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How to Replace EGR Valve 2002-03 Mercury Mountaineer 4-6L

Created on: 2014-10-13

Find out how to replace the EGR valve yourself by following the steps in this how-to video

  1. step 1 :Removing the Engine Cover
    • Remove the two 11mm nuts from the engine cover
    • Lift the engine cover and unclip the hose on the back
  2. step 2 :Removing the EGR Valve
    • Remove the hose from the EGR valve
    • Loosen the nut on the valve with a 1 1/16" wrench
    • Remove the two 10mm bolts from the EGR valve
    • Remove the EGR valve
    • Pry off the gasket if necessary
  3. step 3 :Installing the New EGR Valve
    • Insert the gasket onto the EGR valve
    • Thread the bolts through the valve and insert it into place
    • Tighten the 10mm bolts to the EGR valve
    • Tighten the nut with a 1 1/16" wrench
    • Insert the hose to the EGR valve
  4. step 4 :Reinstalling the Engine Cover
    • Insert the engine cover into place
    • Clip in the hose to the back of the engine cover
    • Tighten the 11mm nuts to the engine cover

Tools needed

  • 1-1/16 Inch Wrench

    10mm Socket

    Ratchet

    11mm Socket

Brought to you by 1AAuto.com, your source for quality replacement parts and the best service on the Internet.

Hi, I'm Mike from 1A Auto. I hope this how-to video helps you out, and next time you need parts for your vehicle, think of 1AAuto.com. Thanks.

In this video, we're going to show you how to replace the EGR valve on this 2003 Mercury Mountaineer with the 4.6-liter V8 engine. It's the same part and similar process on the these Mountaineers from 2002 to 2003. The items that you'll need for this include a new EGR valve from 1AAuto.com, a 1 1/16" wrench, and 10mm and 11mm sockets, and a ratchet.

Start off by removing these two 11mm nuts. We'll just fast-forward as Mike does that. Lift the engine cover up and off. Then open up the clip on the back and pull the hose free.

Now your EGR valve is right here. You can just pull this hose off the top of it. It's held in with two 10mm bolts and then this large nut right here. You want to start off just using your 1 1/16" wrench to loosen up that nut. Then, after a couple turns with the wrench, it will loosen up enough where you can just loosen it the rest of the way by hand. We'll continue to fast-forward as Mike removes those two 10mm bolts. As you pull out that second bolt, your EGR valve will pull free.

On the left is the old EGR valve; on the right is the new one from 1A Auto. You can see they're identical and they'll fit exactly the same. Our old gasket came off right with the EGR valve, but if your gasket sticks to the intake manifold you'll need to remove any gasket material.

Start the bolts into the new gasket, and then start the bolts into the engine and tighten them up. Then line up that tube and twist that nut into place by hand. Once you get it in as far as you can by hand, just tighten it up with that wrench. Push this hose back into place, take your cover, and push it back down into place to make sure those clips push back in. Then replace those two 11mm nuts and tighten them up. Then push that hose back into the clip and close the clip.

We hope this video helps you out. Brought to you by www.1AAuto.com, your source for quality replacement parts and the best service on the Internet. Please feel free to call us toll-free, 888-844-3393. We're the company that's here for you on the Internet and in person.

1997 - 1998  Ford  F150 Truck
1997 - 2000  Ford  F150 Truck
1997 - 2000  Ford  Expedition
1997 - 1998  Ford  Expedition
1997 - 1998  Ford  F250 Truck
1997 - 1999  Ford  F250 Truck
2003 - 2003  Mercury  Mountaineer
2005 - 2006  Ford  Mustang
2002 - 2002  Mercury  Mountaineer
1999 - 2000  Mercury  Mystique
2002 - 2003  Ford  Explorer
2002 - 2002  Ford  Mustang
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1999 - 2000  Ford  Contour
1999 - 2000  Mercury  Cougar
1997 - 1997  Ford  Ranger
1998 - 2000  Ford  Explorer
1996 - 1997  Mercury  Cougar
1997 - 1997  Ford  Aerostar
1997 - 2004  Ford  Expedition
1997 - 2002  Ford  F150 Truck
2003 - 2004  Ford  Mustang
1996 - 2000  Ford  Mustang
1996 - 1997  Ford  Thunderbird
2001 - 2001  Ford  Mustang
1996 - 1996  Mazda  B3000 Truck

EGR Valve

Ford Mazda Mercury EGR Valve TRQ EGA48376

Part Details:

  • Yes
  • Pneumatic
  • Mechanical
$69.95
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