Lost a coil driving home with the family. Your video quickly helped me figure out what size socket at needed to buy to fix in the AutoZone parking lot. Thank you
Thank you for watching our auto repair video that shows you how to replace the ignition coil on a 1999-2004 Jeep Grand Cherokee with a 4.0 motor. Glad to hear this helped you out. Have a great day!
I have a question, I followed your video and when I went to start my jeep it was not starting and misfiring. I took the coil pack off and re-installed it and it still did it. Could it be the spark plugs?
@@HomeownerRepair I gapped the spark plugs, reinstalled them three times along with the coil pack. I’ve taken it all and put it back together several times and it’s just not sparking
Turns out the new adapter that came with the coil pack was faulty! I re-installed the old one to verify and then put the new one back on without the aftermarket adapter the new coil pack came with. Great video by the way!
What happens if the red tab on the connector is broken off. I removed the bolts and was able to lift the coil pack but noticed the red tab was missing and I have no idea how to remove it now.
I got the coil pack off with no problem on my 2004 Jeep Grand Cherokee but I cannot get the plug off. The red tab has been slid to the side but the plug will not release. Any thoughts? Great video and easy to follow by the way.
Hello, this video was extremely helpful. I replaced this tonight. I also replaced the sparkplugs about 6 months ago. The check engine light disappeared but came back on after driving. What else could it be? Or do I just need to drive it until the care recognizes the new part?
Pull the code to see what the check engine light is pointing to. Sometimes it takes 100 miles of driving or three heat cycles after a repair to clear the code on your vehicle. Hope this helps you out.
good afternoon friend I have a problem with my grand cherokee 99 4.0 6 cylinders the starter coil is broken perp starts and works not 100%, I have put 3 new ones on it and with none it works well it even works worse than with the damaged one, that could be happening? Is it possible that those that I put in despite being new are defective? What I can do?
The 1999 year require a specific coil pack. The connecting plug is turned different and it affects the firing order. I'd really like to know why jeep did this too!
I wish you would of started it showing it works I've had to change mine on my 99 jeep but it didn't start after just miss fired back fire like timing was way off put old one back on started right up but for no1 that's why I was changing it just can't beleave the new one is bad
I have a 2003 grand Cherokee Laredo it’s v6 4.0 code read coils so I changed it car keep shaking off and on then car shuts off from time to time I went back to autozonethey said I need a coil ignition connector so I got it car cranks but won’t turn on any tips?
Hi, on an '04 4.0 i6 jeep I've got multiple misfiring cylinders 2,3, & 6 with a shaking engine and pulsing power when driving under a load. Upstream o2 sensors have been changed, fuel filter has been changed and plugs have been changed. Is it possible to be a bad coil pack that's causing the multiple cylinders to misfire, and is there any way to test that without a spark plug tester to determine if I'm getting good spark?
Same thing happened to me. I changed the coil pack and it helped, my crank shaft sensor also went bad and triggered those codes, you may want to try to chand it as well if you keep getting misfire codes
So far the coil pack has done the trick, I'm looking at changing the throttle position sensor since I only idle down to about 1k rpm but I'm not in any big hurry until I test it
There is a red tab that locks the spark plug ignition coil to the harness, unlock that tab and the coil should separate from the harness for you. The video explains this as well. Hope this helps you out...Tony
How do you know when it needs to be changed? My car has no pressure when i press on the accelerator. It hesitates a lot before it slips into the Drive gear. Finally pushing the vehicle to move.
I have the red tab completely removed (as in no longer attached to the jeep) and my plug is connected solid as a rock. I'm even using a borescope and I can't figure this out. Aggravating!
Subscribed.Thanks. Question. I have a misfire on cylinder 2. I see you're replacing the coil pack. What about the ignition coil? Does that need to be replaced too?
Thanks very helpful Video. One question is how do you know if the Ignition Coil needs replacement? I am going to change the plugs but not sure if I should do the coil.
Make sure all of the boots are seated properly on the spark plugs. If that does not work, put the old coil pack back on to see if the Jeep fires up, if it does it is more likely a bad coil pack you received. Hope this helps you out.
I had a REAL HARD time putting the electrical connector back on. It only went on about 98% but not enough to hear a “click”. The Red tab wasn’t able to slide over. I spent over an hour trying to fiddle with it.. I ended up just putting it all back together without sliding the red tab. I don’t know what to do.
@Christopher Sanchez just replaced my dad's coil pack and it does a small sputter and runs like trash as well. Everything is snug. Did yours end up running out of that or did you do something different??
My 04 Limited gives a little shake when idling but no codes showing, should i just change the air filter and see if car doesn't shake anymore before changing spark plugs?
If the plugs haven’t been done in a while I’d toss a set in. They are easy to do. Just get the Champion spark plugs, you don’t need the crazy expensive ones
Help. Jeep wont start after replacing the coil pack. I followed everything on the video and reinstalled my old one and it started. New one wont work but its the right part i got it from autozone
i just had this same problem, i thought it was my fuel pump but it turned out to be my crank sensor, it is a pain in the A$$ to replace but i got mine out and replaced with some ingenuity and it runs great now
This will clear the codes is the part that was causing the code has been replaced with a good part. Usually once the damaged part has been replaced the code will typically clear after three heat cycles or around 100 miles of driving. Hope our ignition coil replacement video helped you out.
It was then it came off my car stops sometimes on stop signs or intersections sometimes it doesn't do that sometimes its also when we start it it shakes but when we get it going itll ride fine.
HomeownerRepair I originally changed the spark plugs myself and it started to misfire my mom tried to changed the coil out herself now it will not even start
The designer or engineer who came up with this electrical connection, in this particular location, should be fired and never hired again. The coil should have a built-in shielded pigtail and the connection to the wiring harness should be on the firewall,. If you are going to use such a cumbersome end fitting on a wire harness, it should be located in a place where visibility and access is maximized. I would rather pay 25 dollars for the foot and a half of extra wire, than to be confronted by a connector which is vulnerable to getting stuck when a previous mechanic has not used dielectric grease or anti-seize during a previous part replacement.
Putting the coil pack back on without the grease isn't the problem. But if you want to preventing carbon tracking and easy removal the next time, you'll use the grease.
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Your tip on removing the electrical connector saved me a lot of aggravation, thank you !
Yeah that connection can be a pain. Were you able to disconnect it easily?
@@HomeownerRepair
Does the WJ have the OPDA issue?
Lost a coil driving home with the family. Your video quickly helped me figure out what size socket at needed to buy to fix in the AutoZone parking lot.
Thank you
Thank you for watching our auto repair video that shows you how to replace the ignition coil on a 1999-2004 Jeep Grand Cherokee with a 4.0 motor. Glad to hear this helped you out. Have a great day!
Road Dog ! 🤠✌️
How do you know if the problem is the ignition coil or the injector?
Thanks for the video. It helped me with changing the coil pack and plugs on my 2004 Grand Cherokee.
Glad this helped you out
My comment for your efforts! Thank you man! Can’t wait to fug with that plug 😂
The plug isn't too bad. Hope this auto repair video helps you to replace the ignition coil on your Jeep. Have a great day!
Great information, I have to change out my 04 Jeep coil pack and spark plugs next weekend.
Glad to have helped! Thanks for watching
THANK YOU !! THAT LITTLE PLUG IS A PAIN IN THE YOU KNOW. THANKS AGAIN
Yeah, That plug can be challenging. Tried the best I could to show how it releases in the video.
I have a question, I followed your video and when I went to start my jeep it was not starting and misfiring. I took the coil pack off and re-installed it and it still did it. Could it be the spark plugs?
Did you gap all of the spark plugs correctly? Is there a check engine light on? If there is you should pull the code to see what it is pointing to.
@@HomeownerRepair I gapped the spark plugs, reinstalled them three times along with the coil pack. I’ve taken it all and put it back together several times and it’s just not sparking
Turns out the new adapter that came with the coil pack was faulty! I re-installed the old one to verify and then put the new one back on without the aftermarket adapter the new coil pack came with. Great video by the way!
What happens if the red tab on the connector is broken off. I removed the bolts and was able to lift the coil pack but noticed the red tab was missing and I have no idea how to remove it now.
Did you try to remove it? The red tab should just lock it in place.
I got the coil pack off with no problem on my 2004 Jeep Grand Cherokee but I cannot get the plug off. The red tab has been slid to the side but the plug will not release. Any thoughts?
Great video and easy to follow by the way.
How did you make out. That tab can be a pain. Thanks for watching, hope the video helped
this is happening to me
just gotta want it
after what mileage to replace the coil
The ignition coils should last to around 100,000 miles. I typically do not replace mine until one goes bad.
@@HomeownerRepair ok, thank you
How about friend, what faults did you have or why did you change them? I'm interested to know if that's what's happening to mine.
You may get a check engine light with a code that points to a cylinder misfire, one of the things that can trigger this code is a bad igition coil.
Hello, this video was extremely helpful. I replaced this tonight. I also replaced the sparkplugs about 6 months ago. The check engine light disappeared but came back on after driving. What else could it be? Or do I just need to drive it until the care recognizes the new part?
Could be o2 sensor if you're having the same symptoms
Pull the code to see what the check engine light is pointing to. Sometimes it takes 100 miles of driving or three heat cycles after a repair to clear the code on your vehicle. Hope this helps you out.
good afternoon friend I have a problem with my grand cherokee 99 4.0 6 cylinders the starter coil is broken perp starts and works not 100%, I have put 3 new ones on it and with none it works well it even works worse than with the damaged one, that could be happening? Is it possible that those that I put in despite being new are defective? What I can do?
Did you replace the spark plugs too?
The 1999 year require a specific coil pack. The connecting plug is turned different and it affects the firing order. I'd really like to know why jeep did this too!
Thanks for this! Got my coil and new plugs today.
Thanks for watching. Don't forget to sub the channel to receive all of our latest uploads.
Great quality video, straight to the point, no extra nonsense yammering.👍
Thanks for watching
Thanks 👍 that was very helpful
Glad it helped
Thanks it was helpful
Glad it helped
Apologies for my ignorance but can anyone tell me what xj and wj stand for
I'm not sure eiither all I know is they all empty your pockets the same...lol
I wish you would of started it showing it works I've had to change mine on my 99 jeep but it didn't start after just miss fired back fire like timing was way off put old one back on started right up but for no1 that's why I was changing it just can't beleave the new one is bad
Did you ever find a fix? Literally the same issue im having right now!
99 year has a different connector, the wires are all reversed 180, you can buy an adapter or cut and reconnect wires
google it
@@chadterry9770 what about the 2000 gc. ?? Can I use a coil from 2003 gc?
Sounds like the new ignition coil may be bad.
Why did you replace that??? Did you get a check engine light????
I was getting a cylinder misfire code.
I have a 2003 grand Cherokee Laredo it’s v6 4.0 code read coils so I changed it car keep shaking off and on then car shuts off from time to time I went back to autozonethey said I need a coil ignition connector so I got it car cranks but won’t turn on any tips?
Tryna crankshaft sensor
Sorry just saw this post, did you get the issue resolved?
Is it difficult to change the coil wire?
Bc I already change the coil and the spark plugs so I think It has to be that unless I didn’t put the wire correct to the coil
We currently do not have an auto repair video on this particular repair.
Hi, on an '04 4.0 i6 jeep I've got multiple misfiring cylinders 2,3, & 6 with a shaking engine and pulsing power when driving under a load. Upstream o2 sensors have been changed, fuel filter has been changed and plugs have been changed. Is it possible to be a bad coil pack that's causing the multiple cylinders to misfire, and is there any way to test that without a spark plug tester to determine if I'm getting good spark?
Same thing happened to me. I changed the coil pack and it helped, my crank shaft sensor also went bad and triggered those codes, you may want to try to chand it as well if you keep getting misfire codes
So far the coil pack has done the trick, I'm looking at changing the throttle position sensor since I only idle down to about 1k rpm but I'm not in any big hurry until I test it
HomeownerRepair hello! How hard to change crank shaft sensor? Thank you
Map Sensor could cause this as well.
I am having issues removing the wire harness connector
There is a red tab that locks the spark plug ignition coil to the harness, unlock that tab and the coil should separate from the harness for you. The video explains this as well. Hope this helps you out...Tony
@@HomeownerRepair is pinched or slide up or down? I recently seen that tab as well
Good job thank you so much
No problem
How do you know when it needs to be changed? My car has no pressure when i press on the accelerator. It hesitates a lot before it slips into the Drive gear. Finally pushing the vehicle to move.
Usually you will get a cylinder misfire code if the ignition coil has gone bad
sounds like your transmission is worn and slipping
How doi replace the distributor cap
We currently do not have an auto repair video that shows you how to replace the distributor cap on a Jeep Grand Cherokee.
i cant take off my clip:( i did pull it up and pushed it to the side but it didnt work IDK??
It can be tricky to release, but once the clip is up it should come free for you
I have the red tab completely removed (as in no longer attached to the jeep) and my plug is connected solid as a rock. I'm even using a borescope and I can't figure this out. Aggravating!
I always wd40 those clips and wiggle it loose with a screwdriver. Dirt gets in there. Then I usually break them off on purpose.
Subscribed.Thanks. Question. I have a misfire on cylinder 2. I see you're replacing the coil pack. What about the ignition coil? Does that need to be replaced too?
This coil pack has the ignition coils built into it
@@HomeownerRepair Thanks for the clarification!
@@sacredcowbbq1326 : Paty😉👍
Explained very well.
Thanks for watching!
Thanks very helpful Video. One question is how do you know if the Ignition Coil needs replacement? I am going to change the plugs but not sure if I should do the coil.
You
May get a misfire code. If it’s not acting up I’d just replace the spark plugs
Jackson State Mississippi Bank
How do u test it
Turn the vehicle on when finished and make sure it runs correctly.
Great video ...
Hope this video on how to replace the ignition coil in a 1999-2004 Jeep Grand Cherokee has helped you out.
I changed my ignition rail and now the car cranks but doesnt start
Make sure all of the boots are seated properly on the spark plugs. If that does not work, put the old coil pack back on to see if the Jeep fires up, if it does it is more likely a bad coil pack you received. Hope this helps you out.
I had a REAL HARD time putting the electrical connector back on. It only went on about 98% but not enough to hear a “click”. The Red tab wasn’t able to slide over. I spent over an hour trying to fiddle with it.. I ended up just putting it all back together without sliding the red tab. I don’t know what to do.
That tab locks it in place. Check the plug ends to see if there is something preventing the harness from sliding in all the way.
It should clear the check engine light after it started to blink at you! After installing the new coil pack.
It may take three heat cycles or 100 miles of driving
@@HomeownerRepair so I have been told. But the jeep is running like shit.
@Christopher Sanchez just replaced my dad's coil pack and it does a small sputter and runs like trash as well. Everything is snug. Did yours end up running out of that or did you do something different??
My 04 Limited gives a little shake when idling but no codes showing, should i just change the air filter and see if car doesn't shake anymore before changing spark plugs?
If the plugs haven’t been done in a while I’d toss a set in. They are easy to do. Just get the Champion spark plugs, you don’t need the crazy expensive ones
You may want to clean the throttle body?
Everything i needed, u da man
Hope this video on how to replace the ignition coil in a 1999-2004 Jeep Grand Cherokee has helped you out.
Help. Jeep wont start after replacing the coil pack. I followed everything on the video and reinstalled my old one and it started. New one wont work but its the right part i got it from autozone
If the old coil pack doesn’t throw any codes, I would run it until it fails. If you need a new one, exchange the AutoZone one for another
I have the exact same thing happening now
Good job.
Thank you for watching our auto repair video that shows you how to replace the ignition coil pack on a Jeep Grand Cherokee. Have a great day!
hello, i just replaced my plugs and coil on 99 grand cherokee 4.0. now it wont start , starter cranks, engine doesnt turn over
Are you getting a check engine light?
no, before i replaced everything there was no light either but diagnostic tool said multiple misfires
i just had this same problem, i thought it was my fuel pump but it turned out to be my crank sensor, it is a pain in the A$$ to replace but i got mine out and replaced with some ingenuity and it runs great now
@@yell89sub : pretty sure that coil pack in no seated right
@Marion Spence sounds like the crank sensor
Good job bro thx for the vid👍🏾
Thanks for watching
THANK YOU
You're welcome. Thanks for watching
to clear the codes undo your battery cables and touch them together for 20 seconds or so , then hook them back up
This will clear the codes is the part that was causing the code has been replaced with a good part. Usually once the damaged part has been replaced the code will typically clear after three heat cycles or around 100 miles of driving. Hope our ignition coil replacement video helped you out.
That connector was a mother, I left blood.
lol..Yeah sometimes auto repairs are worse than a hockey fight...lol
@@HomeownerRepair This video helped me alot in my repair, Thank You for it. In the future I will use you.
What is the part number of the coil?
Here’s a link to the ignition coil www.1aauto.com/jeep-ignition-coil-pack/i/1aeci00116?f=372546&y=2004
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When changing my coil packs do I need be spark plugs too
Thanks dude!
No problem!
Very helpful. Thanks
Thanks for watching. Hope this helps you out.
thank you. very easy job, except for that dang clip! i am not a fan of the stupid red tab! finally got it though, job was a success!
That clip is a pain
Thanks the suhgestiom of putting the coil pack down! !!
No problem. Hope this helped you out
Alex : que tal quedo ese??
Literally only here to see how to get this fckn plug loose
Hope this video on how to replace the ignition coil in a 1999-2004 Jeep Grand Cherokee has helped you out.
And what if my car shakes now after we changed it.
Did you change the ignition coil due to a cylinder misfire code?
Umm im not sure what that means.
Oh no ! I didnt
Did you have a check engine light come on..why did you change the ignition coil ?
It was then it came off my car stops sometimes on stop signs or intersections sometimes it doesn't do that sometimes its also when we start it it shakes but when we get it going itll ride fine.
Your from boston. Lol love the accent. Can you say heeeey whats up doc in your next videonlol
All the comedians are out tonight 😜
It will shake but won’t stay running now it will turn but not start
Did you change the spark plugs and gap them correctly
I didn’t
HomeownerRepair I originally changed the spark plugs myself and it started to misfire my mom tried to changed the coil out herself now it will not even start
My jeep has the same problem, it will turn but not start. Any news?
cuanto bale
Thanks for watching
The designer or engineer who came up with this electrical connection, in this particular location, should be fired and never hired again. The coil should have a built-in shielded pigtail and the connection to the wiring harness should be on the firewall,. If you are going to use such a cumbersome end fitting on a wire harness, it should be located in a place where visibility and access is maximized. I would rather pay 25 dollars for the foot and a half of extra wire, than to be confronted by a connector which is vulnerable to getting stuck when a previous mechanic has not used dielectric grease or anti-seize during a previous part replacement.
It can be a little bit of a challenge to replace.
Is it really that bad to just deal with the slightly extra effort that it takes to put the coil pack back on without the grease? Geez.. lol
Thanks for watching.
Putting the coil pack back on without the grease isn't the problem. But if you want to preventing carbon tracking and easy removal the next time, you'll use the grease.
That clip suuuuuucks lol
Omg it's a huge pain...lol Hope you liked the video!