answersLogoWhite

0

EGR Valve

The Bottom Line

The EGR valve helps your car more efficiently and completely burn fuel by recirculating a portion of your exhaust and running it through the combustion process again. This results in a cooler, more complete burn of the fuel which decreases you car's noxious emissions by prohibiting the formation of some harmful gases.

Pros

· The EGR valve is vital to your car's emission controls.

Cons

· When the EGR valve goes bad, it must be replaced.

Description

· EGR Valve = Exhaust Gas Recirculation Valve.

· The EGR valve controls formation of noxious emissions.

· Rough idle and poor acceleration can be caused by a faulty EGR valve.

Guide Review - EGR Valve

The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold. This exhaust mixes with the intake air and actually cools the combustion process. Cooler is always better inside your engine. The exhaust your EGR valve recirculates also prevents the formation of Nitrogen related gases. These are referred to as NOX emissions, and are a common cause for failing emissions testing. Unfortunately, your EGR valve can get stuck, causing NOX gases to build up. You'll know if your EGR valve is stuck or malfunctioning because your car will experience symptoms like rough idle and bucking on accelertaion.

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.

User Avatar

Wiki User

16y ago

What else can I help you with?

Related Questions

Where is the air control valve located on 2000 Lincoln navigator?

Show me where that air valve control valve is located on a 2000 navigator


Where is the EGR valve located on a 2000 Lincoln navigator?

It is on the back of the engine under the wiper area


What kind of gas should you use on 2000 navigator?

unleaded - 91 octane ( according to the 2000 Lincoln Navigator owners manual for the 5.4 L - 4 valve - V8 engine )


How to diarm the factory alarm on a 2000 Lincoln navigator?

how to disarm the factory alarm on a 2000 lincoln navigator


How much does a Lincoln Navigator weight?

my 2000 Lincoln navigator weighs 6700 lbs.


What would cause a horn like sound on 2000 Lincoln navigator?

on my 2000 town car it was the idle air control valve sounds like you have the same problem


What kind of engine oil does a 2000 Lincoln navigator use 5w30 or 10w30?

According to the 2000 Lincoln Navigator Owner Guide ( 5W-30 )


Power relay 2000 Lincoln navigator air suspension?

how you find a air suspension relay in a Lincoln navigator


What kind of motor oil you need to buy for a 2000 Lincoln Navigator 2000 Lincoln Navigator?

According to the 2000 Lincoln Navigator Owner Guide ( 5W-30 ) * with engine oil filter change , 5.7 litres / 6.0 U.S. quarts of 5W-30 engine oil


Owners guide for a 2000 Lincoln Navigator?

You can view the 2000 Lincoln Navigator Owner Guide online at : www . motorcraft service . com ( no spaces ) Click on Owner Guides


Where is the air switch on a 2000 Lincoln Navigator?

On a 2000 Lincoln Navigator : The switch for turning OFF the air suspension compressor is located in the front passenger footwell , by the kick panel


Where is the cylinder 5 for 2000 Lincoln navigator 5.4?

On a 2000 Lincoln Navigator : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle