Jeep Grand Cherokee 5.7L Spark Plug Replacement (WK2)
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- Опубліковано 10 лип 2024
- Learn how to replace the spark plugs on your Jeep Grand Cherokee 5.7L at home with common hand tools on my 2011 Jeep Grand Cherokee
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Disclaimer:
I am not an expert, just an average Joe who enjoys DIY'ing. Learn, Save, DIY assumes no liability for property damage or injury incurred as a result of any of the info from this video. Use this information at your own risk. Due to factors beyond the control of Learn, Save, DIY, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Learn, Save, DIY.
------------- Chapters ------------------------
00:00 Intro
00:32 Tools/Products Needed
02:21 Gapping the Spark Plugs
05:58 Remove Engine Cover
06:24 Disconnect the Coil Wiring
07:03 Remove Spark Plug Coil
08:06 Remove Spark Plugs
09:22 Installing Spark Plugs
11:35 Install Coil
12:14 Reconnect Coil Wire
12:42 Important Tip!
13:21 Access Tip Near the Air Filter
13:45 Tip for Removing Stubborn Wire Connectors
14:26 Last Check Before Starting
14:59 Outro
15:27 Another Helpful Tool - Авто та транспорт
I am getting ready to change to change the spark plugs in my 2012 Jeep Grand Cherokee. The first time they were changed, I paid a shop $200.00 to change them. With the requirement that they be changed every 24 months or 32,000 miles, I started doing my research to see how hard it would be to change them myself. I found a step by step document that spelled out the tools and the process to change them. I couldn't find any videos at the time and I jumped right in and started changing them myself following that guide and it took me about 2 hours. Each time I change, them I refresh my memory on how to change them. I am getting ready to change them for the 4th time and I found your video. Excellent video and thanks for taking the time to do it. It is a tedious and time consuming process, but it's sure is nice to save the money I would pay a shop and use it to buy something else to install on the Jeep. Thanks again for the informative video. Great job!
Thank you for your comment. I’m glad the video was helpful. Let us know how it goes! Cheers.
I changed them on my 2011 with iridium plugs and it was one of the easiest plug changes I've ever done after 30 years of being a professional mechanic
I agree. It's not too bad! Cheers
I read that iridium can burn out your coil packs .
@@panhandlejunior4607 Copper all the way!
Helpful, thank you!
I've been a professional mechanic for over 30 years and I recently did this on my jeep, and it was one of the easiest I've ever done, however unless you're just using standard copper plugs, gapping is not recommended unless you want to mess it up
so only gap if they're copper plugs?
Yes, I actually called ngk, they said don't gap iridium plugs, will just damage them and they don't even need it because they fire so well. And no loctite or anti seize of any kind.
@@mobleyMobleygapping in and of itself is not harmful. However, iridium plug tips are easy to break if you gap by using the tip for leverage (which isn’t the right way anyway). I take them at their word that the actual gap is meaningless though.
Thanks for the great info!
Glad it was helpful. Cheers!
Thank you,that’s help me alot ,good job brother
Thanks brother!
Convinced me to do it myself. Thanks man!
Nice work!!
Very helpful information
Glad it was. Cheers!
Great video; thanks for sharing
Glad it helped. Thanks for watching!
Thanks ….made it very simple
Glad it helped!
Great video but I was needing to see how to change coils. But I subscribed and think some of your other video's will be helpful in the future. Thanks
Welcome! Sorry it wasn’t an exact match but fortunately changing the ignition coils is a easy as removing the wire, pulling the coil, and inserting the new one. Many more videos to come!
14:15. Of course, only one I had trouble with pulling off by hand was the hardest one to reach (driver’s side rear connector). 😂 Thanks for the suggestion.
I think cars like to make repairs tough sometimes. Glad it was helpful!
Thanks that was helpful
My pleasure!
Having just changed spark plugs on a 5.7 Hemi (although in a Ram pickup), I have a couple of suggestions to make life easier. Use double platinum or double iridium plugs...they last much longer and come pre-gapped. Also, a magnetic spark plug socket makes getting the plugs out and back in much easier.
Well said!
I'd like to see a video on how you cleaned out the engine bay and what did you do to be safe, great video...thanks
I like the idea! In the mean time, you can always start with just simply using compressed air or even a leaf blower to get the major dust, leaves, and other debris out the engine bay. If you want to detail it, I'm not the go-to person on that but there are tons of detailing videos and products you can check out!
Great video. I have 90,000 on mine and I I’ve never changed them. I had no ever checked to see how often they should be charged. Only 30,000 miles? 🤯
Yeah it’s pretty surprising how often they need to be done. Let us know if you see a difference!
@@learnsavediy will do. I bought it with 28,000 on it a few years ago but I doubt they were changed before I got it.
Once I get to it I’ll let you know. Only issues I’ve had with it are the water pump (video on my channel) and the blend door gear broke on the drivers side.
It depends on the year, I have a 2016 and the manufacturer recommends every 100k miles. Thank you for the video. Very well done.
My 2018 WK2 Summit 5.7l Hemi owner's manual says every 100K for spark plugs. Now I'm going to have to do some research and see if that is a good idea.
A short piece of 1/4" rubber line stuck on the plug works for getting them in the hole and started. As far as anti-sieze goes, a small amount wont affect torque. A SMALL AMOUNT, not lathered up like shaving cream 😆
I would definitely remove the rubber boots from the coil packs and check them out before tossing back above spark plugs… They could be on the verge of failing when the original spark plugs are replaced. Had a few corroded inside and fall apart… also add dielectric grease on both ends of the rubber boot. I’d always replace all coil packs when doing plugs
Thanks for your advice. Cheers
Can you tell me what is the numbering scheme for the cylinders on the 5.7L Jeep grand cherokee Overland Hemi? I need to change the cylinder 3 coil. Is that the second one from the front on the driver side or the passenger side? Thanks.
Drivers side
images.app.goo.gl/TjnmqQfACGKQq9kq7
Thanks bro. This video helped out. We just bought a 2011 cherokee overland. Hemi. Gonna do the plugs soon. Is gapping the plugs mandatory tho ??
It’s a tough question to answer. Like I mention in the video, most plugs come pre-gapped so you shouldn’t need to gap them. Some mechanics say they don’t even gap plugs anymore since it’s usually pre-gapped. My thought it is to at least quickly check because you never know. It takes seconds to do and it’d be a pain to put 16 plugs in only to have to start removing them. The engine is engineered to work off a certain gap. There is some wiggle room/tolerance but since the engine was made to run off a certain gapping, I bite the bullet and do it every time just to have one less thing to wonder about if I did right or wrong. Hope that helps!
@@learnsavediy makes sense appreciate that.
Where can I find that round gapping tool you were using? Auto store ?
@@h2cro953 honesty anywhere! I’ve linked in my video description but you can find it at any home improvement store, auto store, or online!
Jeep made it easy to change spark plugs I swear
Agreed!
What about Iridium plugs ...any opinion on them I want the best plug
Great question. I was thinking using Iridium as well given it lasts longer but I have heard from other WK2 5.7L owners that the they've experienced better performance sticking with copper. I haven't heard anything terrible about "upgrading" from the OEM copper to iridium or platinum but it is recommended to not "downgrade" if you do switch spark plug types. I would recommend doing some research or talking to other jeep owners in case you want a second opinion. Hope that helps.
I've never seen anyone gap a plug like u just did
@@hyperdukes7860 how do people usually gap them from what you've seen? I've only had to do it to two plugs ever and they were pretty bad but i used the other star tool similar to this round one
@@learnsavediy Owner's manuals and Chrysler/Mopar parts departments will tell you that the NGK copper core p/n LZFR5C-11 is the only factory authorized plug for 2010 thru 2013 5.7 Hemi GC vehicles. (No, there has never been a revision change to the manuals or an FCA letter authorizing iridium plugs in that year range, but false rumors abound.) The iridium plugs last longer but have a higher electrical resistance than copper, and therefore require more voltage and current to fire them off. Copper core plugs produce a strong spark using less input voltage than what Iridiums require. On the average, the voltage & current that the 2010 thru 2013 ECUs command/produce for this is right at the minimum limit to fire off the Iridium plugs. Therefore, if you read all the posts, blogs, and chat rooms, etc. you'll find that roughly half of the people putting Iridiums in their 2010 to 2013s have gotten away with it (had no problems) and roughly half have had misfiring and rough idle, etc. from the get-go. The difference is in the ECU for 2014 & up (not the coil packs, they're the same).
Are you experiencing any water leaks in your vehicle... I have that same truck and I am experiencing water on my passenger side. Floor board.
If you are sure it's water, you might have bad weather stripping on your passenger side. Are you able to replicate the leak? And are you sure it's water and not coolant?
@@learnsavediy I don't know when it Rain the water get in there you can hear it slashing around under the Seat. On the passenger side.
@@tonyautonga It's a Jeep GC WK2?
That's where the battery compartment is on 2011 & newer Grand Cherokees. Rain water likely coming in at a higher point on passenger side and then gravity flowing (under carpet) to lowest point on passenger side (battery compartment). You certainly don't want the water sloshing level to get as high as the battery terminals. Check door seals on both passenger side doors. Has the car ever been in an accident or experienced damage to passenger side?
My 2005 jeep grand Cherokee 57 hemi has fluctuating rpm at idle could this be spark plugs?
Could be a few things but bad plugs leads to engine misfiring which could manifest as rough idling
Once torqued the plugs loss, I use the coil to suck the plugs out 🤗.
Great tip! Thanks for sharing. Cheers
big brain time lol
Why 2 per cylinder seems a little overkill and unnecessary only cuz ive never seen it before maybe redundancy
Good question! Long story short is because of the shape of the combustion chamber. The HEMI has a hemispherical combustion chamber which is why there is 2 per cylinder. There is lots more too this but that’s the basics of it! Cheers
Can I get those spark plugs for me Cherokee 2006 5.7L hemi overland ????
Double check with your owners manual. It will say what type to use
It's better to use a torque wrench to torque the plugs especially on aluminum heads!!! My 2007 Grand Cherokee Overland 5.7 liter hemi says 12-14 foot pounds and no more than 15 ft/lbs. I think I will go with 13 ft/lbs. Aluminum is so easy to strip the threads out. Plus only snug with an 1/8 of a turn past that on the coil pack retention bolts.
With iridium its like every 100,000 miles.
No torque wrench 😬 You should definitely use a torque wrench, if you strip the threads you will have even more problems!!!!
A torque wrench is advisable but can be done without. Always better to be safe than sorry.
I have 2007 jeep grand cherokee hemi I the spark plugs still have a bucking problem
Some dielectric grease on those threads would’ve been good before you put those plugs back in.
Dialectic grease is definitely a good way to prevent corrosion between the boot and plug. Fortunately there was still a fair amount inside the coils so I didn’t feel the need to add any as I mentioned in the video. Great suggestion. Cheers
@@learnsavediy how were all the plugs that you pulled out of that engine?? Some were worse then others?
@@XX-166 good question. I didn’t pay close attention but all 16 looked about the same. No major red flags. But wise to keep track in case some look different so you can narrow down or prevent issues sooner
@@learnsavediy do you notice the vehicle running better or with better MPGs?
@@XX-166 slightly better mpgs. I didn’t know the service history of the vehicle and the plugs weren’t awful when I did it. If you have poor mpg or misfiring, plugs are a good way to go especially if they haven’t been done lately
I never understood this "gapping". it's ridiculous. The spark plugs should just fit in without this stupid procedure. it's 2023. why in the world are we still doing this?
People say they just install them if they’re pre-gapped but I’ve seen the tolerances all over the place despite being “pre-gapped” from the factory.
@@learnsavediy the iridium spark plugs from Mopar come pre-gapped i just replaced all of them on my 2014 Cherokee 5.7. I always try to go OEM