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= EGR Theory. EGR serves one purpose and one purpose only. That purpose is to reduce Oxides of Nitrogen (NOx). Undernormal combustion, Nitrogen(N2)Oxygen (O2) in the air and Hydrocarbons (HC) in the fuel combind into water(H2O) Carbon dioxide (CO2) and the Nitrogen remains unchanged. Under very hot combustion temperatures, the Nitrogen reacts with the other two byproducts and forms Nitrogen oxide (NO). After being released into the atmosphere, it picks up another Oxygen and becomes Nitrogen dioxide (NO2). In the presence of sunlight,
it combines with other compounds like Hydrocarbons and forms Smog. Since exhaust gas is inert (very stable) it doesn't burn again. So by being introduced into
the combustion chamber, it will lower combustion chamber temps enough so that
the Nitrogen doesn't react with the other compounds and is passed unchanged out
the tailpipe thus not contributing to smog. Now, since exhaust gas doesn't burn, it
doesn't exactly help with combustion. At higher RPM's, this really isn't noticable,
but at idle, the reintroduction of exhaust gas will cause a very rough idle and can
cause stalling if to much is introduced into the combustion chamber = = EGR Valve = 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.
What else can I help you with?
Where is the EGR valve located on a 2000 Lincoln navigator?
It is on the back of the engine under the wiper area
Where is the egr valve on a 2002 Lincoln Navigator?
right in back of the intake by the fire wall. Hard to see and replace. Not recommended to DIY ...
Where is the location of map sensor on 2004 Lincoln ls?
it is in with the EGR valve system
Where is the egr valve on a 2001 Lincoln Navigator?
The EGR (Exhaust Gas Recirculation) valve on a 2001 Lincoln Navigator is typically located on the passenger side of the engine, near the intake manifold. It is mounted on the engine block and connected to the EGR tube, which carries exhaust gases back into the intake system. To access it, you may need to remove some components for better visibility. Always consult the vehicle's service manual for precise location and removal instructions.
Where is the EGR Vlve on a 2003 Lincoln Navigator?
The EGR (Exhaust Gas Recirculation) valve on a 2003 Lincoln Navigator is typically located on the engine's intake manifold, near the rear of the engine. It is connected to the exhaust system and the intake manifold by a series of pipes. To access it, you may need to remove some components for better visibility. Always refer to a repair manual for specific instructions and diagrams tailored to your vehicle.
How do you add horsepower to a V6 2004 Lincoln LS?
get a bigger air intake K&N unpluge your EGR vavle
Where is the EGR valve on a 2004 dodge ram diesel?
The 2004 Cummins does not have EGR.
Where is the egr valve on a 2004 Pontiac Grand Am?
does a 2004 grand am ,2.2 l have a egr valve
Where is the egr located on a 2006 navigator?
On a 2006 Lincoln Navigator, the Exhaust Gas Recirculation (EGR) valve is typically located on the engine's intake manifold. It may be positioned near the rear of the engine, close to the throttle body, making it somewhat challenging to access. Look for a cylindrical component with an electrical connector and vacuum lines attached. For precise location and replacement, consulting a service manual or repair guide can be helpful.
Where is egr valve located on 2004 grand am?
i want to know if a 2004 grand am , 2.2 engine has a egr valve
Where is the location of the EGR Sensor A in a 2004 Dodge Caravan?
it is part of the egr valve
Where is the egr valve located on a 2004 dodge durango hemi?
The 2004 Dodge Durango EGR valve can be found on the firewall in the engine compartment. The EGR valve will be on the passenger side of the firewall.
