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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 change a PCV valve filter on a 1990 Lincoln town car?

Look down on the valve cover on the passenger side of the engine.against the firewall there will be a hose that comes from the air pump, wherever the hose goes, the pcv valve will be at the other end.

What is the engine crankcase?

the crankcase is below the engine block and holds the crankshaft

pasta master

How check PCV valve?

You can just blow into both sides. it's a one way valve.

Where is the PCV valve located on a Dodge Ram 1500 5.7 Hemi?

It is on top of the intake manifold. Take the intake plenum off (the plastic cover that says hemi 5.7 on it). Its on the passenger side almost at the firewall. Its right above where the pipe from the egr valve connects to the intake. And it is not like a conventional PCV valve, it gets unscrewed 1/4 turn to get it out and then reverse to install.

PVC joint leaks how to fix?

Pvc not properly put together or was not glued, Turn off main water supply cut out leaking area replace and put back together. Make sure you measure PVC so that you will purchase correct size.

Pcv valve on 4 cylinder Malibu?

it is at end of vacuum hose, on top of valve cover..

What happens if you bypass PCV valve?

A few things can or will happen. You will most likely increase your engine life, especially if you are using low quality fuels (those containing ethanol). Greater fuel milage if you a running pure gasoline (Shell, Chevron, etc.) You will have less carbon build up in your cylinders. EPA fines if you get caught. You may increase crank case pressure (not good). Make sure you have a way to safely vent positive crank case pressure. Make sure you completely seal PCV valve inlet on the intake manifold. Good luck!

How do you know if you have a thrown rod?

If you have a thrown rod, you will have a loud rhythmic banging noise that changes frequency with the engine RPM speed. The sound will be quite like the sound when banging two hammers together. You will also have extremely low or no oil pressure.

If the engine is not stopped immediately, the problem can quickly progress to the point where the piston rod can break and leave the engine. The is the final definition of a "thrown rod"; your engine was tired of it sitting on the couch all day and threw it out with the trash ... along with other misc. parts (pistion, side of block, oil pan, etc.).

A thrown rod is a serious condition that, if the car is not shutdown quickly, can lead to a dangerous situation on the road. Remember all that oil in your engine (4+ quarts)? If the engine throws the rod, it will dump it all over the road leaving a very slick streak to where your car comes to a stop. One gallon of oil can spread to cover an incredible amount of tarmac.

Pcv valve 2004 Chevrolet silverado?

It is on the top of the driver side valve cover. It has a rubber hose hooked to it.

Where is the PCV valve on the 03 dodge durango 4.7?

The PCV valve is located on the passenger side of the engine bay, directly connected to the engine oil filler tube/funnel. It is an L shaped plastic tube, with rubber hose attached to one end, and the engine oil filler tube/funnel on the other. For ease removal, detach the rubber hose first. Then twist the PCV valve about 1/4 turn until you feel a slight click and then gently pull to remove. Only try to remove the PCV value when the engine is cool. There are hot pipes near by that can easily cause a burn/blister.

What is landing valve?

There is two kind of water supply to fire department one is called hydrant which is there on the ground and other is called landing valve which should be there in all the floor where we cant install hydrant. Its a simple valve like aur water tab when you open it you'll get water so the fire department people connect there water hose to that valve to get water to extinguish fire. The normal pressure shuld be 65 psi. Ex: If there is 11 storey builing then there should be one hydrent on the ground floor and 10 landing valve one on each floor. For image of landing valve you can search google image. I think this information is sufficent to you.... if you need more info then send me mail at haleem09@yahoo.com There is two kind of water supply to fire department one is called hydrant which is there on the ground and other is called landing valve which should be there in all the floor where we cant install hydrant. Its a simple valve like aur water tab when you open it you'll get water so the fire department people connect there water hose to that valve to get water to extinguish fire. The normal pressure shuld be 65 psi. Ex: If there is 11 storey builing then there should be one hydrent on the ground floor and 10 landing valve one on each floor. For image of landing valve you can search google image. I think this information is sufficent to you.... if you need more info then send me mail at haleem09@yahoo.com There is two kind of water supply to fire department one is called hydrant which is there on the ground and other is called landing valve which should be there in all the floor where we cant install hydrant. Its a simple valve like aur water tab when you open it you'll get water so the fire department people connect there water hose to that valve to get water to extinguish fire. The normal pressure shuld be 65 psi. Ex: If there is 11 storey builing then there should be one hydrent on the ground floor and 10 landing valve one on each floor. For image of landing valve you can search google image. I think this information is sufficent to you.... if you need more info then send me mail at haleem09@yahoo.com

What is an engine number?

The engine number on a motorcycle has the main function of identifying the engine. The number is also known as a VIN or Vehicle Identification number. This is a code that contains information about the producer, the model, the size of the engine and other relevant technical aspects, as well as the year the particular motorcycle engine or bike was manufactured. It also identifies the producing plant and the country the engine was produced in.

The VIN numbers are standardized according to the National Highway Transportation and Safety Administration, also know as the NHTSA. The numbers, found on the right hand side of the steering head, consist of 17 characters including numbers and letters. Before 1981, motorcycle producers had their own unique methods to assign such coded identification and there was no international standard. Motorcycle engine numbers are important in order to identify bikes without license plates or documents so the owner can be traced. The number or VIN code is also important when it comes to buying and selling the vehicles, as the prospective buyer should check if the number matches the one of the identification or registration papers. The number can thus be used to check and identify the owner and any possible lien holders, such as banks or financial institutions. Buyers should check these things carefully before paying hard cash for a motorbike so as not to have a setback later because of being unaware of these things.

PCV hose on 98 Fort Explorer 4.0 location?

PCV located on top of driver valve cover closer to firewall - easy to get to and replace.

Where is the PCV valve in a v6 magna 1995?

Hi,

I changed the pcv valve on my 95 magna (auto) today, and hopefully I can describe it's location for everyone (although, I believe that there are some parts that differ in the 95 models and I am unsure if they differ from auto to manual, but this is where it is in my car and how I replaced it...):

When you look at the engine, towards the back and slightly to the left there is a hose connected to the engine and there should be what looks like a bolt between the hose and the engine. This 'bolt' is actually part of the pcv valve.

If you take the clamp off the hose and pull the hose off the fitting (it may take a bit of working to get it off coz the fitting is inside the hose up to about an inch), you can then use a spanner to unscrew the 'bolt' (it isn't actually a bolt, but has sides like one in order to undo it). PS don't remove the hose clamp completely from the hose, just loosen it and move it back further on the hose that way all you have to do to put the clamp back on is slide it back over where the fitting is inside the hose and tighten it up. This bit that you have unscrewed and removed from the engine that is only about 2 inches or so long is the pcv valve. Put the new one in and replace the hose (if the old hose is a bit 'fatter' where it was on the old valve, then if there is enough hose (ie it won't be pulled too tight if it is trimmed) you should trim it a bit so 'fresh' hose is now connected to the fitting), then put the hose on the end of the pcv valve, move the clamp back in place and tighten it (if it is a screw driver tightened clamp then don't do it so tight that it cuts into the hose - just do it tight enough that it isn't going to come off the fitting) and presto you have replaced the pcv valve. Too easy.

It is a very simple job to do and can save you heaps of $ to do it yourself. My suggestion is go to an auto parts supplier and ask for one, giving them all the details of your car etc. Compared to getting it done professionally using genuine parts, you could save yourself up to 80% or so if you can get the right fitting non-genuine part and do the job yourself. IMO it is money down the drain for such a simple job that is just about as easy and yet less messy than replacing an air filter.

Where is the purge valve solenoid on a 97 blazer?

bolted to the intake with 2 bolts on the pass side center has a black plastic hose that goes twards the dist and has an electrical plug

Where is the pcv located on a 1998 firebird?

The PVC valve on a 1998 firebird is on the passenger side. It is on the valve cover about halfway between front and back.

Location of PCV valve 96 ford F-150 5.0 liter?

The PCV Valve is located behind the intake manifold towards the firewall. You will not be able to see it with your eyes so you will have to feel with your hand. It sits in a vacuum hole with a hose sticking out the top,

Why is oil coming out the dipstick?

Usually it is because there is too much crankcase pressure. The pressure can't be relieved through it's normal avenues, so it pushes itself out of the dipstick tube. The PCV valve could be bad. Don't know what motor you have, but some have additional breathers on the valve cover that could be clogged.

A worse case scenario is if you have bad rings and that is causing pressure to escape past them and into the oil pan. From the oil pan it goes out the dipstick.

A clogged catalytic converter is another possibility. The core of a catalytic converter can sometimes break loose and bang around inside the metal housing and sometimes lodge against the output of it, blocking the gas from exiting like if you had shoved a potato up a tailpipe. This causes extreme extra pressure in the cylinders which blows by rings and pressurizes the crankcase. The first time I ran into this the smog hoses would literally blow off the engine (not a Saab) and the engine would have no power to rev above 2k rpm. A shop said the engine was shot. I replaced the engine, and had the same trouble within a half mile. (The shop that did the diagnostic ended up giving me a lot of money about this.)

Easiest backyard mechanic way to test the converter: With car off, crawl under and rap the cat a few times with a rubber mallet. If the core has broken loose you will hear it rattling around. Another way, loosen your exhaust pipe where it attaches to your exhaust manifold, see if the lack of power suddenly disappears. (Caution, real noisy and bad for engine and atmosphere, just try for a block or so.) That's because you have given the exhaust gases a way out even if the cat is clogged.

How do you remove the harmonic balancer on a 1997 Grand Prix?

Remove the right front wheel and inside fender skirt. Remove the serpentine belt. Remove the bolt at the center of the balancer. If a 3.8L engine, use special tool to pull balancer off, otherwise use hands to pull it off, wiggling as necessary.

Would an engine flush work to get the sludge out of an engine in a 1999 dodge durango?

yes it would work depending on how badly the sludge has built up. i would recommened you do the fulsh and then change your oil every 1500 to 2000 miles or 2 months which ever comes first. Keep doing that until the oil is clear after you add oil.

What are the torque specifications for a 1996 Dodge Intrepid main barring cap bolts?

The 1996 Dodge Intrepid main bearing torque specification is 180 pounds. The main bearings should be torqued in 60 pound intervals.

What causes a thrown rod?

Excessive engine RPM....low oil level.....engine component wear/stess/fatigue ....over heating....