Nissan 3.5L V6 Ignition Coil Misfire - P0303 Cylinder 3 Misfire

Buy Nissan 14032-8J10A, Fuel Injection Plenum Gasket

Buy Nissan 14033-8J100, Fuel Injection Plenum Gasket

Buy Nissan 14719-4S100 EGR Valve Gasket

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NGK 6240 PLFR5A-11 Laser Platinum Spark Plug (1 piece)

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Shop Towel For Hands and Cleanup

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LED Work Light Rechargeable 20W 1600Lumen

LED Work Light 50W 5000Lumen (wired)

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LINK TO VIDEO SHOWING HOW TO REMOVE PLENUM

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In this video, I will fix a P0303 cylinder #3 misfire pending error on a Nissan Quest (2004). I will replace the ignition coil and the spark plug.

As far as numbering of the cylinder for this engine on the Nissan Quest.
If you are looking directly at the engine standing in front of the radiator:

(firewall)
Cylinder 1 3 5
Cylinder 2 4 6
(radiator)

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[realwordsoftruth]

I just want to say THANK YOU for your videos. 2 days ago the 05 quest started shaking and stuttering and the CEL flashed on. I keep a scanning tool in the van because the P0420 likes to come on at times and I just reset it. So the code came as the same cylinder #3 misfire. Ordered the parts on Sunday, locally, and called as a "what the heck" to my two mechanics to see the cost of labor. $300. ugh. So spend several hours on Monday looking at the videos to see how to do it myself.

Very slow and methodical, and struggled with that one bolt on the back bottom right of the intake. If it wasn't for that, would have gone quicker. also, a socket fell as I was trying to finish and putting the two bolt on the back of the intake ( the two in the back bottom closest to the firewall, not the group of 4 to the intake). Luckily, the last time my mechanic redid the valve cover in the back, the green connectors were left unattached from that bracket.

All in all, took 7 hours for me, which included lunch, breaks, two trips to the auto parts store for that torx socket and another stubby ratchet, since mine was too fat, and alot of latex gloves!!! But I saved $300, actually more as I got 3 ignition coils on sale for less than the price of 2 at the mechanic (if I took it there). I opted to do all three at once, with new plugs, because I wasn't going to do that again. 1 spark plug was actually cracked on the tip. So glad I did them. You Rock!!!!

[repnatl]

I found it a lot easier to remove the entire upper plenum with throttle body, and I highly recommend anybody doing a tuneup on a Nissan or infiniti to replace ALL coils at the same time to prevent having to take it all back a part again lol

[didierjuges]

Thanks for the video. I would recommend putting a large rag over the intake once the plenum is removed. You do not want to drop a bolt or anything else in the intake.

[xvxjimboxvx]

Some of the best repair videos out there. I had a quest and done a lot of repairs because of your videos just wanted to say thanks.

[sojourncyclery]

I don't think I've ever watched a video that was completely void of troll comments. Congratulations! This speaks volumes about your professional quality video. I even liked your choice of music. Exactly the right length, detail, and pace. I got a quote for $700 to have mine done on my 07 Quest. After watching this I may take a stab at it myself. My Quest has over 200K and it has a lot of other issues. Very well done and thank you!

[rambor]

It was really helpfully pointing out the code for the cylinder # being the last one and showing the order of 1-6 . Thanos

[moisessantacruz]

I did my 05 Quest and I removed the two bolts holding down the back bracket it’s showing on minute 4:35 instead removing all four bolts it was a time saver and easy doing it that way. Thank you for posting this great video

[pauls]

Great info. It was exactly my problem. The layout was a bit different what you described but the solution was the same. The coil that was bad on my 02 Pathfinder took 20 minutes to remove and replace. Thank You.

[wshep]

Thank you for sharing your expertise !!
Exactly what I need to do to my 2005 Quest.
My No. 1 cylinder is coding a misfire. I haven't checked under the hood yet though.
I'm hoping they put my engine in backwards so I can get to the cylinder easier. You know, like they do for European models because they drive on the other side - fingers crossed 🤞🏻

[wimzrxsf]

Great video I'm in the middle of doing my tune up going to change valve covers and coil while I'm back there I also did my front struts figured with the cowl off might as well.Thanks again for the great video's and advice.

[ewf]

I like that you went ahead and replaced other things just because!

[carlwheeler]

My son's 2005 Altima just threw a P0303 code last night, thanks for the video !!!

[jfoley]

The music in your video is so soothing it makes me feel like my problem isn't all that bad.. 😄

[dhestondh]

You made so much more work for yourself all you had to do is take that whole intake out as one piece

[MrPatdeeee]

I am with you all the way when it comes to buying parts; in that most of them should be Nissan parts This goes with MOST things you buy. Yes other parts manufacturers will save you money for sure. But they often cause aggravating problems too. Believe me I have experienced this many times in my 88 yrs old. And so have many others had the problem.

For what it's worth, I disagree with removing the "studs" when removing the intake plenum and EGR parts. Simply remove the nut. There is simply no need to remove the stud. Worse; when you remove the studs it is easy for the gasket to move from where it is suppose to be when installing it. Even a little bit it can cause MAJOR problems in the engine.

I can not emphasis this more. For, IF that gasket moves slightly from where it is suppose to be, you can have a problem difficult to find in the future. The sole reason for the studs; are to stop this problem. Please consider this. Practically, this can be proven with common thinking. IE:

Why are 3 of the intake plenum fasteners "BOLTS" and yet 2 are "STUDS"? They could have used 5 bolts and it would fasten the plenum the same. Again the studs are to insure that the gaskets are kept IN correct place. In fact the shape of the gasket is designed to stay in place; while installing the intake plenum (manifold).

NO disrespect meant here. I am simply trying to keep DIY'rs from a problem when working on their cars; that happens a lot. Believe me. The same problem is with the EGR replacement. Never remove the studs. Simply remove the nuts and change it. This insures that the gasket stays on correctly when tightening.

Again, no disrespect. I love your video's.

[dannyp]

Excellent video. Im about to starting working on my quest. I have the same problem. Keep up the good work!!

[VictorMartinez-lrbb]

one of the best video ever seen. Thank you. I have the same problem bud in Cylinder #1 P0301.

[antoniocarvalho]

Thanks for the video. Merci beaucoup pour la vidéo

[jamesprice]

I have the same problem that u mentioned so now I think it is my coil packs because all three is black and probably the ones in the back are too and I'm going to replace all of them thanks for showing me the problem in your video I needed that truly

[terrysmith]

Great video. Clear, concise, and helpful. Thanks!