Spark Plugs, Wires, Distributer Cap

[RUBICON13]

Well,

Due to some rough running and starting (on may 2007 JKU Rubicon; yes, mini van motor  ) it appears it is time for some new spark plugs (137,500 km). I bought it used at 127,500 so, I don't know if plugs have been replaced before.

So, my question(s) is/are: what spark plugs do you recommend, and should I replace the wires and/or distributer cap too while I am at it? The wires seem to look fine but, I have not taken the cap off to look at it.

Thanks for your advice!

Jeff

[LEMON-AID JAY]

Only use Champion plugs in a Chrysler engine 

[RUBICON13]

Jay,

Thanks for the advice. Any particular ones (i.e. double platinum tip V-groove etc)? Also, why only Champion?

Jeff

[apeman]

Black champion truck plugs.

[TL-Iguana]

Black champion truck plugs.

They discontinued those did they not? I havent been able to find them anywhere as of late If you have a supplier Aaron please PM me ill buy another set while I can. I tried switching to an Autolite that was recommended to repalce the Truck Plugs but they dont even come close to the Champions

[frenchy]

Only use Champion plugs in a Chrysler engine 

Any reason for this or did you just buy a metric ton load of Thier stocks?   

[LEMON-AID JAY]

I worked as a chrysler tech for 12 years and in that time I and the dealers found that champion plugs are the best match. Most other brands will give you problems sooner or later.

[Knox]

for the 4L TJ I've had these 3 recommended.

Autolite xp-985 iridium
Autolite double tipped platinum APP985
Champion 7034

if that helps at all

[RUBICON13]

Guys,

Thanks for all of your tips.

I have gone with the Champion Double Platinum (Canadian Tire finally had 6 in).

But, I haven't heard any response as to whether I should replace the wires and/or distributor cap at this time. Any suggestions. The wires look fine but, I haven't taken the cap off to look at it yet.

Thanks,

Jeff

[binare]

Do you have a dist cap?

[Anton]

Jeff

I have the OEM Wires, Distributer of the JKU 2009 Sahara, if they are same as urs and you need them we can work something out.

I believe they where used for a bout a 1.5 years i think and then i bought the Performance Distributors Firepower Ignition Kit.



Anton

[Knox]

But, I haven't heard any response as to whether I should replace the wires ...

It's almost never a bad idea to replace something in a jeep

whether its needed in your 07 idk, I'd plan on replacing mine on my 03 (if I had wires)
if they still look good, its your call but some people do it every two years

[RUBICON13]

Thanks guys!

I hope to get to it in the next couple of weeks.

If they look good and fire fine after I replace the plugs I will leave them alone. If it ain't broke...

Jeff