Spark Plug Replacement DIY (the ULTIMATE Guide)

By the way if you shop at Advance Auto and use the code "ChrisFix25" at checkout, you will get 25% off your entire order (order anything, not just plugs). *I do not make a penny from this. I asked Advance Auto for a discount for my Subscribers (and I use it too lol). I hope that helps!

Too bad service manuals nowadays instead of giving u information, they say, 'go to your nearest authorized dealer' as the answer to all the issues

I watched 3 videos and now im a full time mechanic

“It’s a fairly simple job”
Subaru owners: cries in flat four

The amount of thought and work Chris puts in these videos is evident. These are the clearest, the best edited diy videos on KRplus.

*IMPORTANT!: IF YOUR SPARK PLUG BROKE INSIDE OF YOUR ENGINE, READ THIS!*
So, the other day I changed my spark plugs, and as I went to remove one, it broke, leaving the metal threads in the head of my engine, while the ceramic portion came out. So, if this happens, try this first before you have a mechanic take the head off to remove the hollow shell of the theads.
1. Get a #5 size "easy-out" screw extractor bit. These are used for removing screws with stripped heads.
2. Attach your 10 inch extension to your 3/8in ratchet.
3. Get a 7/16in size, 3/8in drive, star socket, and turn it *backwards* so the star portion is on the end of the extension. It should fit, but wont be snug.
4. Insert the square end of the screw extractor bit into the square hole in the 7/16in star socket.
5. VERY slowly, screw the extractor counter-clockwise (to the left) into the inside of the shell of the spark plug.
As the screw extractor bites into the inside of the broken spark plug, it will slowly unscrew it as well, saving you potentially hundreds or thousands of dollars by not having to take it to a mechanic. I had to do this on my 2011 INFINITI G37x and it came out fine. Just MAKE SURE you unscrew it VERY slowly and you wont have a problem. Use a long skinny magnet to remove it from the inside of the engine.
*Please upvote this as it could help people in a bad situation save some money!*

The main goal with all my videos is to teach you as much as possible in a clear, concise, and entertaining way with all the best and accurate information! I truly think 99% of you will learn or see something new in this video so I hope you enjoy it! This is the only video you will have to watch on how to replace spark plugs! Also if you change your plugs after watching this video, tag me on Instagram and I will share your posts!

Auto Zone sold me more expensive plugs (iridium) last year and my car has only run worse. Went to Rock Auto and bought the OE Manufacturer plugs (copper and 80% cheaper. $2 vs $10) and now my car runs so much better than those more expensive ones. I'd much rather swap my plugs out every 30k miles than the car run like crap for 60k+ miles. I always come back here for a refresher course on how to swap them out. Thanks again Chris.

I really admire this guy. And not because of all his knowledge about cars, but because he also edit his videos like a master... I just picture the amount of time that he must spend making them.... They are clear and to the point. Some of the most understandable videos in here...

*Car blows up*
“Hey Guys Chrisfix here”

I think I speak for alot of people, we all appreciate your charismatic attitude, and professionalism, unlike another mechanic KRplusr who just has to call you out :/
You've never come off as someone who is trying to 1 up anyone, just an honest guy trying to help people like me who are paranoid about working on their car 😂
Keep up with the fun and informative videos!

Who else knows how to do all this stuff but still watches the chrisfix video on it just cuz it's interesting?

I've seen many, many different videos on changing plugs over the years, but this one is by far the best. Touches on all the pertinent information, including referring to the owners manual (keeping it real) and safety (DO NOT do this on a hot engine). This is great practical information for the beginner and the expert alike!

I can’t even lie, this video alone saved me a trip to a mechanic. Was afraid my engine was spewing coolant around, causing some bad misfires. Checked spark plugs and oil reservoir. Clean oil. BAD spark plugs. Thanks a lot man!

So much effort in this video. You showed so many different cars and engine types. Great work man!

I spent quite a few years as a Technical Service Representative (TSR) for Autolite Spark Plugs. After seeing this video I must say that ChrisFix did a great job of explaining the "Art of Plugs" Well done!!

Once again you answered ALL my questions before I attempt this first time fix on my Ranger. You are my go to Professor for all car related DYI stuff on KRplus University. Not only the how to to, but great close ups, camera angle, lighting ect. Right to point no wasted time, all the info need to Get R Done.
Thanks Chris for all your work put out these videos!!!

Humans: Coronavirus
Spark Plugs: Coronastaining

Holy shit man, Chris is is such a bro. Not only a guide on replacing spark plugs, but several different engine layouts and what to do if you don't have a torque wrench and several different methods for testing plug gaps. These videos are always worth so much more than people could ask for.

3 years later and i used this video to fix my misfire!! Awesome job Chris, you inspired me to try something new

You have become one of my favorite youtubers because of your videos. I haven't seen many, only ones that are relevant at the time I need them, but you have been so incredibly helpful. Teach REAL helpful information and not the dumb stuff schools think are relevant. Knowing how to manage finances, knowing how to maintain your vehicle and work on it, and how to cook and clean among other daily life necessities should be mandatory. Things that I thought would be difficult to do on my car are surprisingly easy. You don't just show us how to do things but you are so thorough in teaching how, why, and when. You explain what everything does when it's relevant to the video, in this case the plugs and wires, what they do, how they are made aka the anatomy of the pieces, how to use certain tools for the job, when this should be done, how to find the information that's relevant to our specific vehicle, different options, in parts, etc. Thank you!

To me. Chris is my most respected automotive youtuber...he just does his own thing and doesnt have to go after everyone who pokes fun at him...*Cough* ...rev up you engines...

Hey Chris I'm 7 and I watch your videos and I even told my teacher how good I was on cars and my dream job is to be a car engineer and my dream is to meet you. You are one of the best you tubers I watched and I started watching you when you 136K subs

New game: drink every time he says spark plug

I've been learning a lot with you Chris. I've started working on my car since I watched you first back 5 years or something. Since then I do repairs myself. Thank a lot!

You even mentioned the boxer engine. I love you.

Chris... I too, have been working on cars, not professionally, for over 50 years. I prefer your channel as you show how most car repairs can be done at home with a minimum of tools. That in itself makes your channel great. I'm sticking with you. BTW, your subscribers show a lot of class by not getting into a pissing match with that other group. Keep up the great job. As always, thanks for taking the time to teach others.

The most comprehensive auto repair videos on the web, hands down! Thank you, Chris.

Thank you so much! I started working on my own car after your brake tutorial and I was also to follow this one and I changed both my brakes ,wires, and spark plugs for less than a third than I was being charged for my old honda accord. I appreciate, keep doing what you're doing

Goodness this is the kind of quality information you would have to pay thousands of dollars at a trades college to get! Keep up the amazing work Chris, you've done so much to help and inspire so many people to work on their cars!

Engine idle and rev comparison:
Misfiring spark plug: 2:27
New spark plugs: 21:00

Thanks Chris for your knowledge & advice. You're very clear with your comments & you do a great job keeping your points concise & as brief as possible. Love your work Mate... thanx again!!!

I replaced my wires and upgraded my platinum plugs to iridium plugs on my 2001 Camry with the help of this video. I fixed a misfire problem I had and now my engine feels like she has power now. Thank you !

I was never a car guy, but you have gotten me interested in it and when a problem arises from car, I actually get excited. Thanks man!

The details you explain are so informative . I can hardly express my appreciation. Most people wouldn't bother and most manufactures just say every plug they sell is the best.
As the saying goes, 'the devil is in the details'.
When you say to do something or not, you explain WHY. To me, that means a LOT !

Thank you so much for showing the different style engines! Mine, of course is the last one but you took away the intimidation factor I found in other videos where they removed the engine cover. The wiper cowl is so much easier!

Thank you Chris, you are truly a god in the automotive world for young enthusiasts like me. Can't wait to use these tricks when I have a car.😄

There is always something new to learn in your videos men. Great work and dont listen to the other haters. Old grumpy people are just grumpy

Terrific video! I've replaced many plugs but that was back in the days before on-plug ignition coils. My task was a 2009 Lexus RX 350. Front coils/plugs were a breeze. The rear not so much. This is a common problem with that engine. But that's a whole different story. Thanks again for the thorough video!

I bought a car a week ago, 75k miles on it. The owner took care of it, but not that much, so I decided to get into it. I have built FPV Drones, I fix computes and cellphones, so I felt confident. I changed my filters, put some new LED bulbs for the headlights, and the big! I changed the Sparkplugs today, took me around an hour, but I did it. Thank you so much!

This is how much I love your videos I know how to replace spark plugs from any engine and I'm still waching

Please make a video about cleaning inside a car, especially car seats. That will be very nice.

One of the most comprehensive videos on spark-plugs replacement topic. Thank you so much!

I love your videos Chris , honestly I like learning on how to work on cars and I wanna get good enough to do everything on my own, and you make me feel like anybody can do it with the proper knowledge ! 😁

I'm driving a diesel but I watch the video. That's how nice your content is! :D

Can you do a video about painting a hole car, maybe on the del Sol.

He makes working on cars sound fun! And it really is when he helps you understand how things work

Hey chris my moms car was having a misfire and i remember watching this video when it came out. so 2 went to Walmart and got a cheap obd2 reader, cylinder 2 was misfiring- got a new spark plug and changed it out myself. spent around $30 for everything i needed while my mom was charged $150 just in labor to change them! Thanks chris for teaching me everything i know! :D

Id love to watch you install a supercharger or a turbo

Thumbs up for having the foresight to demonstrate on less common / more difficult engines to change plugs on - particularly the Subaru H4.

I had never worked on cars before but this gave me the confidence to change the plugs on my '14 WRX. Definitely not the easiest but this video helped a ton!

Amazing video after so many years, Chris content quality and super detailed explanations are not only desired but almost mandatory to then go on and do it. I'll be doing my first spark plugs and cable job next days... Wish me luck!

Dude. Your videos are pure brilliance. Ive been a home mechanic since a teen and i still learn from you. There is nothing quite as pleasing as working on your own car and saving a ton of money in the process. Keep it up Chris, truly a great job.

Dude.. premium content, nobody does it better

Well explained and thorough videos...also this might be the first videos ever on YT that doesn't have any thumbs down/dislike that by itself tells you how good a channel is that there are no haters...thank you for your time and service!

My 2010 Mustang was sputtering severely just about anytime I pressed on the accelerator. I tried changing the fuel filter which didn’t help. Then stress ensues as I feared tackling this job. But I did it and it was a success! My Mustang runs better now than ever before, and with ZERO sputtering! Whooo! THANK YOU CHRIS!!!

Chris really did his homework and i liked it :)

You don't give us just "Hot to replace" you give us so much more information about that (in this case spark plugs) whats good , whats bad, what should we do, what not to do. Other videos show us just how to replace and that's it. You show and give the best of you. That is why I like and enjoy wacthing your videos. Thank you @ChrisFix

Thanks Chris, I'm slowly falling in love with mechanics and I want to get my first project car soon! :)

The way you explain these how to fixes are so simple and easy to follow along. I have a learning disability but I can have a good grasp at mechanics. Unfortunately the people I've tried to learn from do not have the patience to be as thorough yet simple as you are. I really like this content and I'll be sure to subscribe and link your videos to friends I have that may need the guidence you provide. Thank you, this made everything very easy to learn and gave me confidence that I might be able to do these projects on my own without going to a commercially over priced shop.

Props to you! Every video I've ever watched from you is well thought out, well prepared and executed! A lot of work but the product shows. Very good teacher. To think people pay thousands in school when we get this this free instruction.

Chris you the mahn...I always used to be scared while working on my car. But after I see your videos, they gimmi a boost to work on my car. I drive a Honda Accord V6 and I've worked alot on the vehicle. All thanks to you. Till now I've done replacing the head gasket, did some brake jobs, and many more things.. Thanks mahn.. Much love all the way from India🤙🏻🤙🏻

Wanted to say thank you for making vids like this one as it helped me to change out my spark plugs and ignition coils on my Camaro. Took me a little longer than I'd thought when I planned everything out beforehand but got a great sense of accomplishment from being able to do the work myself. Thank you again for all the work you do in putting together these helpful & informative videos.

Just wanted to say I've been watching ur videos because I'm buying an old Ford ranger and needed help. Been watching u for 2 days now and have fell in love with how u show how to do stuff. I went all the way back to ur first few videos and u sound sooooo happy now. Keep up the great work

Thank you SO much for including a Subaru and showing us how to get to the side-mounted plugs!

Post more vids i have been watching since the beginning you have inspired me to become a mechanic.

Hi Chris,
You are a DOCTOR, and Professor, not just a mechanic.
Two thumbs up.
If it's in my hands, I honor you an OSCAR.
The way you speak, clear, clean, neat, well organized, professional, and straight to the point.
HATS LIFT UP SIR.

I just replaced my sparkplugs for the first time ever and this video helped so much. It felt amazing that I took care of my own car and did my own maintenance. Thanks Chrisfix!

I think you are number 1 in Car guide on youtube. You explain better than anyone

“This is the perfect job for beginners” *cries in 5.4L triton*

Did my spark plugs for the first time today for $45 in under an hour. Mechanic wanted 3 hours of labor, plus a markup on parts! Appreciate all of your videos, wouldn't have tried without watching!

The camera work with the narrative hand movements is top shelf

Thank you Chris for inspiring me. I now have a job as a mechanic and could not be happier

It's like Christmas whenever ChrisFix uploads

There’s no other channel in this category, like this one. Chris, keep up the great work

I'm so impressed with your videos and knowledge. You did miss one engine which is the one I currently have which is the Nissan 2.5 where the entire intake manifold has to be removed to see a spark plug. I'd love to see a way to make this a bit easier. Big fan older guy.

Im a car mechanic replacing plugs on daily bases yet i watch this😂

I was wondering if you were going to mention more "troublesome" engines. I was not disappointed.

Today I finally decided to replace my spark plugs on my Kia Spectra 2007, and I would never had done it myself without this video!
I definitely almost screwed up 'cause I didn't attach the spark plug to the socket correctly, so the plug fell off inside the well :( luckily the plug was fine.
Also my ratchet wasn't grabbing the spark plug socket after installing the new plug, so I had to tape the extension bar to the socket lol.
I'm so grateful, you are amazing Chris. This is my second DYI thanks to you, sending some love from El Salvador.

just searched how to replace spark plug and found your video. Thanks, you answered all the questions I had and some I didn't had before. Best how to video on subject. Immediately subscribed to your channel.

This is so much quality content ! I dont do this repairs. I just watch this because is so much interesting and well educated.!

QUALITY > QUANTITY Content !!! its always worth waiting for your videos !!!

I really enjoy your detailed and professional videos! Your channel is my first source when it comes to DIYs for autos. Appreciate your efforts. 👍

I’m so happy I found yo KRplus channel I just got my first car a hand me down 2007 Nissan versa sedan and I’m learning as I go I’m learning a lot of stuff late but I’m using your videos to teach me on this journey 😁

Weird how your videos are more helpful and informative than that mechanic with 50 years experience.

And yet again, ChrisFix has answered all my questions in one well put together video.Great job.

How to gap your spark plug:
1. Put it in the ground next to your car
2. When the light turns green, launch the car

Chrisfix has the best channel on youtube, so well written, presented and edited. you rock man

Thanks Chris, did my 2001 z28 camaro yesterday with the help of this video. Never done plugs and wires by myself before. The car is running better than ever! Highly recommended.

I don't have a car but I love to watch your videos because everything is so well done.

Currently binging this channel like crazy, have no car, got a learners.....but point is: THE EDITING of these vids is INSANE!!! Great work, man!!!

Professor! All your videos are professional, very logical, short but complete, step by step. I can't believe it's all in one person. Therefore - the professor of the Automobile.

Love your videos Chris I have been watching you from almost 2 years love your effort and ur videos keep up and dont stop what you are doing brother! 💪💪

Really, your videos are awesome! So detailed, organized, high quality image. I spent 6h watching your videos last Saturday with no stop. Great job! Thanks!

Said it before. These are the best videos on YT dealing with automotive. Great script, video, sound, attitude, etc. THANKS

Me: How do i fix my marriage?
Chris fix: Just grab your owners..... nevermind.

Had no idea I was also going to see how to change the spark plugs for my '17 WRX STI in this video. Thank you for the thorough guide. The compressed air shot to the hole is something I wish I knew back when I had my integra

I always learn so much from your videos! 👍🏼

thanks for being my hero 4 years later i just got an 88 monte carlo and your videos are helping give me the confidence to work on it myself instead of spending thousands at a shop :)

Bro. I appreciate you. You made something that sounded complicated, look soo easy. I will for ever do my own spark plug maintenance. 🙏🏼