Sunday, March 2, 2014
How to Remove an EGR Valve from a 1999 Lincoln Town Car
Replacing the Exhaust-Gas Recirculation (EGR) valve on a 1999 Lincoln Town Car 4.6-liter engine will give the car greater fuel mileage and allow it to run more smoothly. The EGR recycles unburned fuel from the exhaust gasses back into the engine. A bad EGR can stop a car altogether, as it is part of the exhaust output and the engines vacuum intake system. Replacing the E.G.R. valve should take no longer than two hours if you have never done this type of work before. The tools and materials for this project are available at an auto parts store.
Instructions
- 1
Open the hood. Locate and remove the vacuum hose from the top of the EGR valve. The EGR. valve looks like a miniature flying saucer and is located on the top drivers side of the engine.
2Remove the small electrical harness from the EGR. valve with your hand. Thoroughly saturate all of the connections to the EGR. with rust penetrant or WD-40. Let it stand for five minutes.
3Remove the EGR mounting bolts using a 3/8-inch drive ratchet and socket.
4Free the EGR. valve from the EGR tube, using two open-end wrenches. The EGR tube is the protrusion from the bottom of the valve. Hold the EGR. tube completely still during this step so as not to fracture or break the tube. The tube extends all the way to the catalytic converter; you cannot buy it separately from the converter. Spin the E.G.R. counterclockwise to remove it.
5Install the new EGR, reversing the steps to remove it. Install the EGR tube connection first. Install the EGR mounting bolts and tighten them between 30 to 50 foot-pounds of torque.
6Reinstall the small vacuum tube. Snap the electrical connector onto the new EGR valve.
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