How to Replace Spark Plugs Mazda CX9 3.7L 2007-2012
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- Опубликовано: 22 авг 2024
- Parts lists and sponsors in description:
This video will walk you through how to replace the spark plugs on a 2007-2012 Mazda CX9 3.7L V6. The video shows you all the parts you need to remove and install to get the upper intake out of the way to get to the back 3 plugs. As always our videos are in first person and rough cut because we make videos to help people and not because we are film makers. If you have any questions about the content please drop them in the comment field and we will answer when we can. Thanks for watching.
Spark Plug options:
Motorcraft Sp-411 Iridium plug(came out of car): amzn.to/3CNji4m
Bosch double Iridium plug(used in video): amzn.to/3XwSmiX
NGK Iridium spark plug set: amzn.to/3r1IXns
Autolite Double platinum: amzn.to/3NPgytz
Autolite Iridium Plugs: amzn.to/440V5nm
E3 diamond fire(cheaper option): amzn.to/46s8eas
Other parts that may be needed:
A- premium spark plug and coil set: amzn.to/440f2ux
Motorcraft spark plug and MAS coil set: amzn.to/3XzOJZO
1 coil replacement Dr.Cax: amzn.to/3Xr8Ysy
ENA coil set only: amzn.to/46sUUmv
Replacement intake Gaskets, generic: amzn.to/3JykufQ
Fel-Pro intake gaskets: amzn.to/433jyam
Spark Plug tools:
Ares 3 piece 5/8" socket set: amzn.to/3XvIs1i
Gap tool: amzn.to/440g6i1
Anti-seize: amzn.to/3NQ2sbu
Die-electric boot grease: amzn.to/3CNmkFM
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Shop towels: amzn.to/3nRfoDq
Car Care Products, Shine Armor:
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Авто/Мото
Thank you bro great job and in the rain always makes it a little more trialing 🙏🙏🙏🙏
Thanks for the compliment, glad the video was able to help you.
Thank you. I wasn't sure if I wanted to do this myself since that upper intake manifold needs to come off. After getting quotes from a couple of shops, I've changed my mind and wanted to see how hard it is to take it off. Did you change that intake gasket or just reused the old one?
In my case we reused them. They should be inspected for rips, tears and compression before reusing. If they don't seat properly you will get poor fuel economy from a leaking intake. If you are not sure what to look for, i would order a set and replace them. I should have a link to them in the description, if that helps.
Great video! Thanks for the spark plug recommendations too!
So I bought the NGK LTR6IX for my '08, however my mechanic is saying that the thread is too long to be installed in my car. It might hit the pistons is what my mechanic is saying. Is that really the case? My previous one is also the Motorcraft SP-411 and I noticed that NGK LTR6IX really is a bit longer than my current one.
All the parts were what was in the recommended equipment for the car. So it should work but it is amazon and things are not always right. When you say it is longer is it like 1 thread pitch longer or like 1/2" longer. Everyones version of a little bit is different. If its like 1/16" longer it will fit. If its much more i would not trust it to clear the pistons.
I also just checked a few websites and autozone, ebay, summit, O'Reilly and Amazon are all saying ngk ltr6ix-11 6509 is the plug for that year cx-9. Hopefully that's enough info to help.
@@SKPcars hello again! So after a heavy debate with my mechanic, I was still able to convince him to install the NGKs. Reason is because when I checked his recommended plugs (Motorcraft SP-530), the threads of those were about the same size or a bit longer than the NGKs. It seems he's just lying to me from the start and he just wants to sell me his overly expensive plugs, more expensive than if I purchase that same plugs somewhere else lol
Anyway, my car runs better now, way better than before the plugs were replaced. Thanks again for the informative video!
@@thbryncrz yeah unfortunately a chunk of how a shop makes money is on parts mark up. It is not uncommon for them to give you bad info to sell more stuff. Most spark plug jobs are only like 1 hour book rate. This is a harder job so the rate should have been enough they wouldn't pull that. I would try to find a shop that won't do that kind of thing. Sorry that happened but it all worked out in the end and now you know they aren't a straight forward shop.
Great video! Did you put new intake manifold gaskets in?
No there is no reason to if the gaskets aren't broken or messed up. They are designed to be taken off and put back on. You just have to be careful with them.
@@SKPcars Thanks! Great to know.
Thank you is it exactly the same with Mazda 6 v6 2009.3,7l since it's the same engine ....i know noob question but 😅???
It should be, yes. Same engine, same spark plugs should be the same job. There may be some intake differences or sensor locations that don't match up though.
I about to attempt this my first time around and want to be prepared as possible so i have a question do i have to replace the coils too? I have a engine code about my second cylinder so i just want to do them all but do i need new coils for the spark plugs or im good?
Also if you can How can I find the torque values for the screws?
You are not required to change the coils. Depending on what the code is for cylinder 2, you may want to replace the coil on that one. If you are not sure which cylinder is the #2 cylinder, look up the motor size cylinder order. There are a ton of drawings online. I am not 100% sure, but most 6 cylinders are odds in the back and evens up front. Any repair manual will give you torque values for important parts but not for everything. Spark plugs have low torque. Generally under 20 lbs. Most people would call that snug. Anything into plastic is going to be under 10 lbs because plastic breaks. That's normally called tighten to touch or light snug. The last thing you want to do it crack your intake over tightening it. Hopefully, this helps if you have any questions, let me know.
Did you replace the intake manifold gasket, or is the old one re-useable?
I reused them, but if they are cracked, compressed oddly or damaged, you should replace them.
no anti-seize?
You generally shouldn't have to use anti-seize on spark plugs. Unless you have a problem with plugs getting frozen in place. Plugs are designed to be removed.
Hey man got a question if you have a sec
Ask away, i am on and off this page throughout the day. Or you can email me at sanitykiller289@gmail.com if it is something more indepth.