Tune up procedures advice - JeepForum.com

 
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post #1 of 5 Old 04-17-2013, 05:56 PM Thread Starter
Treleaven
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1998 XJ Cherokee 
 
Join Date: Apr 2012
Location: Kelowna
Posts: 353
Tune up procedures advice

So, I have decided to start getting some stuff done to tune up the Jeep before I start using it for work again in a couple of weeks.

I went and picked up my cooper plus plugs and I grabbed a champion cap and rotor and some wires.

Then I thought, do I actually need to do those yet and what is the determining factor. My Jeep runs great and smooth as it is.

When should you changed the wires and cap? And when you do, which onces should a person get? Do you still continue with Champion or do you start to switch it up to NGK. Right now the wires are Mopar and I have never changed them so I have no clue how long they have been in there but they look and act great.

I plan to do the diffs, oil, tranny, rad fluid changes. Am I missing anything else?


98 XJ Auto 4.0L
30x9.5R15 GY Silent Armor
Fender cut n fold
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post #2 of 5 Old 04-17-2013, 05:57 PM Thread Starter
Treleaven
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1998 XJ Cherokee 
 
Join Date: Apr 2012
Location: Kelowna
Posts: 353
I changed my plugs last year at this time. It was about 36,000 KM ago but I have noticed a recent lack of booyeah when I get on the skinny pedal.

98 XJ Auto 4.0L
30x9.5R15 GY Silent Armor
Fender cut n fold
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post #3 of 5 Old 04-17-2013, 06:12 PM
dnuccio
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1995 ZJ 
 
Join Date: Jul 2012
Location: Phoenix
Posts: 3,483
Are the wires date coded? They might be original. Mine were. I'd change everything, cap rotor wires plugs etc.

Reliability is relative
R.I.P. Ratmonkey
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post #4 of 5 Old 04-17-2013, 06:23 PM Thread Starter
Treleaven
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1998 XJ Cherokee 
 
Join Date: Apr 2012
Location: Kelowna
Posts: 353
I will have to check to see if they are. What did you replace yours with?

98 XJ Auto 4.0L
30x9.5R15 GY Silent Armor
Fender cut n fold
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post #5 of 5 Old 04-17-2013, 08:41 PM
zeejay92
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1996 ZJ 
 
Join Date: Oct 2011
Location: BROOKLYN
Posts: 189
I replaced mine with champion coppers and they work just fine although I changed them along with an MSD coil and MSD wires. Also consider changing out the fluid from within your transfer case.
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