Catch can and pre-detonation

[Rodeoflyer]

I was having some pre-detonation/low speed ping and after installing a mishimoto catch can last week it's completely resolved. I opened the catch can this morning and a good bit of oil came out.. I haven't seen anything like this since an engine with massive blowby back in the 80's.. It's hard to believe the motor was designed to work this way. I only have 9k miles on it. Is everyone who's installed a catch can catching this much oil?

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[Rodeoflyer]

I understand but the low speed pinging was driving me nuts.. it was definitely from the oil dilution.

 

[Rodeoflyer]

In my sig, the 3.6l pentastar. I guess I'll just call this a win and enjoy the resolution. My low speed ping is completely gone. I do offroad several times a week in CO so I'm driving up and down some extreme angles. That could have some effect on how much is pushed through the vent.

 

[Cthehentz]

Why didn't you take it to the dealer before adding aftermarket devices?

 

[Rodeoflyer]

Exactly! Dozens of low speed ping threads on this forum. I haven't seen a single resolution, other than 'works as designed' and 'some low speed ping is acceptable'. I've owned a LOT of vehicles, mostly modified and have never dealt with low speed ping like this jeep. It's probably a tuning issue (epa, mpg and emissions) but there are no aftermarket tuning options yet.

 

[Rodeoflyer]

This is def the same situation yet 21st century. It's a tuning issue no doubt. I'm unsure whether it's altitude specific (I live at 8000ft) or the offroading I do pushing more oil through the system.

 

[Rodeoflyer]

I also have a manual transmission which seems to exacerbate this problem. But it's a non-issue now so I will carry on and remove the catch can if I need service. I do have a 125k mile bumper to bumper warranty through my lien-holder.. once aftermarket tuning is available I'll be doing that as well.

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