2018 Jeep Grand Cherokee Spark Plug 3.6L Pentastar Replacement How-To
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- Опубликовано: 4 окт 2024
- This video will show you how to replace the spark plugs and upper intake gaskets on the 3.6L Pentastar engine Jeep Grand Cherokee vehicles. This was done on a 2018 but parts used in this video will cover the 2011-2018 3.6L Pentastar engine. This procedure will also work for various years and models of Dodge, Jeep, and Chrysler vehicles that used the 3.6L Pentastar engine includeing the Journey, 300, Charger, Durango, Wrangler, Gladiator, Town & Country van, Challenger, Pacifica, Voyager, Ram 1500, and Ram Promaster van. Spark plugs and intake gaskets were purchased from Amazon and I have provided a link to those parts below.
NGK Spark Plugs: amzn.to/3nLY0ww
Felpro Intake Gasket Set: amzn.to/3OO6IGt
Dielectric Grease: amzn.to/3yjfJk1 
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Cannot thank you enough for taking the time to go step by step, showing clear camera angles. Saved me hundreds, maybe thousands changing my plugs and coils!
You have the best “How To’s” on here man, thanks for taking the time to make them!
Awesome tutorial, and many thanks. I had a bad misfire in cylinder 2, and car would barley run. Shop quoted me like $800 for the job because of the work, but I found this video and just put it on my iPad in the engine bay and followed steps by step and did it myself with no mechanic experience. Took me about 4.5 hours with breaks in between, but was worth saving the money. Replaced all 6 plugs and coils. Seems to be running fine now, had original OEM plugs, and they were in really rough shape for 110k miles. Still had the engine light on after, but wasn’t blinking like before. Drove it to a local shop and still said misfire, but he cleared the codes, and it hasn’t come back on so far.
Glad I was able to help you out. Thanks for the positive feedback.
Same!
Thank you so much for sharing this video. After I saw all your steps, I took the park plugs and the coils back to autozone. I hired a mechanic to do this for me and it cost us about $1300 I was so freaking mad. New cars are not like the old days, meaning easy to change spark plugs and headlamps.
Nice job, right to the point. no foolish comedy or heavy metal music in the background. Very helpful, thanks for taking the time to do it.
This is an insane amount of work just to change spark plugs yikes. Thank you for the video though, very informative.
I know seriously
Having just completed it I would have to say yes this is ridiculous and the old adage remains every engineer building a car should have to service every item. Try changing the lightbulbs in this car. There’s a reason the dealership charges $300.
@@hitherefrompointswest4805 If the low beam bulb is easier than changing the spark plugs I should be able to do the spark plugs😂 I just changed the driver's side low beam light. Not looking forward to doing the passengers side since I've read its harder😆😆😆
@Hi there From points west As an engineer, I kind of understand why these things happen. Still, I curse them when I encounter stuff like this. Engineers don't get to do everything they want. Just finished this job. Sucked. But the battery placement in these Jeeps really pissed me off.
@@hitherefrompointswest4805I ended up paying for the headlight bulb replacement after trying to do it on my own… pain in the ass
You just saved me a ton of cash from having the dealer do it. Took me about 3½ hours because this was my first time changing spark plugs on this vehicle. If I ever have to donl it again it'll be much quicker. Thanks again!!
Wow! How I long for the good old days. Took 20 minutes at most to change the plugs. This is crazy.
I am so grateful that I've finally come across your video. Other videos i came across weren't recorded very well, and they skipped important parts that made me question if i should even try myself. Your video is recorded so perfectly, and your work is so on point that it gives me the confidence to do this job for the very first time. I have a 2018 Dodge Durango SXT, and it's the same engine as the 2018 Jeep in your video. I'm in NYC, and before i came across these videos, the mechanic's was giving me an estimated price of 600 to $700 for this type of work, so thank you and you earned a new subscriber
Great video and awesome camera work. Dealership quoted about $750 to do the plugs alone a few months back so I decided to do it myself whenever the CE light came on. Me and my dad followed the video today and knocked it out in about 3 hours of working time. Took our time and went slow to make sure we did it correctly but was an enjoyable afternoon activity with my old man. The 10mm bolt on the side mount that was missing in this video was present in mine. Not hard to get to, but almost if not totally impossible to get back on. Not worth the stress and headache to try IMO for anyone else who encounters it. For the 8mm in the back of the intake manifold I used a stubby 1/4” drive and got it easily, no problem. Total costs in parts for the plugs and gaskets (which you should definitely do since you’re already there) was about $100.
Great video. Much appreciated.
Great video! I've owned several GCs, currently a WK2 3.6. I really miss the simplicity of older Jeep 4.0s!
Followed the video and did this yesterday. There were a couple of small differences between the 2018 in the video and my 2017. Mine had the missing 10mm on the passenger side of the engine, but it was impossible to get it back in. The dealer must have a special tool to do this. Thanks again for a great video. Brakes are next.
Quick tip on starting the plugs. Use an 8-12 inch piece of 3/8 fuel hose instead of the plug socket to start them. Then use a regular 5/8 deep well socket to tighten. You can't crossthread the plug and your socket won't get stuck on the plug.
Just got mine done thanks to you. Even had to replace a evap hose that cracked. Thank you for the detail instructions. The family thanks you too..
How much was the the hose and how do you ask for it
Great video. I did this job 3 years ago on my 13 Grand Cherokee and no videos were available back then. I now have an 18 Grand Cherokee that I'm going to do. I think I took my cowl off last time there at the top of firewall. Not a difficult job but takes some time. Thanks again.
Excellent video sir! Thank you very much. I just finished up the job, following along with you the entire way. I also replaced the PCV valve since it was easily accessible during this job and my wife’s Jeep was due for it anyway.
Great video!! I have changed spark plugs on a 5.7 hemi and I thought that was complicated. Going to watch this a couple more times and then give it a try. The stealer wants a fortune to do this.
Your video helped me tremendously. This job is a pain just to get to the spark plugs. Thank you!
just did my plugs and coils using this video. all good, no issues. thank you!
Just finished up on my 2018 JGC 93000 miles, don't know what kind of maintenance was done prior to me getting it..changed plugs AND coils and the manifold gaskets/seals..also thoroughly cleaned the EGR valve which was gunked up and very dirty...I also took the opportunity to change the PCV valve knowing that the intake manifold had to be removed anyways...after putting everything back together I realized I should have gotten the PCV hose and changed that too...getting one this week and replacing the old one...GDI engines are notorious for clogging up lines and valves with oil....next project...transmission fluid and differential fluid change...hopefully next weekend...A big thank you to Blue Collar Garage for walking me through the steps for all of it...saving me at least 2G's if not more...Thank you....
This was great. Thanks! Easily the worst spark plug job I've ever done. Vapor cannister purge harness broke from dry rot. If that happens to anyone else, probably will only find it at dealership or Mopar direct. I was able to patch it. Cut off the dry rotted end of the hose and remove. Clean the connector. 0.5" ID heater hose is a good fit with the barbed connector. Used high temp tape lapped over the heater hose joint with the existing hose for good measure. All done, no CEL. Might not bother ordering part ~$50.
This is a great video! 5 stars! I watched several other videos that were so long that it scared me to attempt DIY, but only issue I had was not having female torx socket and so had to get that picked up to complete job. Not as painfully long as I thought. I have somewhat normal size hands, so some of tight spots I could see giving some an issue, but thankfully video was very precise and left nothing to guess-timate! Thanks again!
Excellent video! Clear and thorough. Still don't think I'm going to try it though!
The zip tie is a great idea!
When i heard all this needed to be done just to replace plugs, i was in complete disbelief. Even watching it, i still am. Great video. Might be worth picking up a small Bluetooth mic if one exists. Camera work is great but the audio is kinda low. From what some other big YT guys have suggested, most viewers will be more forgiving over image quality then they will for audio. I still can’t believe whats involved just to get some new plugs in. Thanks for this.
Going to try mine this summer with this great video!
My 2017 was a bit different and more difficult to get to the 2 back ones. There is very little room to get the spark plugs in and out. This video was very helpful tho!
Thanks a lot for the detailed video! Saved my family money! Appreciate it
Perfect tutorial! Grateful for you. Saved me a lot of money and time!
Thank you so much. U saved me a ton of money. U made this video so detailed and clear. I appreciate it.
Hey brother, you don't want to use that old-style gapping tool for iridium spark plugs. You can damage the tip while measuring the gap. When you slide the tool through it can scrape the iridium. Try using a Lisle 67800 or 67900 tool from any parts store. You can adjust the gap by the back of the electrode arm. The measuring part of the tool is rounded. Less chance of damaging the iridium. Once you use the tool it will make more sense. I didn't get it at first but it avoided me from causing any issues in the future. Good luck and love the amount of time you spent on the small details.
Great video thank you for posting it! I would highly recommend to disconnect each coil from the wire harness! I had to use some force to get the coil free and when it popped off momentum broke the coil connector on the harness. The black wire also broke off with no easy way to fix it, other than a whole new harness! Was sick to my stomach! Well, put in the new plugs and reassembled everything thinking the worst on start up. Luckily, the engine started fine no missing or check engine light, or other malfunction indicator. Drove about 20 miles and seems to be ok. I'm not sure what the 'black' wire is for (ground maybe?) Had it been either of the other two wires a tow and a very expensive repair bill would have been the most likely outcome.
Gotta say previous model design is much less work on the same engine. Even though it's still annoying to remove intake every time you need to change spark plugs, oil temp sensor. Oil pressure sensor and that leaking oil cooler/filter assembly. I have been inside there quite a few times on a single vehicle.
Great video like working on my vehicles and I just got a grand Cherokee limited edition
Thank you for this video !!
A Very Excellent Job and well explained !
Really appreciate your simple videos. I think you probably have some more knowledge though then you’re leading on and I wouldn’t mind hearing some of the reasons why you chose certain lubricants versus others, etc. Also, do you know anyone maybe yourself who might have some experience with why I’m having so much trouble with my 2017 V6 with respect to keep fobs and starting a regularly spent a lot of time and money trying to fix this and still the truck has a mind of its own.
What kind of issues are you having with your 2017?
I’m doing this tomorrow and I don’t know what I got myself into 😮
I appreciate this video so much. Just a heads up you really may get a service engine light after and auto stop/start unavailable message. Double check your work if and if your sure of it the lights will clear themselves. Auto cleared first service light the next day. Code P1404 EGR. Probably something to do with disconnecting it
Exelent video
I have the same motor, looks like 3 plugs are going to get changed, at least! 🤣
😂😂 Hadn't thought of that, but after watching half the video I'm starting to feel the same way.
Why just three? If you're going to have a shop change the three hard ones they are going to have to remove the intake and will probably charge you nearly as much as doing all six, minus the cost of each plug.
Great video... awesome 👍👍.
Excellent video
Great vid
Changing the headlight bulbs requires hand/wrist/forearm achrobatics and/or airbox removal. Why would I think a sparkplug change be any easier in this thing?
Ok, so at least the thermostat housing, the waterpump, and the alternator are easy. Big wup.😂
Great Job
Do you know how to remove the plastic harness in between the valve cover and fuel rail? Do you need to back off plastic tabs, or nuts/bolts?
How often should plugs be replaced for this Grand Cherokee?
I usually every 60-80k miles with iridium plugs.
Great video. My wife’s jeep got a cylinder4 miss fire went a head and replaced all 6 spark plugs got rid of that check engine light.
But now I got a code p0404 permanent code for the Egr what should I do should I replace it or wait and see if it clears also got at service start stop system warning that de activates the start stop system and the yellow light with the warning stays on. Any one has ran in to this issues before..
How many miles is on yours? Have you tried cleaning the egr valve? It’s probably clogged with carbon build up.
Great video thank you
Great tutorial, thank you! Do you know if the foam engine pad is required? I forgot about til after getting everything else back together.
It won’t hurt anything if you leave it off. It’s only there for noise reduction.
Shouldn't we disconnect the neg cables off the batteries (aux and main) before doing something like this?
It’s always good practice to disconnect the power before a job like this.
Really appreciate the video.
Had a misfire In cylinder 3 and your steps were perfect. However, I’m fairly certain I did something wrong when reassembling everything because when I took the car for a test drive and got a hot engine warning after about 20 minutes. After I was able to get it back to the house, all the coolant was gone. What did I mess up?
Did you refill coolant and everything ok after?
Did you ever figure out what was happening?
Did you check PCV valve ?
Completely unrelated to changing the plugs
Hello so I need to know which cylinder is number 2 ? Any help please !!
Cylinder 2 will be on the driver side closest to the front of the vehicle.
Where is the cylinder number 5 located ????
It will be all the way in the back passenger side closet to the firewall.
Great video.. how hard is it to change injector one?
Great video, but a LOT of work just to change 6 spark plugs. If I ever do this job, I'd probably replace the 3 coil packs on the passenger side with new ones - did this on my wife's Edge with the 3.5L on the rear of the motor (it's oriented E-W) - one of them was bad. Anyway, we are on our 3rd 300 with the Pentastar engine, & our first Grand Cherokee. What is the recommended mileage for replacing the plugs?
100,000
I made an attempt at this, reassembled, drove the car around the block and the check engine light came on. Any idea why?
Did you make sure everything was plugged in all the way? Does it seem to run fine? Your best bet will be to scan it for codes that we you can pinpoint the problem. If you don’t have a scanner just swing by your local auto parts store they will scan it for free.
Yeah the car runs smoothly. I’ll do that. Thank you for the tip
@@anthonygreen7263 no problem keep me posted.
after driving around today the Check Engine light turned off on its own.
My coil pack came apart in 2 pieces does that mean it's shot? Car idles rough but no codes
Will this walkthrough work for 2017 GC Limited? I’m guessing the same engine?
Yeah should be the same.
Have you done it? I'm planning on doing mine soon😅 I have a lot of faith in myself
Great video. Doing it again, would you disconnect the egr hose instead of disassembling the egr housing or would that end up being more work?
That would end up being more work because it’s equipped with an egr cooler so you’d have to drain the cooling system as well before disconnecting the hose.
My EGR valve doesn’t wanna get back on the studs. Should I try and readjust the intake?
Yeah try that first.
Hi guys ✌ for some reason I found motor oil inside the air intake 😒 Any advice.
Are you taking about the air filter housing or intake manifold?
Hello, the spark plugs you are using are with gap 0.044 according to the specs I saw on the internet for the exact number you are using, how did you make them 0.04. I have the same 2018 Jeep, and when I search for spark plugs by car model, I only get 0.04 gap options. However, I already have the following spark plugs NGK 95710(DILZKR7B11GS), will they fit this engine, can I use them? Their gap spacing is 0.044, according the specs and they don't come up when I search for spark plugs by car model!? And another thing I noticed, in the service manul for JGC WK2 2014-2017, the recomended gap is 0.043, but when I search for spark plug for JGC WK2 2018 3,6 v6, all the spark plugs that come out are with gap 0.04(no matter the brand). Please help how to choose the right spark plug and if the ones I have will work? I am confused!
The ngk 95710 that you already have will not fit your Jeep those plugs are for a Honda or Acura. What year is your Jeep grand Cherokee?
@@BLUECOLLARGARAGE My JGC is 2018, 3,6v6, vin: 1C4RJFBG3JC180804. Can you tel me wich part numbers of NGK i have to buy for perfekt fitment? Thank you!
@@ФилипФилипов-ю7д you have three different ngk plugs to choose from. good ngk 93175 iridium ix, better ngk 7751 laser iridium, best ngk 96358 ruthenium. All these plugs come gapped at 0.044” but ngk wants you to gap them at 0.040” for your 2018 Jeep grand Cherokee. These are the ones I installed on the 2018 in this video www.amazon.com/dp/B07PLBJGMD/ref=cm_sw_r_as_gl_api_gl_i_2N1CFSAH65M8QTWDGBB7?linkCode=ml2&tag=bluecollargar-20
@@BLUECOLLARGARAGE Hmm...in this video you installed ngk 93175 iridium ix, and the link in this answer is for ngk 7751 laser iridium! But it doesn't matter, the things with ngk are already clear for me, thenks! And what do you say for the CHAMPION CCH9417 RER8ZWYPB4, which must be the same with which the Jeep 2018 leaves the factory? I don't understand why their gap is 0.042", and OE-Recommended Gap: 0.043", according rockauto?! And I don't understand why the gap of the ngk is 0.044", and OE-Recommended Gap: 0.040", according rockauto?! How so the recommended gaps are different for the same car?! And how do you change/correct your gap, this is not in the video?
When should you change the spark plugs on the jeep
Depends on the spark plug but I usually go every 60-70k miles if you use the iridium spark plugs they say those should last about 100k.
@@BLUECOLLARGARAGE awsome thank you for the video very informative
The part that you had to remove the studs to get off, what is the name of that part?
Thanks in advance
Egr valave
Minute 15:52 what is the name of the part that is right next to the spark plug You are replacing, looks like coil atached with a screw and has a sensor conection plug?? ... In My Jeep is so much oil arround it. Thanks for your help 🙏
That’s your vvt solenoid (variable valve timing)
Thank you!!
What is the metal thing you removed the studs from called
That’s part of the egr valve.
Is the torque tightening specs? 13 or 20 for a 2016 ?
13, the 20 ft lbs is for 2010 and earlier.
I got an a check Air suspension light on my dash after changing my spark plugs can you help me?
I'm not sure what mechanic slept with the engineer's wife but he needs to say sorry to everyone
😂
Hi my friend, how many N.M for each spark plug?
What is the Mopar # for that engine foam piece between the intake and right cylinder/valve cover? Thank you.
Mopar 04593955AA
@@BLUECOLLARGARAGE It's actually a different Mopar #. But I am writing this to thank you for this video. I must've watched this video about 20-30 times from start to finish, before taking off the upper/lower intakes, to replace the oil filter/cooler housing to the Dorman on my 2017 Jeep WK2 Overland. I replaced the spark plugs as well. Lot's of blood/sweat/tears during this project which took me approximately 18 straight hours. This video was on point, and gave me the confidence and ability to accomplish both things. Thanks again, and I've already started watching your video on the transmission pan/filter/fluid change. Please keep posting videos of all work done on Grand Cherokee (WK2).
@15:59 you indicate to tighten to 13 ft lbs. Is that spec or does that take the anti-seize into consideration? I'm used to going up to 20% lower than OEM spec when using anti-seize. Excellent video!
13 ft lbs is the recommended torque if you use just a little anti-seize you will have no issues at 13 ft lbs
@@BLUECOLLARGARAGE thank you! Already did the spark plug replacement and it was so easy following your video! I was able to demo and get the spark plugs and intake gaskets replaced in an hour and a half. You highlighting the location of the rear fasteners and using the E5 tool to take out the studs saved hours of time. Fantastic video!!!
what is it called the sensor next to that first coil? can someone plz tell me, mine has a some oil on that
What an absolute mess holy shit, this might be the only thing I have the dealer do for me 😅😅
at 17:46 there's a golden looking hole by pcv valve.. like the ones from the spark plugs.. what's its purpose?.. I didn't see you disconnect or unscrew anything from there. Mine is spewing out tiny droplets of oil when revving engine.. do you know why?
Those are just used to clip in the plastic wire loom clips it shouldn’t be leaking any oil. Is it leaking a lot?
@BLUE COLLAR GARAGE not really.. tiny droplets while revving engine and on park.. who knows how much while on drive. Only reason I notice is because I was looking at something down there and notice that the transmission pan had oil around.. but it wasn't red.. so I figure it's gotta be from up there.. it's my daily driver so it accumulated. Vehicle drives fine, no warning lights.. so yeah
@@comowhat2744 because if you look at 17:55 you’ll see me remove that plastic wire loom clip for the other side not sure why they put them on the other side. But I would worry to much about it just keep an eye on it and make sure it doesn’t get any worse.
Do you know the firing order for this engine? I would really appreciate it if you could tell me what it is . Thanks
Should be cylinder #1 is the passenger front, cylinder #2 driver side front, cylinder #3 passenger side middle, cylinder #4 driver side middle, cylinder #5 passenger rear closest to the fire wall, and cylinder #6 driver side rear closest to the fire wall.
I noticed on 12:50 the engine has like oil residue, is something leaking or this is normal?
No it’s not normal I think it’s just oil residue from whoever did the last few oil changes on it must have spilled at the oil oil fill cap.
When to change the sparkle plugs?
Depends on the plugs the ones used on these are usually iridium’s and they last about 75k or so.
@@BLUECOLLARGARAGE
I put on my jeep 100000 Km ~ 62137.119 Miles never changed it still the engine is responsive.
@@ibrahimalshmrani8216 yeah you should be fine for awhile. You can also double check your owners manual it will tell you the maintenance intervals on when to replace them.
Do you know the name/part number of the hose you remove at 3:18? My wk2 seems to have a bit of oil residue around it since last oil change.
That would be your pcv valve hose and the part number is mopar 68210346AD also may want to check your pcv valve while your at it to make sure it’s not clogged.
@@BLUECOLLARGARAGE appreciate it! Went ahead and ordered a new hose and a new pcv. Figured i change both. Seems like a fairly simple diy!
Anyone know if this is good for the 2020?
I did this once on my 2014 Grand Cherokee 3.6l.... I hope that whoever designed this got fired. Why the fuck would you think it's smart to bury sparkplugs under an intake manifold....took me hours to do a spark plug change...then spent 10 minutes changing the plugs on my sisters civic.
I noticed that the upper rmanifold part @21:19 deosn't have any gaskets on it? does this mean you only need six gaskets for it?
Yep all you need are those six plenum intake gaskets and the intake just sets right on top.
@@BLUECOLLARGARAGE I also thought the gap for 2018 models is supposed to be 0.043" why you kept it on 40?
@@tek2313 only the original mopar/champion brand plugs are supposed to be gapped at .043 inches all the other brands like Ngk and auto lite call for the gap to be .040 inches.
@@BLUECOLLARGARAGE that’s weird I checked the NGK website and they mentioned that the gap for oem plugs is 0.044 and they told me to leave as it is?
@@tek2313 yeah that’s weird I was just going off of what Haynes says and also on the rockauto.com
I have a p2172 code after i did everything any help
Sounds like you may have a vacuum leak or forgot to plug in a sensor. Have you doubled check all your lines and wiring harness to make sure everything is plugged back in?
@@BLUECOLLARGARAGE you were right
@@BLUECOLLARGARAGE i have a P0201 code now
Every single plastic part I touched exploded. These things are ridiculous.
Yeah it’s pretty sad how many parts are made of cheap plastic anymore
what a pain in the ass. engineers should make this way easier
How many miles did you replace these on? Brand model of spark plugs? I have a 3.6 Pacifica, 5 years old with 44k miles, considering replacing plugs for peace of mind for time not necessary miles…. Thoughts?
I don't understand why jeep has made everything so insanely difficult, try replacing a starter on one of these- it's ridiculous!!!
I know the feeling. It’s because these vehicle manufacturers and the government don’t want us working on or modifying our vehicles anymore.
26:16 what is this piece called?
That’s part of your egr valve
@@BLUECOLLARGARAGE thanks
Do you have to unhook the battery before charging the spark plugs?
It’s always good practice to unhook it but it’s not required.
@@BLUECOLLARGARAGE Thanks!
This is rediculous...Accessing 6 spark plugs should not involve disassembling half an engine. When I do get rid of this Jeep - it'll be my last. They're cool when they run - but devour money when they dont.... Nice video though...
Took the words right out of my mouth.
To the mechanic it goes. Nope
I did everything but when I try to start it idk why but it starts to leaking a lot of oil and to make a sound 🥲🥲
Can you tell the exact point of where the oil is coming from and what type of noise are you hearing?
🫶🏼 THANK YOU!! Step by step instructions! You saved me so much money! Truly appreciate you making this video!
God Jeeps are stupid vehicles. On no planet should you have to remote the damn manifold to replace spark plugs.
Thank you for taking the time to make this video. Definitely helped me with my 2017 grand Cherokee limited. 🫡