spark plug

I just changed spark plugs and ignition coils on all 6 cylinders on Jeep Wrangler 2016 V6. I turn it on and no engine light comes on, i drive it to the front of my house and see a trail of oil. I look at the engine and see NO oil around coils, hoses or anything from looking at the engine top...

Alright. So before i take my ye ole jeep to the shop, I’d figure i come here first as usual. I replaced 2 of my o2 sensors a few months ago when i had a check engine light and resolved that problem (bank 2 sensor 1 and bank 1 sensor 1). Last week it was time i did the spark plugs and went ahead...

Title. Ordered some spark plugs yesterday. Today get an email saying that my order has been canceled. I did not cancel it. Anybody else have this issue? where else can I find mopar spark plugs?

I had changed out my spark plugs for my 2004 Jeep Wrangler 4.0 (don’t recall what brand old plugs were) and put champion in and they lasted alright. I got a misfire code recently and replaced them and my buddy picked me up the ngk plugs instead of champion, and a new coil pack. I also replaced...

So yesterday I was driving in my 2000 wrangler and while sitting at a stop light the rpm started fluctuating and eventually the car shut off. The car has always had problems starting first crank but always starts on the second crank. Also when Im accelerating sometime the rpm drop and come back...

Okay so I’ll cut right to it. This has been plaguing me for almost a month now and has finally come to a head. 3 weeks ago, I’m sitting around on a Sunday and decide to change my oil and do my spark plugs. I have a 2000 TJ 4.0 with 215k miles on it. Haven’t had any real issues besides replacing...

So I am trying to troubleshoot my problem with starting. Not every time I start my Jeep but sometimes, it is harder to crank. I put a new battery in a little over two years ago and just recently changed my spark plugs. Was wondering what else could be going bad to cause this issue?

So my 98 4.0L is hard starting lately (has new battery), thought I'd replace plugs. I've done it before on other vehicles. Question 1: Anything not straight forward about this? Question 2: Might it be a good idea to put a drop of Liquid Wrench on them before removal? Thanks

I'm honestly not very mechanically inclined, and part of the reason that I bought my TJ was to learn how to work on it. With all of the forum info and youtube videos, plus how relatively easy they are supposed to be to work on, I thought it would be a great place to start. Ever since I bought...

I have a 2005 TJ 4.0 and I joined for some help. I have a P0303 code which is cylinder 3 misfire. Things I have done so far include all new spark plugs, new coil rail, new o2 sensors, swapped the first fuel injector with the third fuel injector, and a new crank position sensor. Only thing I can...