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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
Can a bad PCV valve cause white smoke?
yes it can. This is bcos when its bad, it instead allow oil frm d crankcase to be sucked directly in to the intake manifold, thereby generating white smoke.
Are all car engines have a positive crankcase ventilation valve?
So far as I know. It was the very first (about 1971) and still the most basic anti-pollution device. It is also the easiest to replace (takes 30 seconds in most vehicles), and the easiest to "fix". Remove the PCV valve, give it a good shot of spray carburetor cleaner, and shake it. If you hear a rattle when you shake it, it's fine - put it back, you don't need to replace it yet.
A few vehicles, Jeep 4.0L inline 6 for example, use a fixed size orifice instead of a PCV valve.
Where is the pcv valve on a 1996 Saturn SL1 and how do you replace it?
I have an SL2 and the it is part of the valve cover. Small 1/2" hose comes from air box and goes to it on the valve cover. If you purchased your new one it might also help you locating it.
It is located on the valve cover next to the oil cap just pull it out with some moderate force and pull the hose off by twisting it.
Where is the PCV valve in a 1999 Ford Contour and how do you change it?
The 1999 ford contour is equipped with VCT. Variable Camshaft Timing. You"ll see VCT stamped on the valve cover. Part of the VCT's purpose is to eliminate the pcv valve. You do not have one.\
The above answer is WRONG!!! The PCV valve is located near the catalitic converter on the backside of the motor. Changing it can be a tough if you don't know what you're doing. refer to a shop manual for more info.
It is wrong. I've been trying to figure this out for a while with all the different suggestions on the web. I was about to remove the heat shield and started feeling around for the valve. Standing at the front of the car, there is an opening toward the right side of the heat shield. You can feel a hose going behind it. follow the hose and the PCV valve is at the end of it. It's a tight fit but it can be done. Just pull off the hose and then pull out the valve.
My car, a 2008 Audi A4 Turbo was experiencing a cyclical chirping noise, similar to a noisy fan belt ( which it does not have). A defective PCV valve was found , however, the car after being repaired is still making that noise.
Where is the PCV valve located on a 1993 Chevy Lumina?
It is located at the back of the engine. Look from the left side of the vehicle down into the space between the passenger compartment and the engine block. Towards the top of the engine block is a small hose, labeled PCV. It's a pain to remove.
Where's the temp sensor in a 1995 cadillac sls?
about a foot or so to the right of the thermostat housing and down about three inches, on the drivers side engine compartment
How do you replace the PCV valve on a 1980 Buick Century 231 V6?
Not exactly sure but I have a 1979 LeMans with the 231 V6 and I believe the PCV to be a vertical silver-colored valve located at the back of the intake manifold below and behind the carburetor.
Where is the PCV valve on a 1987 300zx non turbo?
The PCV valve is located on the passenger side of the vehicle about center of the air collector system cover. It's right on top and easy to see and replace. Just remove the hose connected to it and screw the valve out of the intake manifold. Install is the reverse. You may want to check the valve first before replacing it. To do this, just remove the ventilation hose attached it and start the engine. If you hear a hissing sound coming from the valve while the engine is running, the valve is good. Also, if you place your finger over the mouth of the valve you should feel a strong vaccum pull. That would also signify a working valve.
Where do you put the crankcase oil in a 1997 400 Polaris Scrambler?
400 2 cycle has a couterbalanc that uses oil, dip stick/fill plug is under the caburator at the base of the cylinder should be a red plug with a screwdriver slot in it .Holds only about an ounce or so good luck
Where is the PVC valve is located for 2002 Pontiac Bonneville?
Regular 3800 engine. First remove the fuel injector sign shield by turning the neck of the oil fill cap 1/4 turn counter clockwise, then lift the front of the cover up and away. Standing in front of the car looking at the engine. It will be on the left end of the intake manifold inside of a bayonet cap. Mounted to the top of the cap is the MAP sensor, a small squarish device with a connector facing the front of the car. Gently pull the map sensor straight up leaving the connector in place. You have to press down and turn the wings on the cap counterclockwise to remove. The PCV valve will be located inside. Supercharged 3800 engine: Remove the injector sight shield by removing the nut located in the center. Then remove the neck of the oil fill cap by grasping the neck and turning 1/4 turn counterclockwise. The PCV valve is under a square cover with 2 screws on the right rear of the supercharger (closest to where the driver sits) as viewed from the front of the car. Note: The PCV valve should never need to be replaced during the normal life of the car, unless a problem has been incountered, or regular oil changes have not been performed.
Where is the PVC Valve on a 1997 Chevrolet S-10 4-cylinder?
the pcv will be located on the top of the valve cover with a 3/8th vaccume line connecting to it
Suzuki 1990 LT250 quadrunner. Why is there fuel in crankcase?
you need to get knew rings the gas is going to the botem end try that You could have leaky needle valve in the carb. The float could have a hole in it and gas leaking into the float causing the float to drop too low in the bowl and allowing too much gas into the system. Mis adjusted float.
Which of these is the maximum distance that the shutoff valve can be from the end of a service hose?
12 inches
Where does a black hose running from the front valve cover connect to?
The black hose hooks up to the air-intake box that is bolted to the radiator brace. It is part of the emissions stuff. I bet you have beacoup oil on engine from this hose, if its not attached. It will also affect the way the engine runs. AJ
The PCV valve is a control device which sends partially burned gases that come from the engine's crankcase to the combustion chamber. The PCV is generally used to regulate the air flow.
Where is the pcv valve located on a Buick Century?
it shuold be on the valve cover Some do. It depends on which engine. One of the more inconspicuous is in the 3.3 litre V6, where it plugs into the intake manifold under the alternator. You pretty much have to remove the alternator to even see it clearly.
Where is the PCV valve on a1999 ford f150 4.2 liter?
on top of the right (passanger) side valve cover.
It is the cast iron shaft in an internal cumbustion engine which is driven by the pistons in a circular fashion. The shaft in turn transmits power to the transmission or gearbox. It also drives the pulleys which power your alternator, water pump, A/C, power steering & brakes or other accessories.
The cranksfat turns up and down movement into rotational movement.
crank shaft is nothing but the part of vehicle which is connected with piton with suitable rod to transfer power produced by engine to fly wheel.
Where is the pcv valve located on the 1999 Chevy Prizm lsi 1.8l l4?
It's on top of the valce train cover. You'll have to take off the black plastic shroud that covers the top of the engine. Its on the transmission side of the engine (driver's side of car) towards the firewall. It's just a little rubber hose that goes from the valve train cover to the intake almost directly below it.
Where is the PVC valve on a 95 Pontiac Bonneville SE located?
on a 3.8 remove the cover over the top of the engine and look on the very end of the intake closest to the altenator.there should be a connector with three wires. unhook the connector and twist the housing, remove the housing and there it is. keep in mind theses intakes are notorious for leaking coolant into the cylinders causing the engine to run rough..
Where is the PCV valve on a 2.0L 1988 Ranger?
Coming out of intake manifold and going into rocker cover
Where is the PCV valve on a Saturn 1.9 liter engine?
its on the rear of vavle cover,top and in the middle of it
What could cause an engine to completely lock up can try and start and nothing happens?
Low or no oil and you seized the internal bearings Overheated and burned out the starter
