'17 Sierra started following Catch Can Skeptic, Hey guys, I am leaving the forum. I’ve been diagnosed with terminal cancer., Worst day ever and and 3 others
'17 Sierra replied to SS502's topic in 2014 - 2018 Chevy Silverado & GMC SierraSo sorry to hear but fight like you've never fought before..Wish you the best.
'17 Sierra replied to modot66's topic in 2014 - 2018 Chevy Silverado & GMC SierraPerfectly.
A tune and a catch can are on different sides of the world. A tune will allow the engine to exceed its specified operating parameters. A catch can is for preventive maintenance. I would have no ethical problem with removing my catch can for fear I'd be denied a warranty claim...which would never happen anyway.
What he's getting at is if the PCV system is iced up, there's no route for the crankcase pressure to escape and it would continue to build up. I find it hard to believe that it popped a rear main though.
Over pressurization caused by ice would be EXTREMELY rare. If you locate the can near the exhaust manifold ie: bracket mounted to the brake booster, it will thaw very quickly in the rare event that it ever froze. What froze anyway? Oil won't freeze. If the condensation froze, that would be in the bottom of the can and wouldn't affect the air flow anyway. And... I don't believe a catch can would ever be the cause of a warranty denial. If a service manager denies a claim because of a catch can, he'll deny a claim for any bogus reason.
If it's a bad injector, you'd notice a miss; especially if it's open all the time, you'd notice a miss during idle for sure. Probably not rings with so few miles although not impossible. My bet is the HPFP.
I agree that it would be nice to see a study on this. I'm a believer, I have an E2 on mine. The question is how much of the oil in the crankcase vapors is actually caught with a catch can. It might look like a lot but that question has never been answered. That milky substance that many seem to think is REALLY bad for the motor, isn't. That is just condensation that's mixed with the oil that hasn't been heated enough to evaporate yet. Moisture won't hurt anything once it's in the combustion chamber and once the oil heats up enough, the condensation just evaporates, burns in the CC and goes down the line and out the pipe.
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