2012-2016 2.0L Subaru Impreza - Spark Plugs Replacement

[@eskimo2k]

Straight forward, to the point, clearly explains the job. Well done. Just ordered my plugs from Rockauto.

[@dougmildram3032]

Ditto on your excellent video time management and explaining everything, mostly as you could. I was an old school (1970-1985 era) mechanic...here's two extra/optional? tips. 1) After removing coil, if you can, give a quick shot of compressed air (or blow hard/fast thru a 3/8" hose) around each plug before removing...to blow out (remove) possible crap/dirt which CAN be a very? bad thing. Less important tip, but may expose more oil in this case. 2) For ease of INSTALLING ( insert+start new plug threads) on any car withOUT using the plug-sized socket to hold it at first: (the hard part: FINDING such an old naked boot,, then) shove an old rubber plug-wire-boot (strip off an old-style single plug wire == old plug boot). That has/gives enough friction for your thumb+finger to best start the plug threads, for a turn or so, then pull the boot off and use the socket on an already-threaded plug. BACK TO THIS PROJECT: Horiz space is atill tight down in coil-land, had to use various tricks to fit tools eg short-flex-10mm socket and just-right extensions for plug/14mm socket. I just got into its-time-to-change-orig-plugs on my GF's 2015 Impreza 2.0 no turbo, 130k mi which runs ok, at first I couldn't even FIND coils,wires,etc..., so now I know how to expose them. The extras on this era (2015-ish) are different enough from my old 1999 Forester which I managed to do head gaskets on! BACK TO THIS PROJ again: Bad discovery: Oil on all 4 in the plug tubes., but just a little (big tiny :) blast of oil when I blew air into plug hole. I wasn't ready to R+R cam-covers (valve covers) and oil seals that day. Hoping the re-installed-with-orig-oilseals doesn't start dripping now that I've swapped plugs. It's always something to fret.. thx for listening, be prepared.

[@YOUCANIC]

Thanks for sharing your tips! It's awesome to see experienced mechanics like you engaging with our content. Yes, the layout of the 2015 Impreza is quite different from the older models. For any more queries or detailed guides, feel free to visit YOUCANIC [www.youcanic.com]. Discover our Full System Scanner and other tools that can help you diagnose like a pro[www.youcanic.com/scanner]. If you need further assistance, don't hesitate to use our platform to ask questions. At YOUCANIC, we're dedicated to making car repairs accessible for everyone.

[@dougmildram3032]

More unknown/invisible-concerns may become exposed by removing coils: My first comment above was made before I dove into this well-running 2015 Impreza 2.0L non turbo (bought new by my GF thus we know it never overheated and never leaked anything like oil,antifreeze) and never burned or lost any oil, changed every 6k or so...now at 135,000 miles. For preventive reasons, I felt it was time to replace spark plugs, so with no known problems, spark plugs were the only new parts I had today. To my surprise, all four plugs+boots (they live inside an insert/tube within the valve-cover aka cam-cover) and the coils' boots were ~equally wet with some oil. Maybe a teaspoon or so in total, used a few feet of paper towel. I blew each exposed plug+hole with 100psi of air, so a small mist of oil came flying out. (No dirt like I warned in my prior comment, this is a sealed tube!) So obviously (if perfection was a goal for today) I SHOULD have ordered cam-cover-gaskets and oil seals, but instead I went ahead with just new plugs...no visible seals looked bad enough to believe this would be a mistake, even though every time you touch something like the outer seals, it could change.... To do that job right, see youtube MrSubaru1387 "Project 2015 Outback: Spark Plugs & Cam Cover Gasket Replacement" 33min video. In my case, I just wiped off all the oil I could with a curled-up paper towel corner, even halfway-in-drying-out each coil boot hole which is normally covering/sealing the plug. (BTW, I found no reason to detach the connector/wire from each coil, which looks a bit challenging. Since the boots are flexible I was able to just angle-and-push/pull them aside, then remove spark plug). After cleaning the tube+boot, and being extra careful watching and pushing the coil's outer boot seal back nice and flat with the just-one bolt tightening each coil down, I got it all back together and it ran great as usual and after a short test drive, I see no oil leaks, so hopefully the continued leak within the cam-covers...leaking into the should-be-dry plug tubes at hopefully slow-leak-rate...will be no problem (she lives 2 hrs from me, so I'll see in a month). Thanks again, best of luck.

[@nastysoda9212]

Thanks! ordered new plugs today and will get this done when they arrive.

[@tmk87154]

thank you for the video. garage quoted me 370 plus tax. I can't afford that also considering decent plugs are ranging from 15-30 each at local store. I think I'll use this video and take my chances to do it myself.

[@ghentsgames6371]

Lucky you. They wanted $800 from me

[@KarlaFlores-s2l]

Thank you so much for this video. Help me a lot!!!

[@yosefyitz]

Great and clear instructions. I did it without removing the ignition coil cables.

[@YOUCANIC]

Thank you for your valuable feedback! We're thrilled to hear that our instructions were clear and helpful. Our ultimate goal is to support you in your car repairs, equipping you with essential knowledge and the right tools. Speaking of tools, diagnosing a modern car like an expert mechanic requires a good professional diagnostic scanner. That's why we developed the YOUCANIC Full System Scanner. Put the power of car diagnostics back in your hands. Find out more at www.youcanic.com/scanner. Furthermore, access Factory Repair Manuals and Torque Specs at www.youcanic.com/manuals. Equip yourself with everything you need to accomplish the job right!

[@limbermaradiaga7516]

Hey one question how do i now which spark plugs and ignition coil I need for my 2013 Subaru Impreza premium? I’m new so

[@tinomirle7722]

Thanks for Information,good job,grettings from germany✌️

[@YOUCANIC]

Thanks for your comment! We at Youcanic are committed to empowering car owners like you to feel confident and save money on car maintenance. Don't hesitate to explore our handy guides, free resources, and powerful YOUCANIC scanner on www.youcanic.com. We've even got factory repair manuals for more in-depth needs. Our goal is to assist you throughout your car ownership journey, so feel free to reach out if you have any questions. Trust us, we've got your back!

[@Matthew-Thill]

Appreciate you!

[@kylea7714]

How would you know if you needed to change the spark plugs or ignition cables or both?

[@YOUCANIC]

Thanks for your query! If your vehicle's performance is dropping, or it's misfiring, stalling or having trouble starting, these may indicate that you need to change your spark plugs or ignition cables. At Youcanic, we aim to empower car owners and make car maintenance less of a hassle. We provide helpful guides and resources, like our YOUCANIC scanner, as well as factory repair manuals. Whether you are novice or expert, we're geared to assist. Check us out at www.youcanic.com and feel free to connect with us for any additional questions. Happy safe driving!

[@jamesandrews1130]

Thank you.

[@YOUCANIC]

Thank you for your positive feedback! Our goal here is indeed to guide you through your car repair procedures. These days, properly diagnosing modern cars like a professional mechanic requires a good diagnostic scanner. That's why we developed the YOUCANIC Full System Scanner, it's designed to put the power back into the hands of car owners. You can learn more about it on our website, [youcanic.com/scanner](www.youcanic.com/scanner). Moreover, to ensure you complete your repairs correctly, you'll need access to Factory Repair Manuals and Torque Specs. We provide these resources for a nominal fee at [youcanic.com/manuals](www.youcanic.com/manuals). This way, you're equipped with all the right tools and information to fix your car like a pro!

[@mellopez3834]

How do I remove the back spark plug on the driver side? It was very difficult to remove

[@KarinaSM-zb6pn]

Hi! Would the it be the same process to change the spark plugs on a 2017 Impreza Sport or is the engine a little different? I can't find a single video on how to change the spark plugs for the next generation of Impreza.

[@YOUCANIC]

Thanks for your query! The process may depend on the exact model of your Impreza Sport. We're committed to helping car owners like you at YOUCANIC. For detailed steps, feel free to explore our guides or use our YOUCANIC scanner for additional support at www.youcanic.com. We also have factory repair manuals if you need in-depth guidance. We're here to empower you on your car maintenance journey!

[@nancynancynancynancynancynancy]

hey! I want to replace only the Cylinder 3 spark plug and ignition coil, but how do I know which one is #3?

[@YOUCANIC]

Thanks for your comment! To identify which one is Cylinder 3, this typically depends on the make and model of your vehicle. To get specific instructions for your car, head to www.youcanic.com, where we have detailed guides and resources. At Youcanic, we're committed to helping you feel confident with car maintenance. Our tools, like the YOUCANIC scanner and factory repair manuals, are designed to make things less complicated and save you money. Reach out on our site if you need further assistance. We're here to support your car ownership journey!

[@Denis.R.185]

Thank you! What is the electrical compound for the connection of the spark plugs?

[@ghentsgames6371]

Just dielectric grease from any parts store

[@arvindonner8976]

Do you need to gap the plugs? It doesn't look like you do.

[@YOUCANIC]

Regarding your question about gapping plugs, it can sometimes be necessary. Factors like your vehicle's make, model, and the type of spark plug can all play a part. For specific queries or guidance, feel free to ask on www.youcanic.com. At YOUCANIC, we also present our comprehensive Full System Scanner, aiding you with car diagnosis just like a professional mechanic. Visit www.youcanic.com/scanner and explore more about it. In case of further doubts, we're always here to help!

[@arvindonner8976]

@@YOUCANIC Thanks for the quick response. It's a 2015 Impreza Sport. I'll check out your website.

[@dougmildram3032]

2015 2.0L non turbo owners manual says use NGK SILZKAR7B11 ...without showing plug gap in Specifications. Buy the real deal: NGK set of 4 == qty 4 Laser Iridium Premium (stock#) 93482 and when you get those, each plug box will say both: 93482 + SILZKAR7B11. They come gapped at around .040 so you should NOT have to adjust gap.

[@arvindonner8976]

@@dougmildram3032 Thanks. I did get the Iridium's. Car sounds great.

[@baims8367]

That’s what she said Slide it in there nice and ez 😂o man that’s what they all say

[@jackkelley4051]

Went to autozone three times and they gave me the wrong size EVERY TIME, once the spark plug socket rubber cane off inside the engine on the old spark plug, so can someone who is NOT a complete dodo tell me: is the size REALLY a 14mm for my 2012 subaru impreza sport limited spark plugs and what is the freaking spark plug size😭😭 im begging here

[@Fishin4funout4trout]

Wow. That is so rediculous that subaru made it so difficult and time consuming just to get to the damned spark plugs for replacement

[@BXtr3m3ty]

all boxer engines are like that.

[@phillipcastro2394]

Don't seem to hard as far as spark plugs go

[@BXtr3m3ty]

@@phillipcastro2394 its not. its actually pretty easy. this guy is dramatic lol