Wirez and plugz
03-10-2014, 07:38 PM
#1
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Thread Starter
Wirez and plugz
Time for another tune up on the old '96 XJ 4.0 and I'm looking for advice on what plug wires to get. I have the usual local parts stores to choose from...
auto zone
advance
koi
o' reilly's
napa
car quest
Willing to spend a little more on quality but mostly just want to avoid any brands that are known junk. Any advice on reasonably good plug wires at these stores? Thanks.
auto zone
advance
koi
o' reilly's
napa
car quest
Willing to spend a little more on quality but mostly just want to avoid any brands that are known junk. Any advice on reasonably good plug wires at these stores? Thanks.
03-10-2014, 08:02 PM
#2
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Go to Napa. Get their Premium line as far as wires, cap and rotor. NGK plugs.
03-10-2014, 09:49 PM
#3
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Year: 1998
Model: Cherokee
Engine: 4.0
03-10-2014, 10:01 PM
#5
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
I recommend the Accel tune up kit from summit racing. Everything you need for about 70 bucks, and it's quality stuff.
03-10-2014, 10:17 PM
#7
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It always worried me at my store, for instance with ford COP's, that the ACCEL were only 2 dollars more than my cheapest stuff... and cheaper than my BWD line..
Last edited by JackJare9455; 03-10-2014 at 10:20 PM.
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03-13-2014, 12:35 AM
#8
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Thread Starter
Went to NAPA and the guy said their premium wires were listed as 'low resistance' which I've been warned against as good wires need resistance built into them to help keep the spark plug chatter away from stuff like the computer and whatever etc.
I've seen lots of advice for the NGK plugs. Which ones specifically should I get for my 4.0?
I've seen lots of advice for the NGK plugs. Which ones specifically should I get for my 4.0?
03-13-2014, 06:56 AM
#10
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Went to NAPA and the guy said their premium wires were listed as 'low resistance' which I've been warned against as good wires need resistance built into them to help keep the spark plug chatter away from stuff like the computer and whatever etc.
I've seen lots of advice for the NGK plugs. Which ones specifically should I get for my 4.0?
I've seen lots of advice for the NGK plugs. Which ones specifically should I get for my 4.0?
03-18-2014, 07:38 PM
#11
Seasoned Member
Thread Starter
I have a guy really pushing the advice to look into these higher end Autolite plugs. His advice...
'Three great spark plugs for your '96 XJ 4.0 include the platinum tipped Autolite AP985 or Champion 3034. Both will perform well for 100k miles. Or if you want them to last 200k miles, pay a little more for the iridium tipped Autolite XP985.'
Later in the same thread when I asked about one of the Champion plugs (not the 3034s he mentioned), he responded...
'Why go for those when for an extra buck or so per plug you can have plugs that will outperform the conventional plugs, fire more reliably in difficult situations, and perform well for 100k miles, 3X as long. Champion 3034 or Autolite AP985. Your XJ engine will run superbly on either.'
I'm leaning toward the copper NGKs people have mentioned. So I'm wondering, what's the case for the high end Autolites he's talking about vs. the copper NGKs?
'Three great spark plugs for your '96 XJ 4.0 include the platinum tipped Autolite AP985 or Champion 3034. Both will perform well for 100k miles. Or if you want them to last 200k miles, pay a little more for the iridium tipped Autolite XP985.'
Later in the same thread when I asked about one of the Champion plugs (not the 3034s he mentioned), he responded...
'Why go for those when for an extra buck or so per plug you can have plugs that will outperform the conventional plugs, fire more reliably in difficult situations, and perform well for 100k miles, 3X as long. Champion 3034 or Autolite AP985. Your XJ engine will run superbly on either.'
I'm leaning toward the copper NGKs people have mentioned. So I'm wondering, what's the case for the high end Autolites he's talking about vs. the copper NGKs?
03-18-2014, 07:44 PM
#13
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Year: 1990
Model: Cherokee
Engine: 4.0
did that guy own an xj? i doubt it from the way he was talking. our jeeps run best on the el chepo copper champions. no platinum, no iridium........ no split tipped stuff, just plain old copper champion plugs, most that get the fancy stuff end up going back to coppers after they dropped the money for the "premium" plugs.
03-18-2014, 10:35 PM
#14
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Year: 1990
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03-19-2014, 12:11 AM
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why would you want your plugs going "200k" miles... then you don't get to wrench on your jeep as much..
plus.. removing and inspecting plugs can give you a good indication on the "health" of that particular cylinder
plus.. removing and inspecting plugs can give you a good indication on the "health" of that particular cylinder