Looking to change my plugs and pack out. Jeep has just under 74,000miles one it. What are your advices on what products to run with my jeep?? I saw alot of different suggestions.....just not sure.... i have a 2004 4,7l v8
Original plugs and why change the coils if no problems? http://www.wjjeeps.com/service/sparkplugs.htm CAUTION: The standard 4.7L engine uses copper core ground electrode spark plugs, they must be replaced with the same type/number spark plug as the original. If another spark plug is substituted, pre-ignition will result.
I am running the champion single platinums right now. I got them at NAPA and because the cost difference was not that much I went wiht the platinums. The only reason I did is because I don't change my plugs but about avery 75,000-100,000 miles. No real proformance difference.
Leave the coil packs alone. I have over 235,000 miles on mine with no problems.
Previous Jeeps: 84 CJ7 (A True Jeep), 2000 XJ (163,000 Miles/Totaled (Pictures of wrecked Jeep in gallery)), 2004 WJ (parting out die to major electrical issues)
If you don't have time to do it right the first time, how do you have time to do it over.
2003 WJ in Jeep Green Metallic, 4.0/242/4.10's. 4" Teraflex springs w/ RE monotube shocks and IRO short arms, cheap intake w/ amsoil filter, 2.5" hi flow cat and back exhaust, lots of lights and other misc crap.
I wouldnt let a copper core spark plug go for more than 30k at the most. Not sure how often you like to change them. Im am actually running the ngk iridiums on my 4.7 and I have had no problems at all. Ive heard some like to use autolites in their jeeps as well. I just run ngks on all my stuff so I did it on the WJ as well.