How to Replace Ignition Coil 2002-05 Mercury Mountaineer 4-6L V8
Created on: 2014-10-13
If the engine is misfiring it could be the ignition coil. This video will show you how to do this straight-forward repair yourself
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step 1 :Removing the Engine Cover
- Remove the two 11mm nuts from the engine cover
- Lift the engine cover up
- Disconnect the hose on the back of the cover
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step 2 :Removing the Ignition Coil
- If needed, loosen the air intake hose clamp and remove the air intake hose to access coils 6 and 7
- Remove the 7mm bolt from the ignition coil
- Disconnect the ignition coil harness
- Lift the ignition coil up and out
- Remove the boot with pliers if it will not pull out
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step 3 :Installing the Ignition Coil
- Insert the ignition coil into place
- Tighten the 7mm bolt to the ignition coil
- Connect the ignition coil harness
- Repeat the process for any other coils
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step 4 :Reinstalling the Engine Cover
- Clamp the hose to the engine cover
- Insert the engine cover into place
- Tighten the two 11mm bolts to the engine cover
Tools needed
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7mm 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 ignition coil on this 2003 Mercury Mountaineer with the 4.6L V8 engine. The items you'll need for this include a new ignition coil from 1AAuto.com, and 7mm and 11mm socket with a ratchet.
Start off by removing these two 11mm nuts. We'll fast-forward as Mike does that. Now lift the cover up and you'll feel it release from the bracket. Pull it forward and then just open up this clip and pull the hose free and your cover's free.
The 4.6L V8 has a coil for each cylinder. On this side pretty easy to get to: one, two, three and four. Over here on this side you can pretty easily see that one that's here in the back. If you wanted to get to either one of these two here, you remove this screw and pull this from there, and you can pull these hoses off. Then the front one is right in here. Now just remove the 7mm bolt that holds it in place. Push the tab on the harness and disconnect it. Then pull the ignition coil up, bend it to the side, and then lift it up and out. The boot may stay behind if your ignition coil is in rough shape, so use a pair of pliers, reach in and pull the bottom of the coil up and out.
On the left is the old ignition coil; on the right is the new one from 1A Auto. You can see they're identical, and they'll fit exactly the same.
Take your new ignition coil and feed it down into place, and back underneath your fuel rail. Once you've got it lined up replace that 7mm bolt and just start it by hand, and then tighten it up with your socket and ratchet. Reconnect the harness and then repeat for any of the other coils that you might want to replace.
Once you've replaced whatever one you want to replace, put the cover back in place. Put the hose back on the back and clip it in place. Line up the two bolts in the front. Once you do that you can push the clips down there in the back, then put those two 11mm nuts back in place and tighten them up.
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.
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