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Old 03-05-2011, 12:36 PM
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What to do for a tune up?

Alright, I'm looking at doing a full and complete tune up around June (So, I'll have some spare $$$). What should I look into doing?
I have an '02 WJ with the I6 and 85,000 by time June comes around.

So far, I'm looking at spark plugs, o2 sensor, fuel filter, and new fluids. Anything else?
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Old 03-05-2011, 07:17 PM
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Re: What to do for a tune up?

Throw in an air filter and you got it covered.
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Old 03-05-2011, 08:57 PM
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Re: What to do for a tune up?

Clean your throttle-body and if you want, you can try and sea-foam it!
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Old 03-06-2011, 04:44 AM
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Re: What to do for a tune up?

Did you include in new fluids: engine cooling liquid and brake fluid?
When never changed before, the PCV valve would be an item.
Something many people forget about, lubrication of the the brake caliper sliding pins and the front suspension upper steering knuckle.
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Old 03-06-2011, 11:50 AM
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Re: What to do for a tune up?

Here is the maintenance schedule.

http://www.wjjeeps.com/service/maintenance_wj.htm

Depending on how many miles you have, I would also consider:
-Distributor Cap and Rotor Button ($15-$30)
-Spark Plug wires ($20-$50)

That will take care of all the spark related items- don't know if everyone agrees with me. Some might think I am getting carried away, but if I was going through all the trouble I would do these items as well

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Old 03-06-2011, 04:20 PM
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Re: What to do for a tune up?

The I-6 doesn´t have a distributor anymore and there is an ignition coil rail without separate wires. So ignition wise only the spark plugs need to be changed.
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Old 03-06-2011, 08:46 PM
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Re: What to do for a tune up?

I seafoamed it in September so that won't be needed. I just have to clean the air filter. I have the K&N cold air intake...
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