answersLogoWhite

0

Crankcases and PCV Valves

Basically, a crankcase is the casing for the crankshaft of an internal combustion engine. Combustion produces pressure within the crankcase. Positive crankcase ventilation (PCV) valves regulate the vapor pressure within the engine and recycle it back into the engine.

1,344 Questions

How do you do a compression test on a car engine?

Remove all spark plugs.

Insert compression gauge in cylinder #1

Hold throttle open and crank for 5 seconds.

Record reading.

Repeat on all cylinders.

Remove all spark plugs.

Insert compression gauge in cylinder #1

Hold throttle open and crank for 5 seconds.

Record reading.

Repeat on all cylinders.

Where is the PCV valve on a 93 ford bronco 5.8?

On the 91 5.8L, and Im sure the 93 is the same. Its located at the rear of the engine, on the passenger side. its a short small hose attached to the top of it and about a 3/8" hose on the bottom. This hose goes into the intake, behind the air intake housing, its kind of hard to get it back in, but you can do it

2001 Mercury cougar PCV valve location picture?

beside the LIM(lower intake manifold) the UIM has a gold peice under the throttle body that slides into the tube of the pcv valve beside the LIM(lower intake manifold) the UIM has a gold peice under the throttle body that slides into the tube of the pcv valve

Where is the location of the PCV valve 3.0 Ltr Mazda Tribute?

Pcv valve on a 3.0L V6 Mazda tribute is buried under the intake manifold. It is approximately under the throttle valve. It is NOT inserted into a rubber grommet in the rocker cover. It is screwed into the lower intake manifold. Use a deep 7/8" 12 point socket to twist it 90 degrees to the left to remove it and reverse this to put it in. Be sure to replace the PCV valve when replacing the spark plugs since all needs to have the intake manifold removed to get to them.

Normally located on top of the valve cover.

AnswerMost are inserted into a rubber grommet in the rocker cover.

Where is the PVC valve located on a 2004 Kia Rio RXV?

Take off your Plastic cover on the engine, (keep bolts in grooves and lift whole plastic cover w/bolts), facing towards engine, look on the top right corner of the valve cover (you will see two vacuum lines attached to the head/valve cover. Bottom line (one closest to you) should be attached to the PCV valve. You should see a pinch clip (remove vacuum line at this time) and rotate left (facing PCV valve) to remove. If valve is going you might see some oil seepage around top right corner of valve cover due to pressure build up. Hope this helps, I have a 2002 Kia W/1.5L not 1.6L but should be similar.

Where is the pcv valve on a vauxhall astra mk4?

PCV= Positive Crankcase Ventilation.

It will be in the cylinder head cover.

Why does Air blow out of valve cover?

That would be "blow by". Some blow by is normal. It is the amount of combustion that bypasses the rings. If the amount is enough to actually feel you may have an internal engine problem.

Why are there are two inlet and two exhaust valves in a car cylinder?

this is also know as dohc this is to make the engine more fuel efficient and also to give a little more kick to the engine when you lay in to it using both valves allow the engine to bring in more gas at high rpms and let out the exhaust the same way these are in the newer engines because with dohc there is less chance for thing to brake and make the engine more powerful then a regular sohc

Where is the PCV valve on a 1996-1999 Sable 3.0 Duratec 24v DOHC?

The PCV valve is on the right side of the engine compartment, if you're facing the front of the vehicle, just under the air intake hose. Its not directly on the engine but rather inline with the oil separator tube/hose.

A) To access this area and change the PCV valve just follow these directions. They aren't as complicated as they seem... # using a 5/16" socket, loosen and remove the positive side cable of the battery.

# using a 5/16" socket or nut driver, loosen the worm drive clamp that holds the breather hose onto the manifold.

# next unsnap the clamps that hold the breather hose to the air filter housing.

# noting their positions disconnect the 3 airlines that connect to the breather hose.

# disconnect the 2 electrical connections from the air intake hose. The front one is the mass air flow (MAF) sensor and the back one is the intake air temperature (IAT) sensor, remove the air intake hose and set aside.

# now using a 5/16" socket remove the 2 screws holding the throttle cable cover.

# remove the 2 screws holding the throttle cable bracket. You now have the best access to the PCV valve. B) Now to replace the PCV valve pull the u shaped hose off the elbow. I recommend purchasing this molded new hose for about dollars from your Ford dealer. They tend to clog or collapse after several years. Next simply pull the PCV valve out of the oil separator hose and insert the new one. The whole process can be done in 15 to 30 minutes and save you a lot. C) Now just reinstall everything in reverse. The PCV valve is located on the drivers side, underneath the silver intake manifold. Follow the black accordion tube from the air cleaner to the throttle body valve. Place your hand on the bottom of the throttle body and you will find the PCV attached to two short rubber hoses. Hand access is limited, so you have to feel for the PCV and blindly remove the hoses from the PCV. Be patient, and allow time to finesse the new PCV onto both hoses. While you're at it, be sure to check the condition of the connecting hoses. I found one of mine to have totally collapsed on my 1998 DOHC v6. there is a pcv valve. it is located under the "snorkel" of the upper intake manifold. it is accessed by removing the vacuum line from the front valve cover at the rubber connector between the air filter housing and throttle body(swing out of the way, to the left is best). next remove the two screws that hold the throttle linkage cover in place and remove the cover. third remove the throttle return spring. you can now reach the pcv valve for removal and replacement. It's at the right rear corner (facing the engine), tightly underneath the throttle body. It is in-line in 1/2 inch or so diameter hoses - look for where the one of these hoses takes a 90 degree turn. 97 Merc sable, 12, valve, 3.0 liter, vulcan engine: located on top of intake manifold box, vertical position facing down. manafold box is on passsenger side, near firewall. horizontal hose extends to the right.

Where is the PCV valve in a 1998 altima?

the pcv valve on altima 98 it is located on the passenger side, right next to the idle valve u have to take the oil filter out, the idle valve, but still difficult to acces it takes at least 3 hours that's how long i spent doing it

How often should PCV valve be changed?

Generally I would check it every 30k, and change it every 60k. They're not that expensive, and it wouldn't hurt to replace it a little early.

Where is the PCV valve in a cadillac deville located?

It should be on the drivers side of the motor coming out of the valve cover. There should be a rubber hose about 5/8" in size attached to it.

How do you remove the PCV valve on a 2001 Chevy Impala?

there are 2 wires coming in front of engine wear the drive belt is on the top of the engine push down on them and turn like you was changing a light bulb its under there

Where is pcv valve located on 302 engine?

Usually on the passenger side valve cover. If you look at the vaccum routing sticker it will show it's approximate location.

Where is the PCV valve located in a 2000 Ford Focus ZX3 with dohc?

I have been looking for the same answer for a while. Nobody can help me. A autoparts salesman said it was in between the firewall and the engine but I did not see it. Supposedly a pain to find??? Sorry, I'm waiting myself. The easiest way to find the PCV on a 2000 ZX3 (ZTEC engine)is to stand directly in front of the engine and look at the right side of the oil filler cap. From there, approx 10 inches directly below the the right side of the cap, you will see a black rubber hose/tube (3/4 inches)inserted into a rubber gromlet--the PCV valve!! If you were to follow the hose/tube back through the emission components, you would find it connects to the lower rear of the throttle body. I found this hose/tube to be melted and also replaced it. perot@charter.net I have an 01 Focus ZX3, I replaced the the PCV valve a day or two ago it's located on the front of the engine, to the right and just below the exhaust header! It's in a part of the oil system called the oil pre-heater and it's basically there to releive pressure in the oil system. To remove it find someone with smallish hands because it's in a very tight spot simply pull it out of the pre-heater and disconect it from the breather hose and push the new one back in to it's place and re-attach the hose. There are no tools needed just the valve and a set of small hands. I HIGHLY recomend that you do not run your engine for atleast and hour before you try to get at it. Have fun I know I did!

Where is the crankcase drain plug on my 73 Yamaha rt3 360 two-stroke enduro?

There are two drain plugs on the RT3's Both are on the bottom of the crank case. There is one on the generator side and one on the clutch side.

Location of the PCV valve on a '98 Honda Civic DX?

Mine is Civic DX 97. Believe it's the same. Get under your car, take off your oil filter, your PCV valve is right above your oild filter. It's recommended to replace it from there. Good luck!

How do you locate the PCV valve on a 2000 Chrysler-Plymouth Neon 2.0L OHC?

When you are looking at the engine from the front of the car...It is on the right side of the valve cover. It has a tube that goes down to your intake. It will need a wrench about 3/4" or so. It will unscrew from the cover. Good luck! July24/05

Location of PCV valve 2002 Toyota Camry?

It should be in the valve cover, there is a little hose connecting the valve the the throttle body.

Where is the PCV valve located on a 95 Chevy Caprice?

On the passenger side valve cover. Should have a black hose coming from it to the throttle boday