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Old 09-15-2010, 02:48 PM   #1
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2003 TJ w/151k What's Going to Break Soon?

Hi All,

I have a 2003 TJ 6 cylinder 4.0 engine Wrangler with 151k miles on it. The only thing I've replaced are brake pads, rear rotors, engine belt, battery and water pump/thermostat. It's almost winter time and I'd like to prepare for whatever. What is about to break and need replacement or repair? Thanks in advance.

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Old 09-15-2010, 03:15 PM   #2
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Properly serviced nothing should break.

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Old 09-15-2010, 05:36 PM   #3
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Nothing will break if you take care of it. And if you are acting crazy....well you gotta pay to play!
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Old 09-15-2010, 06:13 PM   #4
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Replace your hoses. The only two times a 4.0 has left me sitting roadside was because of a busted hose, once a heater hose and once an upper radiator hose. In the dead of winter. At night. Both times. Hoses are cheap and easy to replace.
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Old 09-17-2010, 09:08 AM   #5
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Thanks. I've replaced hoses for winter. Everything else is original. What about clutch, differentials, bearings, man trans fluid, etc. I've never had this thing in to a dealer for maintenance .... maybe I should have it checked out?
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Old 09-17-2010, 09:46 AM   #6
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Change the fluids in the Difs and the transmission and transfercase if you haven't.
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Old 09-17-2010, 10:13 AM   #7
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Quote:
Originally Posted by kenpoengineer View Post
Hi All,

I have a 2003 TJ 6 cylinder 4.0 engine Wrangler with 151k miles on it. The only thing I've replaced are brake pads, rear rotors, engine belt, battery and water pump/thermostat. It's almost winter time and I'd like to prepare for whatever. What is about to break and need replacement or repair? Thanks in advance.
Rear Rotors?
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Old 09-17-2010, 10:22 AM   #8
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Rear Rotors?
Well duh, they're there right below the Flux Capacitor.
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Old 09-17-2010, 11:40 AM   #9
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Blinker fluid and muffler belt.
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Old 09-17-2010, 07:22 PM   #10
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What some good fluids for the diffs.? And manual trans? I am think about changing them because I have over 200,000 miles on my jeep. any advice
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Old 09-18-2010, 12:00 PM   #11
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Quote:
Originally Posted by kenpoengineer View Post
Hi All,

I have a 2003 TJ 6 cylinder 4.0 engine Wrangler with 151k miles on it. The only thing I've replaced are brake pads, rear rotors, engine belt, battery and water pump/thermostat. It's almost winter time and I'd like to prepare for whatever. What is about to break and need replacement or repair? Thanks in advance.
If you still have your original radiator you're very lucky. The plastic on top usually cracks around 60K ( unless Jeep used better radiators in '03 than earlier TJ's)

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What some good fluids for the diffs.? And manual trans? I am think about changing them because I have over 200,000 miles on my jeep. any advice
A good fluid for your manual tranny is Redline MTL or MT90
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Old 09-20-2010, 07:27 AM   #12
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Thanks for the information so far. Will change fluids before winter.

Yes, the 2003 Jeep Wrangler Rubicon "has" rear brake rotors. Interesting buggers are they have regular outside brake pads and, onthe same assembly, inside drum style pads used for the emergency brake.

Regards

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