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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

Where is the PCV valve on a 2003 Grand Marquis?

The PVC valve will be located in one of the valve covers. The valve covers are on top of the engine on either side. And it will have a hose attached to it which will lead over to the air intake system.

Where is the PCV valve on a 2000 sienna?

Its at the end of the LHS engine cover. You normally cannot see it in front of the engine. To access it, you need to identify the hose and then follow the hose by hand. Your hand should feel a hose clip which is connected to the PCV which in turn monted directly on the engine cover.

Where is the PCV valve on a 1997 Mercury Mountaineer?

The 1997 Mercury PCV valve is located on the outside of the air cleaner housing. The PCV valve can be found on the back of the housing.

Location of PCV valve in 2005 beetle?

The PVC valve for a 2005 beetle is in a tee hose. The hose is on the front right under the intake manifold.

Where is the PCV valve located on a 1994 Pontiac Grand Am?

To answer this, first i need to know what size engine you have. Is it a 2.3L 4 cyl or a 3.3L 6 cyl.

Where is the PVC valve located on a 1995 Ford Ranger?

on an SOCH 4cyl its mounted in the oil separator on the left side of the engine on DOHC 4 cyl you have to remove the drivers side inner fender well to get to it

Where is a PCV valve located on 04 Isuzu axiom engine?

Isuzu pcv number 8-97289-271-0(MSRP $15.95) is located on the left (driver) vavle cover. On the left VC cover it is closest to the rear of the cover towards the firewall. It will have a hose connection on it leading to the throttle body.

Where is the PCV valve located on a 1993 Nissan hardbody truck?

It took me a while to find mine. It's been a while since I changed mine, and I tried to find the exact location again, but I could not see it. It is on the passenger side of the motor, close to where the water line to the heater comes off by the thermostat, and if I rememeber correctly, it's under the intake manifold. If I remember correctly, it's not directly on the motor, but off of a pipe, but I'm not sure. Sorry I couldn't help you more.

Where exactly is the PCV valve on a 2.2 liter 1995 Pontiac Sunfire and is it difficult to replace?

When facing the engine, you'll notice two small fittings on either end of the valve cover. The PCV valve is the one on your left. Unscrew the plasic cap and replace the valve.

Is there a PCV valve on a 2000 Dodge Caravan?

yes theres actually two different kinds to my knowledge. its really easy to see. its just straight, no elbow like most. the front valve cover should have a hose comin out of it. follow the hose a short way up. the other end LOOks to be just a fitting but its not. that's the pcv valve. it should either slip in or screw out. that's the difference between the two. one slips in. one screws in.

Where is the PCV valve on a 2000 Ford Focus SE?

WE need to knw which engine you have: 2.0 Zetec, 2.0 SPI, 2.0 Zetec VCT?

How do you reset the check engine light on a 1997 Mazda 626?

"Disconnect the negative terminal and push brake pedal for 30 seconds" worked great! One note: You must use actual key to unlock doors after battery disconnect to reset car alarm so car will start.

I recomend getting the car checked out by a professional. And you never unhook the positive battery cable first, you always do the negative firstl. And sometimes when you do this it erases the computers memory. so take to a professional.

If you HAVE TO, disconnect the negative battery terminal. Put your foot on the brake pedal for 30+ seconds.

I tried the previous answer of removing the negative battery cable, and holding the brake pedal for 30 seconds and it WORKED!!! Just got back from the emissions test, and passed. THANKS!!!

I got check engine light problem just happened few hours ago, my car is 1999 Mazda 626 ES, and I tried the previous answer of above- revmoving the negative cable as well. It REALLY WORKS. It saved my time & money ^^

[Apr 27, 2008]Just applied this method "disconnect the negative battery terminal. Put your foot on the brake pedal for 30+ seconds.", it just worked perfectly. Save me lots of worries and trouble to send the car to mechanics. Thanks so much to the one who posted this method.

i just used removed the negative battery and stepped on the brake for 30 seconds on my 2000 626 es and it worked! saved $80

Just did wt u said and it really works...thanks a million

Same thing works on a 2006 MX 5 Miata....light came on due to loose gas cap and I sure did not want to pay the dealer to reset the dang thing.....Advisable to check out why you have the light at AutoZone or most other parts houses before you reset the light.

a car scanner can help you.

Is fuel in engine oil bad?

For engines, it's great. For people, it's toxic. For the environment, it's horrible.

PCV on a 2003 ford exp 5.4?

The 5.4l engine has 2 PVC valves one on each valve cover in the middle of the motor. They are black and are 90 degree angle plastic pipe

Where is the PCV valve on a 1996 Chevy Camaro 3800 v6?

On a 1996 Chevy Camaro, the PCV valve is located on the right side of the valve cover. There is a hose that runs from the PCV valve and connects to the back of the intake manifold.

Where is the PCV valve located on a 2001 Mazda trbute?

on the v6 engine. look at the throttle body, below that you see the fuel line, and blow that you see where the fat radiator hose goes into the motor, its behind that! after you pull the rubber tube out, I used a deep socket to twist it out. test fit the socket with your replacement valve. not exactly the right shape, but works.

Where is the PCV valve located on a 2000 5.3 vortec?

On top of the air filter is a diagram that shows you where the PCV valve is located.

Where is the PCV valve located on a 2008 3.8L Chrysler town and country?

It is on the top of the rear valve cover.

It is on the top of the rear valve cover.

Where is the PCV valve on a 2000 Nissan Altima?

I was looking for an answer to this question myself, and found it answered at: talkaboutautos.com

Where is the IATintake air temperature sensor on 1999 vw jetta GL?

an iat sensor is almost always located inline with the intake tube. i work on so many vw's at heart volkwagen i cant remember exactly where it is. if it is a turbo it will be most likely mounted on the inercooler. just check for a 2 wire sensor online with the intake tube.

Where is the pcv valve on a 97 Mercury Villager van?

It's located on the back side of the intake manifold. It's screwed into the manifold.

Where is the PCV valve located on a 1992 Pontiac LeMans 4 cylinder?

It should be located right on top of the valve cover, if not then it would be inline with about a 3/8" hose leading over to the intake manifold. There are not that many vacuum lines there, so it shouldn't be that hard to find. The PCV system utilizes a fixed orifice in the intake manifold. There is not a replaceable valve according to Alldata.