8
votes
Does checking for air coming from the oil fill hole tell you that the engine is bad?
It's just an indicator. All vehicles have some amount of blow-by. Since the vehicle you were looking at is probably a brand new car with very few miles on it, it might be the engine is not completely ...
3
votes
Accepted
Is it possible to create a PCV hose with a custom shape?
Yes, it's possible to create your own custom hoses. PCV hoses can be anything from a short run of hose to a complex pipe with brackets depending on the car, so there's really no one general answer.
...
3
votes
Accepted
What is this PCV hose connector near the throttle body?
That is a PVC valve hose assembly. They are inexpensive (less than $10 in my area) and fairly straight forward to replace. This connects the PCV valve to the manifold (the connector you pointed out) ...
3
votes
PCV Valve hose question
Yes, you could use any fuel and oil resistant hose. They are typically made of silicone, polyurethane or rubber. This will ensure longevity of the replaced hose. Have a look at silicone automotive ...
2
votes
Accepted
In the PCV system, is an "Oil Trap" the same thing as a "Breather Box"?
It looks like Volvo is doing something a little abnormal where they have integrated the PCV valve with an oil trap and possibly a couple other components. Lets break it all down:
PCV Valve -- ...
2
votes
PCV Valve hose question
The part you use should withstand high temperatures and must not collapse under vacuum. I think if you use garden hose, it will just collapse and also melt down.
The only hands on experience I have ...
2
votes
Does checking for air coming from the oil fill hole tell you that the engine is bad?
As you are aware, since you tagged your question with it, most (if not all) modern engines have positive crankcase ventilation, which under normal conditions, maintains a lower pressure inside the ...
2
votes
Does checking for air coming from the oil fill hole tell you that the engine is bad?
I'd also wonder if this rather traditional/old fashioned test is entirely applicable to newer vehicles. There's a lot of changes that have happened in the cylinder head (where the oil filler is ...
1
vote
Did I break my PCV system housing?
You can only be absolutely certain you broke it by reading the car's computer with sophisticated equipment when it's beyond threshold level. You can be reasonably certain, however, just by the rough ...
1
vote
Accepted
Where is the PCV valve on my engine, and how can I check/change it?
It should be located in the driver's side (left) valve cover towards the rear, pointing just about straight up. There should be a hose which is attached to it and plumbed into the intake manifold (...
1
vote
Should the PCV breather hose affect fuel trims?
With the pipe disconnected and open to the air (not plugged), as you say, unmetered air will be getting in, bypassing the air flow meter. Therefore the mixture calculated by the engine ECU using ...
1
vote
Accepted
PCV Valve for Ford Focus 2009
Yes, your model has a PCV valve and RockAuto usually sends the right part. There is some confusion because the part number for the PCV connector hose is the same for the PCV valve itself. The part ...
1
vote
Replacement PCV valve unavailable. Will any other do?
According to Wikipedia, the BL O-Series 1.7L was used in:
Leyland Sherpa/Freight Rover Sherpa/200/300 1.7 L, 2.0 l
Princess / Austin Ambassador 1.7 L, 2.0 L
Morris Ital 1.7 L, 2.0 L automatic
Morris ...
1
vote
Smoke coming out of oil fill port
One other piece of information I've come across is that apparently motor oils undergo evaporation naturally when exposed to heat as I just learned watching this episode of Project Farm.
"...
1
vote
Smoke coming out of oil fill port
With respect to measuring the health of the PCV system there appears to be a special vacuum gauge in a small pressure range capable of measuring the subtle vacuums expected in the crankcase. There's a ...
1
vote
Accepted
2002 Toyota RAV4 Stripped PCV Valve Threads on Valve Cover
There are two ways I can think of to "fix" this without replacing the valve cover:
Use a piece of thin rubber, or build up some teflon tape around the threads. The idea here is to just seal the ...
1
vote
Positive crankcase pressure in Astra H 2008 Z14XEP
Sound to me like I would want to rule out a cylinder head gasket, or possibly a cylinder head.
You could have a leak from the coolant to the oil passage, which is causing coolant to mix with oil, ...
1
vote
Planning to fit an oil catch can into my car. Any problems with this setup?
I would assume, from inspection and not knowing your vehicle, that the upper and lower pcv's operate at different pressures (depressions really as below atmospheric) otherwise they would have had them ...
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