#Emissions Testing Il

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Key Components That Comprise Your Car's Emission Control System

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The combustion process that takes place in your car's engine produces a number of emissions. These include carbon monoxide (which can be deadly), hydrocarbons (which pollute the environment), and oxides of nitrogen. Because of the pollution and health risk these compounds pose, the government passed legislation in 1977 limiting their output. The result was that automakers were forced to design emission control systems (ECS) for their vehicles.

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Within a few years, car manufacturers had begun to create technology that allowed engines to adjust themselves, according to their emissions output. This included placing an oxygen sensor in the path of the exhaust leaving the engine. The sensor monitored the level of fuel, and delivered that information to the powertrain control module (PCM). The PCM would then adjust the amount of fuel sent to the cylinders.

Today's vehicles are equipped with systems that are more robust. The PCM - essentially, a computer - monitors data from multiple sensors, and uses it to identify problems, and if possible, correct them. Below, we'll take a closer look at the main components that comprise your car's emission control system.

Catalytic Converter

This component marks the biggest breakthrough in the design of emissions systems. The exhaust from your engine flows through the pipes and into the catalytic converter. The part contains a filter media that has been coated with a special material. This material interacts with the emissions contained in the exhaust. Carbon monoxide is turned into water. Hydrocarbons are turned into carbon dioxide. As a result, the output that exits your tailpipe contains very few emissions.

The catalytic converter is designed to last for several years, usually up to 100,000 miles. But it can fail sooner if it is forced to work harder than it should. If the exhaust coming from your engine is especially "dirty," the converter will need to work harder in order to clean it. This can place excess stress on the component until it eventually dies.

PCV And EGR Valves

Your vehicle's ECS is designed to funnel some of the gases coming out of your cylinders back into the engine. There, they are burned along with the air-fuel mixture. The positive crankshaft ventilation (PCV) valve controls this process. When your car is idling, the valve allows a small amount of gases into the intake system. When you're traveling at normal speeds, it allows more in.

The exhaust gas recirculation (EGR) valve performs a different, though related, function. Its job is to monitor the emissions going into the intake system, and adjusting the level to manage production of oxides of nitrogen. The higher the temperature inside the engine, the more oxides of nitrogen that are produced. However, the more exhaust the EGR valve allows in, the lower the combustion temperature becomes. The exhaust essentially has a dilutive effect on the air-fuel mixture.

Canister For Gasoline Vapors

Fuel evaporates even when it is sitting idle in the gas tank. The problem is, this evaporation allows vapors to escape into the atmosphere. In the 1970s, the government required automakers to install a control mechanism in the gas tank to catch these vapors before they could escape. This mechanism is a charcoal canister. Vapors are confined within, and released when you start your car. At that point, they are pulled into the engine, and burned with the air-fuel mixture.

When Trouble Codes Are Triggered

When problems develop in the emission control system, your powertrain control module will set a fault code. This code will be stored in the computer's memory. The check engine light on your dashboard will alert you regarding the issue. Even though you can continue driving with a faulty ECS, you should have problems addressed as soon as the light goes on. Otherwise, your vehicle will allow excess emissions into the environment, and potentially place you and your passengers at risk.

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2003-2007 Ford Powerstroke EGR System - Where it is, Why it is a Problem, and What to Do About It

Emissions Testing - 2003-2007 Ford Powerstroke EGR System - Where it is, Why it is a Problem, and What to Do About It. The content is good quality and helpful content, Which is new is that you simply never knew before that I do know is that I even have discovered. Prior to the distinctive. It is now near to enter destination 2003-2007 Ford Powerstroke EGR System - Where it is, Why it is a Problem, and What to Do About It.

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In 2003 Ford introduced the 6.0 Powerstroke to the world. This is the same engine that International calls the VT365. This engine has received a really bad reputation in the diesel world due to reliability issues. We will tackle one of the problem areas here today, the EGR system.

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How is 2003-2007 Ford Powerstroke EGR System - Where it is, Why it is a Problem, and What to Do About It

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Before I go any farther, please understand that the EGR system is an emissions device. It is against Federal law to tamper, remove, or render an emissions system inoperable. Please understand that all the information in this article was collected from off-road only trucks and I do not endorse the removal or tampering with of any emissions system of a vehicle that is used on public roads. All the information obtained for this article is from testing vehicles on our Superflow chassis dyno in the shop. It is up to you and your mechanic to decide what steps you want to take in modifying your truck. Use this information at your own risk.;)

1. What is the EGR system and why do I need it?

One of the most frequently asked questions we receive is what is the EGR system and why do I need it? We don't have to go into long technical descriptions here. EGR stands for Exhaust Gas Recirculation. To meet certain emissions standards, it is necessary to reintroduce exhaust gases into the intake air in order to bring certain elements in the exhaust within levels set for that year of truck. Of course you wouldn't want to dump hot exhaust gas directly into the intake manifold, so that is why there is an EGR cooler. The cooler has engine coolant running through it and looks very much like a regular radiator or heater core. The exhaust gas passes through this small radiator and lowers the exhaust gas to a temperature that it is able to be introduced into the intake system at. On the 6.0 Powerstroke engine, it is an extremely simple system consisting only of a cooler and a valve. When the engine's computer decides the EGR valve should open under certain conditions, the exhaust gas is let out of the cooler and into the intake manifold. And here we have the first hint of a problem; the exhaust gas is always in the EGR cooler.

2. What goes wrong with the EGR system and how can it hurt my engine?

The big problem here is heat. It is possible for a completely stock engine to produce exhaust gas temperatures well in excess of 1000 degrees. So imagine taking 1000-1500 degree air and constantly running it through your heater core day after day. How long do you think it would last? Next, put that heater core in an enclosed box that has to endure not only the high temperatures, but also 10-50 psi of exhaust backpressure that is built before the turbo it and the exhaust manifold. Even though the cooler is made out of materials that are meant for higher temperatures, it is not a matter of if, but when your cooler will fail. Best case scenario is that the cooler just leaks a little coolant into the exhaust system and it passes out the exhaust and you just notice some coolant loss. Worst case scenario, exhaust pressure is able to enter a break in the cooler and enter the coolant system which only runs at 12 or so psi max. The high pressure will ruin head gaskets and oil coolers. They simply weren't designed to withstand that much pressure in the coolant system. Also, the coolant system cannot keep the truck cool with that much pressure in the system. This is why you will hear about or may have experienced coolant puking out of the filler cap on the degas bottle after pulling a load up a long hill. The cap is made to bleed off pressure above 12-14 psi. The increased coolant temp and extra pressure being pushed in from the exhaust will push coolant right out the cap. We have a truck in the shop right now with a blown EGR cooler and head gasket. The pressure in the coolant system had gotten so high that it blew one of the hoses right off the coolant bottle. This truck was a bone stock work truck. This blown cooler problem only gets worse when you put a programmer on the truck that raises exhaust gas temperatures several hundred degrees. If you put your programmer on the highest setting, hook to a heavy trailer, and then go tugging up a long grade, I suggest you put your mechanic on speed dial. You will need his services soon.

The other problem with the system is that the EGR valve constantly gets coked up with exhaust soot. The dirty exhaust gas passing by it deposits soot on the valve surfaces. Sooner or later the valve will get enough soot on it that it can't close and operate normally. Exhaust gas is constantly pouring into the intake manifold now. This condition causes severe drivability issues, poor fuel economy, and low power. If you have owned a 6.0 Powerstroke for very long, you have no doubt replaced, cleaned, or had your EGR valve checked because of this problem.

3. What can we do to fix this problem?

There are a couple of fixes to this problem. The first and most obvious is to simply remove the cooler. Unfortunately, that would be against the law. We do sell an EGR delete kit to do just that if you are going to use your truck for off road only. This kit completely removes the cooler from the truck. There is a line that bypasses the coolant from where it comes out of the oil cooler directly to where it once came out of the EGR cooler into the intake manifold. There is also a pipe that replaces the factory up-pipe between the exhaust manifold and the turbo. Some years have a scoop in the factory pipe to help direct exhaust gas into the cooler. Since the cooler isn't going to be there anymore, we need to replace that pipe with one that doesn't have the flange for the cooler nor the scoop. There is some debate on how much difference in performance replacing the up-pipe actually makes, but I personally would just like the stupid scoop out of there if it was my truck. Also, we are removing one more place to have an exhaust leak by not leaving the factory cooler flange with some sort of block off in it.

The other fix is to replace the cooler with a "performance" one that is not suppose to rupture. I have never personally installed one of these myself. I really don't believe in them. Even if the cooler will never pop with a better unit in there, you would still be getting exhaust gas into the intake system. If you have ever torn down a 6.0 Powerstroke, you would be amazed at the amount of soot that collects on the intake passages and intake valves. Letting dirty exhaust gas into the intake manifold is just a bad idea the whole way around. If you are on a tight budget, still under warranty, or worried about not having the cooler in there for emissions, you could just block the stock cooler off. The quickest and best low budget fix is to put a freeze plug in either end of the cooler and weld it solid. This way no exhaust gas can enter the cooler nor can any coolant exit if the cooler ever ruptured. You still have the dilemma of the scoop in the exhaust pipe, but this low buck fix will work ok if you can't afford the delete kit to do it right. With this being said, I would still install the bypass kit on my own personal truck just to be rid of the whole mess for good.

4. Will deleting the cooler affect the way my truck runs? Will I get a check engine light?

The answer to the first question is yes. You should see an increase in fuel mileage, a little quicker spool up of the turbo, and usually a little lower EGT's. There are no negative performance effects from removing the cooler no matter what your friendly Ford technician tells you. It seems like a waste of your money to install a high flow air filter or cold air intake system if you have hot, dirty exhaust gas pouring into the system just past it. As for the check engine light, you shouldn't get one at all as long as you leave the EGR valve in the manifold and plugged in. There is absolutely no reason to remove it from the system once you have removed the cooler. The computer can open and close it as many times as it wants. There is no feedback loop that lets the computer know whether or not the exhaust gas made it into the intake manifold when the valve is open. The computer will stay happy just opening and closing the valve at will and no check engine light will be lit. There are some delete kits out there that have a block off plate for the port where the EGR valve goes. I don't recommend installing them. For starters, there is no reason to block it off if you have the cooler deleted since no exhaust can get through the valve. Second, you will have to leave the valve plugged in and laying on the engine to stave off check engine lights which is kind of amateurish at best.

5. Is there anything I can do to prolong my EGR cooler life if I want to leave it in?

If you don't want to remove your cooler for fear of black helicopters and jail time for tampering with Federal emissions devices, there are a couple of things you can do. First off, the lower you can keep your exhaust gas temperatures the better. Installing a high flow exhaust will help lower your EGTS considerably. A bigger more efficient intercooler like the Banks Technicooler or the Spearco upgrade will also help. Installing a turbo that moves more air like the Garrett Stage 1 will also help lower EGTS. And lastly, installing a pyrometer to keep on eye on exhaust gas temps will enable you to back out of the throttle when they get too high. Also making sure you run oil that has the right certification for your engine will help keep soot down a little.

In conclusion, I firmly believe all the horror stories of multiple blown head gaskets can be blamed on two things: First is extremely high timing in some of the first performance programmers that were introduced. They simply didn't know right away that the 6.0 would puke the gaskets if more than 12 degrees of timing was used for the really hot programs. The 7.3's would stand up to that much timing and more no problem. Secondly, I believe blown EGR coolers contributed to then and still are causing blown head gaskets today. I understand the need for cleaner emissions, but at what cost?

Thanks for reading,

John Anderson

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EVAP System Operation

Emissions Testing Il - EVAP System Operation. Sponsored links

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How is EVAP System Operation

EVAP System Operation Video Clips. Duration : 6.32 Mins.

We had a good read. For the benefit of yourself. Be sure to read to the end. I want you to get good knowledge from Emissions Testing Il . Explain the operation of the EVAP system. The EVAP system is in charge of recovering the excess fuel vapors and re-introducing them into the engine. It isn't just an emission system. If it malfunctions is also has a huge effect on engine performance and certain components operation will be cancelled by the ECM if the EVAP system fails. Learn how they operate here and how to test. The OBD-II scanner or Scan-1 is used to diagnose these systems and evaluate the process. See how it works.

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Ferrari SA Aperta 599 Roadster and Ferrari California with HELE system in Paris

Emissions Testing Il - Ferrari SA Aperta 599 Roadster and Ferrari California with HELE system in Paris.

Do you know about - Ferrari SA Aperta 599 Roadster and Ferrari California with HELE system in Paris

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How is Ferrari SA Aperta 599 Roadster and Ferrari California with HELE system in Paris

Ferrari SA Aperta 599 Roadster and Ferrari California with HELE system in Paris Tube. Duration : 4.17 Mins.

We had a good read. For the benefit of yourself. Be sure to read to the end. I want you to get good knowledge from Emissions Testing Il . Ferrari's highly anticipated SA Aperta (aka the 599 Roadster) has made its public debut at the Paris Motor Show. Built to celebrate Pininfarina's 80th anniversary, the Aperta is "an authentic roadster" that features a lowered windscreen, a reduced ride height, and two aerodynamic buttresses which are integrated into the roll bar hoops. Under the hood, a 6.0-liter V12 engine produces 670 PS (493 kW / 661 hp) and 620 Nm (457 lb-ft) of torque. It enables the 1705 kg (3759 lb) roadster to accelerate from 0-100 km/h (0-62 mph) in 3.6 seconds, before hitting a top speed of 325 km/h (202 mph). Production is limited to 80 units and, rumor has it, they have all been spoken for. Ferrari has also premièred the California model at the Paris motor show fitted with its new HELE (High Emotion Low Emissions) system. The comprehensive technology is designed to lessen the CO2 emissions of the car while at the same time boosting efficiency and performance. The technology features a complex system of intelligent electronics, including a stop/start system with a 230 milliseconds re-start time that does not impact the drive experience at all and is also made ideal for F1-inspired left-foot braking. The HELE system also electronically controls components such as the engine fan, fuel pump, air-conditioning compressor and adaptively controls the gear-shift pattern to optimize the car's workings as a whole and maximize the efficient use of energy. The HELE system on the Ferrari California reduces ...

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"LEAF to Home" Nissan LEAF Power Supply System

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How is "LEAF to Home" Nissan LEAF Power Supply System

"LEAF to Home" Nissan LEAF Power Supply System Tube. Duration : 5.45 Mins.

We had a good read. For the benefit of yourself. Be sure to read to the end. I want you to get good knowledge from Emissions Testing Il . [ Clidk on "CC" button on the bottom for English subtitles ] 100%電気自動車「日産リーフ」のバッテリから住宅に電力を供給する技術を開発。今年度内の商品化を目指します。 Nissan has developed a system which enables electricity to be supplied from the lithium-ion batteries installed in Nissan LEAF to ordinary households, as part of its comprehensive efforts toward the realization of a zero-emission society.

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2003-2007 Ford Powerstroke EGR System - Where it is, Why it is a Problem, and What to Do About It

Emissions - 2003-2007 Ford Powerstroke EGR System - Where it is, Why it is a Problem, and What to Do About It

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About Emissions

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1. What is the EGR system and why do I need it?

2. What goes wrong with the EGR system and how can it hurt my engine?

3. What can we do to fix this problem?

4. Will deleting the cooler affect the way my truck runs? Will I get a check engine light?

5. Is there anything I can do to prolong my EGR cooler life if I want to leave it in?

Thanks for reading,

John Anderson

I hope you will get new knowledge about Emissions. Where you'll be able to offer use within your life. And most importantly, your reaction is Emissions. Read more.. 2003-2007 Ford Powerstroke EGR System - Where it is, Why it is a Problem, and What to Do About It.

2003-2007 Ford Powerstroke EGR System - Where it is, Why it is a Problem, and What to Do About It (with Health & Product)
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