'06 4.2L-Filthy oil inside air plenum.

[59840Surfer]

I was sent your videos on the Trailvoy forum to do the Berryman's fix on the PCV "dirty air" hose. Many thanks for that video, it's awesome, and clearly explains the system and the cleaning process.

I have a follow-up question for you though. Is it the hose that gets plugged up, or something it attaches to in the crankcase, or is it simply a straight port into the crankcase? The hose on mine is split on the intake manifold end, so I'll be replacing it. I wanted to know if replacing the hose also clears the same blockage the Berryman's is trying to dissolve, or can the blockage be beyond the hose inside the crankcase? I did that Berryman's process four times, and still didn't get a vacuum at the dipstick tube.

Honestly ---> that hose is so big I don't think anything less than a ping-pong ball could plug it up.

The problem, as explained in the video - is the runners that feed into the individual intake ports for each cylinder get heavy deposits in them they bake into petrified crud and you have to melt it out with the B12.

You can always remove the intake and poke them clean --- but this is so much neater and I think easier than pulling the intake all the time to clean it out.

Get a new hose before you button it up until the next time you use the B12. Hose clamps are an option as there is no pressure in this side of the system.

 

[mrrsm]

See Post #20 at this Link for a clinical explanation of -= WHY=- this Oil and Debris contaminates the Air Plenum -> Throttle Body -> Intake Manifold -> and finally... Re-Ingestion into the Intake Ports to be re-burned and make the EPA Air Quality and CARB Standards ...theoretically... happier:

SOLVED! - Low oil pressure 4.2L

This Thread may have some additional information on how you can try to passively dissolve the Sludge Build Up down inside the Crankcase and in particular on the Oil Pick Up Tube Screen... WITHOUT having to resort to removing the Crankcase - Oil Pan. If my Engine's Life were in such Danger and I...

gmtnation.com

 

[59840Surfer]

See Post #20 at this Link for a clinical explanation of -= WHY=- this Oil and Debris contaminates the Air Plenum -> Throttle Body -> Intake Manifold -> and finally... Re-Ingestion into the Intake Ports to be re-burned and make the EPA Air Quality and CARB Standards ...theoretically... happier:

SOLVED! - Low oil pressure 4.2L

This Thread may have some additional information on how you can try to passively dissolve the Sludge Build Up down inside the Crankcase and in particular on the Oil Pick Up Tube Screen... WITHOUT having to resort to removing the Crankcase - Oil Pan. If my Engine's Life were in such Danger and I...

gmtnation.com

You were doing well until you got to your: Part B ....

The "clinical" explanation --- and for the record WE are having a clinical observation right now with two people committing abject discussions - involves a hearty YES in that the EPA likes to have any/all contamination self-contained and ultimately rendered as clean byproduct(s) ibid: as is technically possible.

As a retired CalEPA BAR Brake/Lamp/Emission Control Inspector, Installer & Adjuster who knows better ---
♦ --- you have missed the purpose of the PCV/Crankcase ventilation and contamination removal system.

It is not designed to allow any backflow of vapors (except for gasoline, not in this dialog)
- eg. heavy hydrocarbon vapors and by-products) - these are not deemed to be in the conversation of the PCV at all.

Not at all.

You're just trolling the EPA.