....Spark Plugs....

[Moab]

I know this has been covered somewhere in the past.
I've got about 85K on my KJ and I really should do my plugs.

So what was the concenses???
Just buy stock plugs or is there an aftermarket
worth a few extra bucks.

My KJ is running fine and has been since I got it - so the stock plugs which are in it it now can't be that bad.

 

[DirtyKK]

ive read the 3.7 like platinum plugs. gapped to whatever spec your sticker says on the rad support.

 

[Moab]

ive read the 3.7 like platinum plugs. gapped to whatever spec your sticker says on the rad support.

Thanks I was going to do them about 4 months ago but got heavily into suspension changes then tires - so with that out of the way I've got a new Battery coming and thought I'd go ahead and do the plugs too.

 

[Moab]

Talk about a huge range for the same plug...
Take the Autolite APP5224 (Double Platinum) for instance:
$4.00 - $7.00 each depending on where you go:freak3:

 

[LibertyTC]

With a sniff of anti-seize on the threads and Die-electric grease to the boot bottom, I just use the stock NGK and replace them every 25-30k miles.

 

[67Customs]

I prefer NGK G-Power or Autolite Double Platinum.

You can get Autolite plus for cheap at Walmart.

 

[Moab]

Thanks

 

[diyman]

Didn't want to chime in, but I've read somewhere that Autolites too come from the other side of the Pacific now......

...The 'wrong' side... sorry aussies...:gr_grin:

Grab some NOS, while You can....

 

[jnaut]

I like plugs.

 

[jeeper4life]

I just put some boesch (sp?) in mine..they seem ok heh

 

[Moab]

Didn't want to chime in, but I've read somewhere that Autolites too come from the other side of the Pacific now......

...The 'wrong' side... sorry aussies...:gr_grin:

Grab some NOS, while You can....

Everything is coming from the other side.....oh brother:disgust:

 

[tjkj2002]

I just put some boesch (sp?) in mine..they seem ok heh

Just wait for the misfires and other idle related issues to start anyday.

 

[jeeper4life]

Just wait for the misfires and other idle related issues to start anyday.

Thanks for the vote of confidence! :waytogo:

 

[tjkj2002]

Thanks for the vote of confidence! :waytogo:

Common issue with Bosch spark plugs,more so with there +2/+4 plugs.Chrysler engines do not run very well on any Bosch plugs or Bosch O2 sensors.

 

[jeeper4life]

right on, well I'll run them for now..If I have issues I'll pull them. they have to better then what was in it though..

 

[motorking]

I know this has been covered somewhere in the past.
I've got about 85K on my KJ and I really should do my plugs.

So what was the concenses???
Just buy stock plugs or is there an aftermarket
worth a few extra bucks.

My KJ is running fine and has been since I got it - so the stock plugs which are in it it now can't be that bad.

Good Morning,
I am the technical manager at Autolite spark plugs. I recommend our XP series plugs for your KJ. The correct part number is XP5224. You can get them at Autozone for 5.99-6.99 each. Why spend that much? These are iridium alloy fine wire spark plugs. What does that mean? They are simply the latest and best technology in spark plugs. The small iridium center wire takes less voltage to fire, resulting in more coil dwell time and a larger spark kernal in the combustion chamber. This gives you faster starts, better fuel economy, more power and lower emissions. They also have a nickel plated shell for corrosion resistance, something you will need as these plugs will have zero gap erosion over 100k miles. If you have any ignition or spark mplug questions, I am happy to answer them at [email protected].
Also, if you really want to know more about spark plug metallurgy, go to autolite.com and watch the autolite challenge video module number one.

 

[motorking]

Everything is coming from the other side.....oh brother:disgust:

All premium autolite spark plugs, (platinum, double platinum and iridium are made in north america).

 

[tjkj2002]

Good Morning,
I am the technical manager at Autolite spark plugs. I recommend our XP series plugs for your KJ. The correct part number is XP5224. You can get them at Autozone for 5.99-6.99 each. Why spend that much? These are iridium alloy fine wire spark plugs. What does that mean? They are simply the latest and best technology in spark plugs. The small iridium center wire takes less voltage to fire, resulting in more coil dwell time and a larger spark kernal in the combustion chamber. This gives you faster starts, better fuel economy, more power and lower emissions. They also have a nickel plated shell for corrosion resistance, something you will need as these plugs will have zero gap erosion over 100k miles. If you have any ignition or spark mplug questions, I am happy to answer them at [email protected].
Also, if you really want to know more about spark plug metallurgy, go to autolite.com and watch the autolite challenge video module number one.

Sadly the KJ's coils don't have enough juice to fire iridium plugs correctly,some that have tried the XP Autolights have had severe radio noise.The KJ uses a "waste" spark system so most of those fancy puugs are not the best choice.

 

[motorking]

Sadly the KJ's coils don't have enough juice to fire iridium plugs correctly,some that have tried the XP Autolights have had severe radio noise.The KJ uses a "waste" spark system so most of those fancy puugs are not the best choice.

Um, I would have to disagree with everything you are stating. Jeep KJ's use "coil on plug" ignition, not waste spark. Iridium alloy spark plugs from Autolite, Champion or NGK (whatever brand you prefer) all have much lower required firing voltage than any brand of copper core plug. They were developed for OE automakers specifically for coil on plug type ignitions. I have personally installed them in over 100 Jeeps with no issue's.

 

[New Liberty]

:boxing:

Ohhhh...this should be good...