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Spark plug replacement

  
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Spark plug replacement

 
Hammerdown03 Hammerdown03
New User | Posts: 27 | Joined: 12/08
Posted: 10/20/09
10:43 AM

Hey everyone I am getting ready to replace my Spark plugs and i just wanted to get an idea of what everyone is useing in their rigs. This is a daily driver 2003 TJ with a 4.0L. If you could let me know what you are putting in and how they are doing for you.  

 
Jp Web Editor Jp Web Editor
Administrator | Posts: 2001 | Joined: 12/06
Posted: 10/20/09
02:12 PM

I've always liked Autolite and Bosch.  
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So it's not a Jeep... sue me... it's still faster!

Questions? Comments? Concerns? PM Me!

 
ben.metzler ben.metzler
New User | Posts: 2 | Joined: 10/09
Posted: 10/23/09
12:57 AM

I'm in the process of replacing my distributor, wires and plugs as well for the new Unichip I just bought.  When I asked the programmer which plugs, he said "Run Champion plugs as per the factory specs...you can increase the spark
plug gap a little bit more though-maybe an extra .010 over stock."  Maybe it's just due to the Unichip.  Any other opinions?  

 
Rawkon Rawkon
Moderator | Posts: 60 | Joined: 12/07
Posted: 10/24/09
11:20 PM

go champion on mopar engines.  ive seen alot of dyno sheets with spark plug changes.  regular  copper truck plug spark plugs work the best.  I wouldnt mess with the gap,  just keep it stock.  
02 Tj with a few mods

 
biggawd biggawd
New User | Posts: 2 | Joined: 01/12
Posted: 01/11/12
06:16 AM

champion works great in my 95 jeep cherokee, i just bought this used jeep and it still needs a little work but the owners manual said champion and thats what i got. the guy down at the auto parts store said that with my jeep being a 95, that i dont need those expensive plugs just regular champion plugs.