - don't know.

 

Only good cleaning method from my research are either walnut blasting, or hand scrape/cleaning. supposedly cleaning with chemicals washes hard deposits into the cylinder and could score the walls, and unless you compression/leakdown test you would never know how much damage you did.

[Hillwood]

Let's see some pictures of two disassembled engines with the same mileage..
One with the can and one without..
No proof here... Just speculation..

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[Black02Silverado]

Food for thought.

 

I wonder how many vehicles with catch cans installed and are traded in.  Then the new owner, not having a clue other than to drive and put gas in their vehicle.  Keeps driving it until the can becomes completely full and then starts sucking out all that nasty oil into the intake. 

 

I guess it is still to soon to tell but in another 10 years or so I bet this becomes an item.  Like, hey guys, I just purchased a nice Silverado/Sierra and when I got it home I noticed it having issues and so I took it to the dealer and they said that the previous owner installed a catch can and it was full and sucking oil into the intake and it killed your CATS from burning all that blow-by product the can caught, or the intake is completely gummed up with oil and such.

 

I'm sure when we all sell our vehicles with catch cans we all take them off but there might be those that don't.

 

Do you think this will happen?   Just curious.  There are more out there that purchase and just drive than those that really take care of their vehicle and to me it is only a matter of time.

 

It will become the norm that when you purchase a used vehicle you check to see if it has a catch can, and then you wonder if it was taken care of or left alone and now can cause issues.

 

Again, just food for thought, not saying either way it is a good or bad thing to have a catch can.

[Grumpy Bear]

21 minutes ago, Hillwood said:

Let's see some pictures of two disassembled engines with the same mileage..
One with the can and one without..
No proof here... Just speculation..

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You mean take the mask off the Old Lone Ranger? Isn't it much more fun to just endlessly debate maybe, if's and's and buts? 

If frogs had wings they wouldn't bump there butts when they jump! 

 

On ‎12‎/‎17‎/‎2018 at 8:39 PM, BigBlueLB756 said:

1.  If it's an easy mod,

2.  If it helps the efficiency of the engine,

3.  If it does no harm to anything.

4.  If it's relatively inexpensive,

 

 

 

Do it.

Does that look like an air compressor separator or what? 

 

1. Easy? Check

2.) Helps efficiency? How? Key word efficiency. Thermal efficient? Fuel efficient? How does it help Efficiency? 

3.) If it harms nothing? Great reason to speed money. I spent money and it does nothing. 

4.) "Relatively inexpensive"? $500 for a beer can and some garden hose. How is that relative?