40k Spark Plug Change - 2.0T

[Trojan_Actual]

Decided to be a little proactive and swap out my plugs on my 2.0T since I just hit 40k.
Wanted the forum’s opinion on how these old plugs look.
The insulator material by the terminal is busted up and the plugs themselves look crispy.
If this is normal for a 40k mile 2020 daily driver and I’m being overly anal then I’ll just shut up ?.
On a positive note the Jeep now runs smooooth!
Thanks for your time!

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[Rogersocal]

I'll have to follow this, Im due as well. How hard was it? I hear there is one plug that is a pain to get to. I remember on the 3000GT i had to remove the entire intake plenum to get to a few plugs.. Anything like that here?. Which plugs did you end up using?

 

[rcadden]

I'm at 49K and was planning to do this at 60K, as the manual recommends, but now you have me thinking I need to do it earlier.

 

[Trojan_Actual]

I'll have to follow this, Im due as well. How hard was it? I hear there is one plug that is a pain to get to. I remember on the 3000GT i had to remove the entire intake plenum to get to a few plugs.. Anything like that here?. Which plugs did you end up using?

1,3 and 4 are easy to get to. #2 requires another wire clip to be disconnected and hose unclamped and moved out of the way. No big deal BUT, the little white clips that are on the electrical connectors are delicate AF, so I recommend being very careful with them. I saw a couple videos on YouTube on how to do it and that’s a point that they kept pressing was just being gentle with him. I used a small flathead to gently pry them up and then push down on them while I wiggled the connector free.

The plugs I used are “NGK Laser Iridium Plug Number ILZKR7G7G Spark Plug - 90219”

 

[running_man]

I changed mine out on my '19 JLUR at 42k, not long after I bought it used. My recollection is that it wasn't very difficult, just took my time......not near as easy as my old 4.0 TJ though!

Those plugs look a little dirtier than I remember the ones I pulled out of mine being. I replaced them with Mopar plugs (68292346AA) because I had a difficult time finding any locally, so I just ordered them off of Mopar wholesale parts.com. Can't say I saw any real change in how smooth the engine runs, but as the third owner, didn't have much history on the upkeep, so decided I'd change them as a relatively inexpensive 'proactive' move like you.

 

[Ang1Sgt]

If you can tell the difference in smoothness then it for sure was worth the effort!

 

[Trojan_Actual]

If you can tell the difference in smoothness then it for sure was worth the effort!

Yea I feel better response in the pedal for sure. Not massive but enough to make me happy!

 

[jjvincent]

I'm wondering by what you mean by smoothness? Your Jeep will detect if it's misfiring and throw the check engine light. It's calculated by each impulse that is detected by the speed of the crankshaft. So when it misfires or not firing completely, the crank is slightly slower on that pulse. They go by counting the teeth on the timing wheel vs the speed they go by.

 

[J.Ferreira]

Decided to be a little proactive and swap out my plugs on my 2.0T since I just hit 40k.
Wanted the forum’s opinion on how these old plugs look.
The insulator material by the terminal is busted up and the plugs themselves look crispy.
If this is normal for a 40k mile 2020 daily driver and I’m being overly anal then I’ll just shut up ?.
On a positive note the Jeep now runs smooooth!
Thanks for your time!

I don't necessarily know about "normal for a 40k mile 2020 daily driver" but they're very normal for a turbocharged high compression direct fuel injected engine at 40k.

 

[J.Ferreira]

I'm wondering by what you mean by smoothness? Your Jeep will detect if it's misfiring and throw the check engine light. It's calculated by each impulse that is detected by the speed of the crankshaft. So when it misfires or not firing completely, the crank is slightly slower on that pulse. They go by counting the teeth on the timing wheel vs the speed they go by.

*cough* placebo *cough*

 

[JLfromCA]

looks rich

https://ngksparkplugs.com/en/resources/read-spark-plug

 

[Trojan_Actual]

I'm wondering by what you mean by smoothness? Your Jeep will detect if it's misfiring and throw the check engine light. It's calculated by each impulse that is detected by the speed of the crankshaft. So when it misfires or not firing completely, the crank is slightly slower on that pulse. They go by counting the teeth on the timing wheel vs the speed they go by.

Smooth as in it runs smoother. Quieter. Better response in the pedal. Wasn’t misfiring.

 

[JP29]

I did mine last year about 10K miles sooner than you did and I like my skinny pedal more than most, but they looked pretty clean in comparison.

 

[angrykitty]

looks rich

https://ngksparkplugs.com/en/resources/read-spark-plug

Blown up to 3-4 times the original size, these plugs all have different characteristics. I would not be able to differentiate between any of these (except maybe melting) on plugs I pulled out of my Jeep, they'd all look the same.

 

[JLfromCA]

Blown up to 3-4 times the original size, these plugs all have different characteristics. I would not be able to differentiate between any of these (except maybe melting) on plugs I pulled out of my Jeep, they'd all look the same.

you can’t tell the difference between picture one and picture two ? Light and dark. NGK made the chart. Contact them and say you see no difference in the spark plugs lol You better stick to letting a mechanic do your work for you.

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