How To Replace The Spark Plugs On A Mazda CX-9
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- Опубликовано: 21 окт 2017
- Brian Eslick from How to Automotive www.howtoautomotive.com takes you step-by-step through the process of replacing the spark plugs on a 2006-2015 Mazda CX-9 with a 3.7L engine. This video also features the new Milwaukee Tools M12 FUEL 1/4 and 3/8 cordless ratchets.
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Owing to factors beyond the control of How to Automotive/Brian Eslick, it cannot guarantee against unauthorized modification of this information, or improper use of this information. How to Automotive/Brian Eslick assumes no liability for property damage or injury incurred as a result of any information contained in this video. How to Automotive/Brian Eslick recommends safe practice when working with power tools, automotive lifts, lifting tools, jacks and jack stands, electrical equipment, blunt instruments, chemical lubricants, or any other tools or equipment seen or implied in this video. Because of factors beyond the control of How to Automotive/Brian Eslick, no information contained in this video shall express or imply warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or information contained in this video is the sole responsibility of the user and not How to Automotive/Brain Eslick. #howtoautomotive #MilwaukeeTools 
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This is one of the most informative how-to vehicle maintenance videos I've seen. Includes socket wrench size, torque specs and detailed step-by-step instructions. Great Job. Pain in the A$$ having to take off the intake manifold.
Thank you! I agree it is a little bit of a pain to take the intake off. Thank you so much for watching!
@@HowtoAutomotive HOW MUCH DOES A JOB LIKE THIS COST??
This just may be the single best automotive how-to tutorial that I’ve ever seen. My wife’s CX-9 started running horribly yesterday. Out of nowhere, my gut feeling was that it was an ignition coil or a spark, plug, sure enough it kicked up a misfire on cylinder three (Natalie had to be cylinder three, the absolute worst one to replace). I’m handy, but I’ve never done anything like taking off the intake manifold. It took me a while, and I must’ve watched this video 10 times total but I was able to get through the entire job and it resolved the issue for 100 bucks out the door. If I brought that to a shop, it would’ve been hundreds more I’m sure because of the labor. Thank you much dude, you’re a lifesaver!!! Literally everything you need to do for this job is in this video.
My local Mazda dealer just quoted me $780 to replace them.
Fantastic job 👍👍.
Thanks for this tutorial. My Mazda CX9 has been running horribly for a long time and thought it was a transmission issue but after reading some of the comments to this video I thought maybe it’s worth changing the plugs and the coils at the same time as it’s such a pain. WARNING there is one plug that is missing in the video on the back driver-side near the hose that is a bit of a pain to get out, I found it easier to pull it out of the top of the engine than to pull the clip off the Air intake. Also make sure no debris falls down into spark plug holes or intakes. Good luck. No misfire codes were up but was misfiring at about 1500rpm under light acceleration. Suspect original plugs at 250k km. Gap was 1.7mm. Recommend is 1.3_1.4mm. Not one miss after one week and better low down power. 👍👍
I know this video is old but it's very informative. This is the best video I have seen so far with instruction on torque specs. Very well done.
Thank you!
Great video! I could not have replaced my spark plugs without this tutorial. Thank you.
Great video! Clear and concise.
Many videographers can learn a lot from your video style. Thank you for posting.
Excellent instructions. I was hesitantabout tackling this job, but i took my time, followed your very clear instructions, and car runs great. Thank you!
Awesome glad the video was helpful. Thank you for watching!
Best vehicle instructional video ever, thank you so much.
You are a gifted teacher and this video was much needed.
This is very helpful for me, as a beginner with limited skills. Thank you. My buddy had a 2008 CX-9 Grand Touring that the water pump failed on - and he got a hefty estimate for the pump repair so I bought it from him because my next door neighbor is a great mechanic & recommended I get it so he can help me. That engine is too concerning for me after reading in forums that when the water pump fails, the coolant mixes with the engine oil... which is never good so I'm selling it because I don't want to take the chance, even though my neighbor thinks it's just laborious. I'll put the parts back together now after watching your video.
Keep in mind Ford updated the water pump. It also has a weep hole that's supposed to leak externally out of the block before the pump fails and leaks coolant into the oil. Check your oil and coolant level when you fuel up and you'll be fine.
fantastic video, super easy to follow and great pace. couldn't be better! thank you
Brian - This was super helpful and an excellent resource. Well filmed, good lighting, excellent audio; just all around good stuff, Great job sir! You've successfully squelched my concerns about doing this myself, a pain in the back side no doubt - but doable. You've also proven why this is worth it when paying a professional mechanic to do this - it's very involved and time consuming.
Thank you for this video. I just changed my plugs on a 2009 Mazda 6 3.7 L. It was pretty easy.
GREAT walk-through, Brian. Thanks!
you did a phenomenal job walking through every part of the job....thank you so much, Brian!!!!
Excellent tutorial. Doing this in a few days. Thanks for the links for the gaskets
Great video, really appreciated the fact you mentioned socket sizes and torque settings for the bolts. This has been a huge help!
Thanks again.
spc3myers Glad you like the video. Thank you for watching!
@@HowtoAutomotive monomer no erppnnk9ovvpbbobbob pop pep
Lol pov no VP cc BB v cc BB ocppn 00 jm7v on be BB b be pb o:p ;⁰gg&ghghg
Thank you for taking the time to put this video together! Great tips!!!
Mark Levi thank you for watching!!
Thanks Brian. My wife's '10 CX-9 is approaching 200k and I want to change the plugs. You have made it easy for me.
Glad to help. Good luck with the spark plugs and thank you for watching!
Excellent video and description! Love the mention of sizes, torque, and order putting everything back together. I love the last second correcting the upside down oil cap. I like always having it face upright too! :) Well done, Thanks!
Thank you for making this video. I have a 2014 cx-9 and wondered how to do this.
What a great Video, very informative & well presented, Brian thank you for taking the time & sharing.
Just finished a 2010 CX9.....Thanks for the help! Saved me a lot of time and guessing....
Your videos are so informative and great camera work.
Daniel Abela thank you! Glad you like them.
Thanks for the tutorial! It was easy, fast, and painless!
Thank you for the step by step instructions! Really appreciate it.
Jonathan Kim thank you for watching!!
Great video! Thank you for the primer before i tackle this on my 07.
Excellent instructional video!
Thank you for showing this DYI.
Thanks for this video. At first the task looked very daunting but you reduced my stress.
william ingram jr glad the video was helpful. Thank you for watching!
Most outstanding video! Straight to the point and complete. Well done!
Thank you!
Yeah, this i'll just pay for someone else to do. I don't have the tools to have this be a home job. Excellent video!!! thank you!!!
Yup same here, my wife was talking about taking it to mazda and I'm like i can do it . But nah, I'll also just send it to the shop
$50 in tools
@@WarriorOfEden3033hat is without torquing to specs. If you want to torque to specs plus the correct tools like the spark plug socket, extension, and the torque wrench, then it will be more than $50.
@@hyperspaceexplorer5594 don’t need expensive tools to maintain your own car
Thank you so much for sharing your knowledge looking for more valuable videos.!
I'm glad you corrected the oil cap orientation at the end 👍🏼
Ok so thank you so much for this! Did it myself and it wasn’t bad at all. I wouldn’t have changed the gaskets because mine looked and felt the same as the old ones but whatever. You can absolutely do this without the Milwaukee tool . It did look nice though.
Very helpful!!! Thanks!!! Do you have a video on how to change the valve cover gasket for this car?
I am a huge believer in using the OEM plugs only.Have seen so many problems with those problematic Bosch and E3s causing misfires
Thanks this was very detailed information really helped on the change of my vvt
+David Gallegos glad the video was helpful. Thank you for watching!
You are best I have seen. Your informative technique is fantastic! Thanks so much!
Thank you!
Thanks for the walkthrough! Helped me replace the plugs on my 2010.
Is it possible to do without removing the airflow system
Aubrey E. Jones no, the upper intake covers up the rear bank of cylinders.
Extermely helpful and very well done. Thank you!
Jeff Ashton glad it helped. Thank you for watching!
I just changed my CX9 plugs using this video. Very complete and accurate. I watched all of the videos on RUclips, on this subject, and this is the best one, IMHO.
No error codes and it runs noticeably better. Thank you!
What changes did you notice? Mine is slow on acceleration and once in a while starts hard
@@KN-mi7mh That is exactly what mine was doing before I changed the plugs. I also changes the PCV valve while I was in there. It was definitely bad (oil consumption, oil on the intake). PCV is a cheap fix. Common.
No codes prior either to suggest plugs. Changed them at 100k miles.
Great video!
I could do the job thanks to you.
Thank you very much!!
Thank you thank you thank you! I am about to change the spark plugs on my 2007 CX9!
Very good video Brian, by any chance do you have a brake booster replacement video on that same CX-9?
After opening trottle body, whether to reset idle learn volume?
I did this along with spark plugs and coil plugs and it restored all the lost power and fuel economy. Great video.
Glad the video was helpful. Thank you for watching!
Mark, how long did it take you?
@@smith6098
Probably five hours or so. Only thing I did different is removed the fuel rail from the injectors by removing the clips while it was in the vehicle. My injectors were stuck so I didn't want to damage the rail by pulling the injectors out with the rail. Then I clamped some channel locks lightly on each injector and pried with a screwdriver on the jaw of the channel lock while pulling. That's only if they are too hard to just pull out. Reassemble the injectors, rail and clips like he did in the video, lube with some silicone grease lightly and they should seat in nicely. Make sure the clips are seated correctly. I gave the clips a little pinch before I reinstalled them. I also removed the battery, cleaned the intake manifold and cleaned the throttle body. Also you can leave the hose on the back left clamped on the manifold and just disconnect from the bottom because there is no clamp it just pulls off. Last thing, clean the injector ports real good. Mine were filthy. I used a Phillips screwdriver and covered the tip with a rag lightly turned the screwdriver in each port till they were clean. Very light though, you only want the rag touching no the tip of the screwdriver. Last thing, I removed the wire harness covering and replaced it because it was brittle and cracking, it will get everywhere so just replace it if it's cracking. I blew out the engine area and wiped the down till all the crud was gone. Sorry for the novel but it's fresh in my head. Hope this helps.
This video is exactly what I needed!
Thank you for the instructional help video. It really helped me with the maintenance I need to do on my CX9. Thank you!! ❤ Btw…I can’t seem to find which valve and throttle body gaskets that you used. Please help.
Great video. Really good explanation. Thanks!!
Alejandro Torres thank you!
Thank you for the lesson
very good information i realised that i just as well pay someone to do it..its more work than any other car that i have worked on before.huge help before i start something that i might not be able to finish
kamau stephen Glad to be your help you make the right decision. Thank you for watching!
So very helpful! Thanks! We got the job done!!
Nice. Thank you for watching!
Great video mate!!!!
But you are the best teacher I've seen thank you so much
Thanks a ton. Helped me save $600.
Great vid very helpful
Great video and explanation with detail! But man that is a lot just to change spark plugs hahaha
Thnx for video. Very helpful..
vicky rachmanto glad the video was helpful. Thank you for watching!
This is need a great video by far in this topic and I am going to save a lot of time and money. I have one question though, my 2012 spec says .051-.057 should be the gap but the plug used in this video comes pre gapped at .044. Should we re gap? Or it will cause roughy engine. @HowToAutomotive
Stellar video. Well done, sir.
Thank you!
Thank you for this video! I am having a shop replace mine today and after watching this I see why they are charging me what they are. I'm used to my little car's spark plugs being a ten minute job and this is a lot more complicated. Now that I have found this video though, I think next time I will do it myself. I'm having the shop change out my engine and transfer case oil too while they've got the car so it is worth it to me on this rainy Oregon day to let someone else handle the job :) Thanks again!
Nice video. Where the wire loom is connected to the front driver’s side of the intake is a question. The loom bracket has a spring that goes into that raised hole. What is that?
Mazda dealer just quoted me $1200 for the labor&parts. Independent shop quoted $500. Both in San Francisco area. Thank you for the video, I think I will give it a shot myself.
what gasket kit did you use? I have a 2008 CX-9 Touring, I suspect it will likely be the same
Very helpful. Thanks!
do you have to change the gaskets if they are in good shape??
Very descriptive! Thanks
Very helpful😁 Thank you!
Tony Duong glad to help. Thank you for watching!
In the front on the vent line going to the valve cover on the other end of the line that attaches to the air cleaner, there is a plastic tube that connects the line to the air cleaner. Do you know what that plastic tube is called? I broke it and need to buy a new one but I don't know what it is called. Thanks.
I was thinking about buying a (3.7engine) Mazda 2011 GT with 69,000 miles should I change the water pump and timing chain?
Life saver. Thank you!
Do you have to take the throttle body off? Looks like I could just unplug it and still remove the intake. Can you confirm this?
Great video
Great video, but should you have cut off power from the car battery before replacing? ...
Can you tell my wats the name of the plug that is connected behind the intake monifold
Did this today. It’s a big job. Beware of the hoses behind the manifold. He makes it look easy but it was a bear to deal with. Good news is car runs good again and what I thought was a transmission issue was just a tune up needed on 200k spent plugs and coils.
That’s exactly what I thought it was transmission problem
excellent video
Thanks for this video!!!
Thorough and Concise.
What torque wrench did you use? The only ones I can find online start at 10ftlbs.
Great video! I noticed you installed the NGK LTR6IX-11. Is the thread pitch a little bit longer than the Motorcraft SP-411 AYFS22FM (the stock one)? My mechanic is saying he cannot install my recently bought NGK LTR6IX-11 for my '08 because it is not the same size as my current one, and if the NGK ones are installed, it might hit the pistons which will cause serious damage to the engine. Is that really the case?
The support bracket bolt won't completely bolt back in but everything else is aligned what should I do ?
Change spark plugs in older car: 20 minute Job
Change spark plugs in modern vehicle "Hey Boss I need t take a few days off"
Seriously. What a fucking pain in the arse!
Sideways engines. Yay
@@DjCBlaq its by design so that consumers have no choice but to take it to the shop. just like the trend is with seal transmission.
@@maolo76 How is this any different than with older cars? If you are somewhat handy with tools and want to invest the time, you do it yourself. If you aren't, you pay somebody.
These days, you just pay them more than you would've 50 years ago ;).
@@maolo76 I had to deal with the same thing on a transverse v6 30 years ago. Nothing to do with modern and everything to to with transverse V engines
Do you have to recalibrate the throtle body?
I have a sound and the motor light pop on the dashboard
Great video and very helpful. Gould you write here also a cylinders order in mazda cx 9 v6 3,7 l, because i have cylinder #2 misfire. I'm pretty shure that i've to change an ignition coil, but i'm not shure which one is it. I've found new different opinions about that in the internet. Is the 2nd one rear in the middle?
I am late by a year, but rear middle yeah. Pretty sure you figured it out by now 😁
Okay so I did all of this without watching this video but I have a question. I ended up with an extra bolt that is the same as the bolts holding down the spark plug coil 8mm bolt except it is half as long. Any ideas where I took it out of?
My only issue was a wire and plug not mentioned on the intake which killed me as I ripped the wire right out of the plug while shifting the intake to get to the last hose.
Is the process for a 2009 Mazda6 V6 the same?
Do you have to replace the intake gaskets. Is it one set or 2
What’s the spark plug gap supposed to be. Just to be sure
Can I used this model of spark plugs on my 2008 Mazda CX-7?
Assuming no broken or cracked connectors during this process, what's the ballpark for how long this will take someone who is moderately handy?
The first model year for the CX-9 is 2007. It had a 3.5L engine during that first year.
Thanks for the detailed video, I did all of that and the engine starts smoke white alot !!!!!
Your the best period I wish you were in ct I'll make you my personal favorite mechanic
Can someone tell me how do you click back in place those electric pins by the ignition coils,im the only one i guess who strugles badly with them,its just not going back in place,I apply all the force but it wont snap
Where do we get gaskets?
i have a Mazda 6 v6 3.7 L ,is it the same since it looks like the same engine my Mazda 6 v6 is a 2009??? thank you kindly
Gaskets what kind to use?
Well Done. Very clear explanation. i even would like to do it myself, but scared
Great Video, can you please link the gaskets for manifold and for the throttle body?
Also, should we always change the gaskets?
this is a great video, thanks. I hate to pay anyone to do something I know I can do myself, just need some concise instruction .