How to Replace Ignition Coils 2002-06 2-5L Nissan Altima
Created on: 2017-08-25
New Ignition Coil from 1AAuto.com How to repair, install, fix, change or replace a bad or broken ignition coil / coil pack on 02, 03, 04, 05, 06 Nissan Altima
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step 1 :Removing the Engine Cover
- Remove the four 5mm Allen bolts from the engine cover
- Lift the cover off
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step 2 :Removing the Ignition Coils
- Push in the clip and disconnect the connector
- Remove the 10mm bolt from the ignition coil
- Lift the ignition coil up and out
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step 3 :Installing the Ignition Coils
- Insert the coil into the engine
- Tighten the 10mm bolt to the coil
- Connect the connector
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step 4 :Reinstalling the Engine Cover
- Place the cover over the engine
- Tighten the four 5mm Allen bolts
Tools needed
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5mm Hex Wrench
10mm Socket
Ratchet
Use a 5mm Allen key to remove the plastic engine cover. There are one, two, three, four bolts holding it on. Lift that off and put it aside.
These are your four ignition coils. I'm going to show you how to remove this one, procedure will be exactly the same for the other three. Start by pushing this clip in and wiggle the connector out. Use a 10mm socket and ratchet and use a retaining bolt. Put that bolt aside. Grab it on both sides, and kind of wiggle it, because there is a boot that goes down over the spark plug. It's got a little suction to it. Pull it out and that's how you remove the coil.
Here's our old coil from our vehicle, and our new coil from 1aauto.com. See, they're an exact match. Got the bolt holes on either side, same style connectors, and the same style connector at the spark plug end. This will fit perfectly, and get the car running great again.
Install our new coil packs. Now this bolt hole here is just a metal insert into this plastic valve cover, so we're not going to over-tighten those, just going to tighten them very carefully. So slide the coil down. Push it over the spark plug. It will sit in there. Get the bolt started. I'm just using my wrist to tighten it, and right when I feel it get tight, I'm going to stop, 'cause I don't want to pull this threaded insert out of the plastic valve cover.
Reinstall the connector, and repeat this procedure for the rest of the coils. Reinstall the engine cover, and reinstall your four bolts. These bolts are just going into aluminum, just holding on the plastic cover. Not a lot of torque on these. The job is complete.
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