0
EGR Systems
When the temperature in the combustion chamber becomes extremely hot, nitrous oxides are formed, which then turn into smog. In order to reduce such occurrence, the exhaust gas recirculation system minimizes the temperature in the combustion chamber.
500 Questions
Where is egr valve located on 2004 grand am?
Asked by Wiki User
i want to know if a 2004 grand am , 2.2 engine has a egr valve
Where can you get an EGR Modulator Filter?
Asked by Wiki User
I don't know if any dealerships sell the filter alone. More likley, you'll have to buy the entire EGR modulator. You might be able to get a modulator filter in decent shape at a junk yard. Your best course of action, if your current filter is redeemable, is to clean it using compressed air. If your filter is beyond redemption, then you might try constructing a filter using materials similar to the ones used in your original filter.
What would cause black smoke to come from the tailpipe of a 97 Chevy Cavalier?
Asked by Wiki User
Black smoke usually means the engine is running too rich. The fuel/air mixture is incorrect. Blue smoke is oil burning.
Will a bad egr valve cause your car to idle rough or die?
Asked by Wiki User
It is a common suspect in contributing to rough idle.
See "Related Questions" below for more about the EGR valve, from testing to replacing.
What is a PCV valve?
Asked by Wiki User
PCV stands for positive crankcase ventilation.
They are usually right in plain sight on top of the valve cover. If you had one you probably could have changed it yourself in about 30 seconds or less.
A PCV valve helps keep a constant pressure within the engine block by releasing oil fumes when they get to a certain pressure and sending them into the fuel system to be reburned with the gas.
While they can be inexpensive, they can be very hard to locate and remove on several makes of cars and trucks. Some are internal and cannot be replaced, meaning they are located inside the valve cover.
The PCVs that can be replaced should be replaced every 15 to 60 thousand miles depending on the make and engine you have.
Shop around for a better price than you paid, $12.00 is a little steep.
It stands for positive crankcase ventilation. And what they told u was right about replacing it. All it does is prevent condensation build up and burn fuel fimes that get by the rings. The condensation will build up and create sludge and that is a bad thing because it will block oil galleries and return holes and ur engine will run oil dry and it will be fried.
pos.crankcase vent keeps pressures even in your eng.returns fumes to the intake threw the air filter houseing.easy to check shake it if it rattles it should be good put it back
The answers are correct as to what it does, and how it is to be checked, though usually the "prescribed" way to check it is not just shaking, but trying to suck, or blow, air in both directions (it should be one-way).
However I have never heard of routinely replacing this item, and have known some cheapskates actually "revitalizing" them by spraying them with engine cleaner.
As to price, $9 is too cheap for a professional oil (and filter?) change, so they nailed you for the valve, by its cost, and probably by its need.
There isn't any free lunch.
buy one and keep it in your glove box. change it every other year. it is an emmission control device. it takes blow by and directs back to be used again. it is cheap insurance and prevents sludge. change it every time you get a tune up also change your airfilter out at the same time. If your airfilter is oil soaked, it probably due to a worn pcv valve. change the valve first then change the airfilter.
The PCV Valve, or Positive Crankcase Ventilation valve is an emission control device that routes unburned crankcase blowby gases back into the intake manifold where they can be reburned. The PCV system is one of the oldest emission control devices, and also one of the most beneficial. Besides totally eliminating crankcase emissions as a source of air pollution, the constant recirculation of air through the crankcase helps remove moisture which otherwise would cause sludge to form. Thus the PCV valve extends the life of the oil and engine. The PCV valve requires little maintenance. The valve and filter should be replaced somewhere around 30,000 to 50,000 miles(see the vehicle owners manual for service intervals).
PCV is an acronym for Positive Crankcase Ventilation. This valve is needed to relieve the pressure built up in the crankcase that is created by the heating of the air inside the engine. If this valve were not present and the pressure went unchecked, it would blow out the seals and gaskets inside your engine.
PCV stands for Positive Crankcase Ventilation. This replaceable valve replaced the vent pipe on the engine, this got rid of the fumes and or pressure that builds up in the crankcase, nowadays the crankcase does not vent into the environment. with the PCV valve these fumes are returned to the intake manifold and are mixed in with the fuel intake stroke to be burned and so create a cleaner exhaust.
Pcv valveI don't think a car has been built in the last 40 years that doesn't have a PCV valve. My 1965 Galaxie had one, but my 64 Ford pickup didn't. PCV means "Positive Crankcase Ventilation", in other words actively sucking junk out of the crankcase rather than just letting it be vented to the air.The PCV valve allows unburned stuff that blows by the piston to be collected and re-burned rather than just vented to the air, without causing your engine to stall out at idle. This results in a serious reduction in air pollution at virtually no cost, which is why it was the first emissions control device employed.
Look on top of the valve cover. There should be a knob sticking out with a small diameter rubber hose attached to it. It will be inserted in a rubber grommet. You can just pull it out of the valve cover. If it's clogged it will be unnecessarily blowing junk into the air; if it's leaking, it will seriously foul up operation of your engine, especially at idle. They cost about two bucks and you can change it with your bare hands. Replace often. The book says 24000 miles/24 months. I always write the replacement date on them with a Sharpie so I can remember when I replaced it last.
How do you do an ERG valve clean out on a 2001 Ford F-150?
Asked by Wiki User
4.2L, 4.6L, 5.4L and 6.8L Engines 1. Disconnect the negative battery cable. 2. Remove the vacuum hose from the EGR valve. 3. On the 4.6L engine, remove the nut and brake booster bracket. 4. On the 5.4L engine, remove the DPFE sensor retaining nuts and place the sensor to the side to allow access to the EGR tube. 5. Disconnect the EGR valve-to-exhaust manifold tube from the EGR valve. 6. Remove the EGR valve mounting bolts, then separate the valve from the intake manifold. 7. Remove and discard the old EGR valve gasket, and clean the gasket mating surfaces on the valve and the intake manifold. To Install: 8. Install the EGR valve, along with a new gasket, on the manifold, then install and tighten the mounting bolts. 9. Connect the EGR valve-to-exhaust manifold tube to the valve, then tighten the tube nut to 25-35 lbs. (34-47 Nm). 10. Connect the vacuum hose to the EGR valve. 11. On the 5.7L engine, install the DPFE sensor. 12. On the 4.6L engine install the brake booster bracket and the retaining nut. 13. Connect the negative battery cable.
How do you clean a EGR valve on a vauxhall frontera?
Asked by Wiki User
Use carb cleaner and a wire brush.
Where is the 02 sensor located on a 1996 Chevy silverado?
Asked by Wiki User
my 96 with 5.7 ltr has 4 of them, 1 located by the exaughst manifold on each side, and also 1 located on each side by the converter
Where is the EGR valve located on a 2004 Dodge Caravan 3.3 that is electrical and not vacuum operated?
Asked by Wiki User
The egr is located on the front cylinder head where the belts are located, it has a five wire connector an a tube that goes to the intake pleneum.
Early 2004 egr's were vacuum and later ones were all electric.
How do you clean egr ports on a 2001 v8 4.6l expedition?
Asked by Wiki User
Sorry, I'm looking for the same answer. I just brought my 2001 Ford Expedition 4.6L V8 to the shop because the Check Engine Soon Lights is on. I paid $73 dollars. They told me my EGR Valve need replacing and the EGR ports need cleaning. Estimated price $600.00. So if anyone can tell us this I would and my wallet would be very greatful..
Where is the EGR valve located on a 1991 Geo Prism 1.6?
Asked by Wiki User
Underneath the intake manifold, it bolts on at cylinder # 4. or first from the drivers side. It is found right under the EGR Modulator. Disc like device with two vacuum line on the pasenger side and one vacuum line on the driver side. Best way to get to it is to remove the intake manifold.
Where are the idle air control valve and the EGR valve on a 1993 Chevy 1500?
Asked by Wiki User
It is on the left side of the TBI Throttle body, and it screews into the side of it.
with a electric connector plug on it. ( Idle speed control)
The EGR valve is on the lrft side of the intake manifold, close to the valve cover.
Will car run with disconnected egr valve?
Asked by Wiki User
If you mean disconnecting the electrical leads, Absolutely. If vacuum actuated, you'll have to plug off the active (sucking) end of the hose. If your egr is stuck it will probably run better. You will get a check engine light and won't pass emissions though...
P0401 code on 96 Tacoma?
Asked by Wiki User
Trouble code P0401 means: Exhaust Gas Recirculation Flow Insufficient Detected
Where is the exhaust gas recirculation valve EGR located on a 97 s10 Chevy blazer 43L AC v6?
Asked by Wiki User
It should be on the front of the intake manifold directly above and behind the water pump.
Where is the thermostat and EGR valve on a 1991 Silverado?
Asked by Wiki User
The thermstat is in the housing at the motor end of the upper rad hose. Two bolts hold it on. The EGR is on top of the intake manifold near the throttle body. It has a vacuum hose and two bolts. If I remember correctly the bolt are inverted torks. Which require a special tool to remove. Use a pair of locking plyers to remove, then replace bolts with standard ones.
Where is a 1995 Firebirds egr located?
Asked by Wiki User
If its a 3.4 L,Under hood, center, front engine area, mounted on front passenger side of engine On a 3.8- Under hood, center, upper engine area, mounted on top front driver side of engine On 5.7- Under hood, center, lower engine area, mounted on driver side of engine at rear of exhaust manifold
Where is the egr valve located on the 2005 Chrysler 300c?
Asked by Wiki User
Passenger side, front of engine, just above the alternator.
What causes black sooty exhaust?
Asked by Wiki User
What can cause black sooty exhaust is bad valve guides. When the guides are bad oil leaks into the cylinder when the car isn't running. When the car starts it produces black exhaust.
Why is there a hesitation as you apply the accelerator?
Asked by Wiki User
A defective EGR Valve will cause hesitation on acceleration.
Where is the egr valve on a 1997 ford ranger?
Asked by Wiki User
Start at the exhaust. Look for a pipe that goes to the intake. There will be a valve with a vaccuum tube, this is the EGR valve The EGR valve returns exhaust to reduce N.O. At idle it is closed, at 55 rpm it opens. You can test the part to see if it holds a vaccuum, otherwise that's about all it does. Most of the newer cars will also have a solenoid switch. Now this switch must be tested for ohms and if open will cause problems at smog test. A bad solenoid will cause a "fail"
