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Itsaj33pthing 01-15-2011 02:40 PM

My TJ is a 98 and i dont think its ever had a tune up
you think ill get more power if i get a full tune up? if so what brand of stuff should i get?

J10 01-15-2011 02:59 PM

I doubt you'll get more power, more likely a smoother running engine and one that will live longer. Maybe a bit better gas mileage too. Definately get it done though. Everyones got their favorite oil so I will just say reference your owners manual to see the minimum requirements and go from there

kcpep 01-15-2011 10:09 PM

There are a million posts on sparkplugs. I use the recomended Autolite plug. WalMart carries them. Fram air filter for the stock intake. Distributor cap and rotor from NAPA if you have one close. Get the good quality, with brass instead of aluminum terminals. Plug wires, dunno. Mine has cheap Autozone wires on it that the previous owned installed just before I bought it. They work, so I've left them alone. If I bought new ones I would get better quality than the cheapest Autozones though.

Just replacing the distributor cap and rotor on mine made it run much smoother. A full tune up should do wonders.

jasonwrangler 01-15-2011 10:40 PM

get new plugs, distributor cap, rotor, and cables. new air filter too.
better if you can clean the throttle body and idle air control valve.

BomberJeep 01-16-2011 07:57 AM

Cap, rotor, plugs ,and wires are going to be the big ticket things for a tune up.

carter.667 01-16-2011 10:35 AM

I did full tune up on my jeep it just runs smoother and idles better deff recommend do this. change wires plugs belts cap and belt

geiman 01-18-2011 02:46 PM

Just did the same to my 98; got it back in May and recently my gas mileage started to tank (worse than normal with the winter gas blend). After a nice tune up its running smoother and getting much better mileage. The spark plugs were very very bad, probably the main source of the problem.

jasonwrangler 01-18-2011 03:12 PM

you can get a tune-up kit that has everything you need. usually comes with OEM replacement and cheaper to buy the stuff separately.

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