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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 ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
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) ...
CharlieRB's user avatar
  • 9,015
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. ...
barbecue's user avatar
  • 1,597
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 ...
DizzyFool's user avatar
  • 1,571
2 votes
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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 -- ...
Cc Dd's user avatar
  • 2,879
2 votes
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Where is the PCV valve on my 2011 Ford Focus SES (Duratec engine)?

The Haynes manual is correct you need to remove the intake to access the PCV valve. The hose from the valve cover to the intake tube is a breather hose. The valve in question.
Ben's user avatar
  • 10.7k
2 votes

Is the vent from the pcv valve back into the air intake really needed?

I think everyone is missing the point of the catch can in the first place. The catch can sole purpose it to keep oil from going into your intake and being burn, which is BAD for the environment. You ...
MacSpec's user avatar
  • 29
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 ...
Dave Tweed's user avatar
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 ...
MarkP's user avatar
  • 71
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 ...
Evren Yurtesen's user avatar
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 (...
Pᴀᴜʟsᴛᴇʀ2's user avatar
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 ...
HandyHowie's user avatar
  • 25.4k
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 ...
Solar Mike's user avatar
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1 vote
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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 ...
Carguy's user avatar
  • 1,967
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 ...
NitrusInc's user avatar
  • 763
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. "...
jxramos's user avatar
  • 1,850
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 ...
jxramos's user avatar
  • 1,850
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 ...
Pᴀᴜʟsᴛᴇʀ2's user avatar
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, ...
mongo's user avatar
  • 2,115

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