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Old 02-08-2009, 04:54 PM
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What should I look for when buying a YJ

I am new to jeeps and would like to buy a YJ to use as a daily driver. What should I know about them when looking at purchasing one? How does the 4cly compare to the 6cly? How does the manual transmission hold up compared to the automatic? Any parts or areas of a YJ that are prone to problems that I can watch out for?

Thanks

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Old 02-08-2009, 05:05 PM   #2
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Uh the floor boards are prone to rust under the carpet, along with the front pumpstops. My factory 87 5spd trans in my 4.2 I6 is just as good as it was when it came out of the plant altho I take care of my jeep and fix things when I should not when I have time. But yeah just the normal rust on the floor boards and the rear section of the frame

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Old 02-08-2009, 05:16 PM   #3
 
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The frame behind the bumper near and around the tow hook holes is proned to rust. Be careful this portion of the frame can be partially covered by the black plastic JEEP filler. As 87YJ said the rockers and floor boards are a must inspect. I like to buy my toys before they are upgraded. Usually this means they were not treated the way I intend before I bought them. The con to this is you can save alot of moolah by buying a jeep with gears, lift, wheels, tires, bumpers etc. already upgraded. If you are not a mechanic you should have the vehicle inspected by a shop that you trust before purchasing it. There are many things a good mechanic can check that we may not mention in a thousand posts. I prefer the stick, but there is advantages to automatics. One thing about the automatic that is limiting is its lack of overdrive which totally kills highway mpg, and it isnt quite as tough as the stick. I would reccomend the 4.0, I had a 2.5 and loved it but was feeling it lacked only one thing, "More Power". I bought my 4.0 and have been runnin around with a semi ever since.
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Old 02-08-2009, 05:45 PM   #4
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all good advice, also check the inside of the rocker panels for rust, and windsheild frame. the 4.0 is just much more enjoyable, the 4 banger has a weak manual trans, and even though 87yj's trans is holding up, the manual trans before 1990 is not so good.
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Old 02-09-2009, 07:31 PM   #5
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mine has a little rust by where the roll cage meets the floor. If you can try to look under the carpets. Also the tailgates tend to rust. I have the 2.5 but if you have the option go with the 4.0 I've never owned, just driven and they have WAY more power. Hope that helps
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Old 02-09-2009, 07:44 PM
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A lot of the jeeps I'm looking at in my price range are starting to get some miles on them 100K+

What type of life span are you guys seeing on these 4.0L engines? Also what about life span on the automatic transmissions for the 4.0L?
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Old 02-09-2009, 08:08 PM   #7
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any 4.0 driveline will absolutely last forever if mantained well.
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Old 02-09-2009, 08:11 PM   #8
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the 6 cyl engines are fantastic they run damn near forever. the cj7 has 150K on the clock, the yj has 125K, my husbands old tj had 110K when he traded it in, and the ZJ has 209K miles and still runs like a champ the tranny needs to be swapped though).
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Old 02-09-2009, 09:06 PM
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Thanks guys for all the info. I'm convinced now that I want a 4.0L.
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Old 02-09-2009, 09:26 PM   #10
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Thanks guys for all the info. I'm convinced now that I want a 4.0L TJ.
Fixed it for ya.

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Old 02-09-2009, 09:43 PM   #11
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Thanks guys for all the info. I'm convinced now that I would never own a tj.
that looks better
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Old 02-10-2009, 06:49 AM   #12
 
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Thanks guys for all the info. I'm convinced now that I want a 4.0L.
I'm a YJ owner but I think if I get a good deal on a TJ anytime soon I may be buying it. I love my YJ but I think that there is advantages to coil over spring technology.
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Old 02-10-2009, 11:11 PM   #13
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I got a 4.2 and I got 160k and tickin
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Old 02-11-2009, 12:55 PM   #14
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Go ahead and bash the 2.5 yj. I'll defend them to the end. Mine has been an absolute great vehicle.
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Old 02-11-2009, 07:57 PM   #15
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Im not bashin the 2.5 I just like to have power when I want it not have to wait for the Squrells to wake up
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98% of people when they are about to go into the ditch say "oh shit!" The other 2% are Minnesotans and when we are about to go into a ditch we say "Hold my beer and watch this shit!"
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Old 02-11-2009, 08:01 PM   #16
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Go ahead and bash the 2.5 yj. I'll defend them to the end. Mine has been an absolute great vehicle.

the 4 banger is a great work horse. it will run forever without complaining. the only reason people don't like it is the lack of power on the street. and it doesn't get any better mpg than the 4.0 so when someone is buying one, it usually isn't a big price difference to go 4.0

still nothing wrong with the 4 banger. now the newer 4 bangers with the neon/minivan 2.4, thats another story. lets take a crappy motor, that is known for head gasket and cam seal leaks among many other things, and use it in a jeep. good idea.
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Old 03-17-2012, 01:57 AM   #17
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Anyone else like to add onto this old post... I'm hopefully taking home a YJ tomorrow.
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Old 03-17-2012, 01:58 AM   #18
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Can anyone put a list together?
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Old 03-17-2012, 05:42 AM   #19
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94 and 95 yj with the 4.0 have the ax15 with external slave for the clutch, much easier to fix on the trail.
It would depend on what you plan to do with your jeep when you get it and how far you plan to go on the modifications. heres a list to start out with.....
Windshield frame rust
Front floor board rust
Rust at fender and rocker flair attaching points
Rust at bumpstops, if they are still there!
Rust in frame at drivers side at the front of rear leafspring mounting points(by the fuel filter)
Rust in skid plate and skid plate mounting location to the frame.
Any oil leaks as they could be the most expensive to fix.
Check wiring harness for being hacked up, dry rotted and split wiring.
Check vacuum lines for dry rot and splitting.
Check drive shafts for slop in rear ends and u-joints also the slip yoke.
Make sure 4 wheel drive is operating properly.
Before purchase, drive it until it warms up properly. Make sure there are no popping, banging, clanking noises that don't belong!
I am sure I missed a few things others can add in. I have owned my 94 since 95 and it has been a continuing project since I purchased it. I off road any chance I get to.
If you can find one that has not been used off road alot that would be a good starting point. Jeeps have alot off aftermarket support and are easy to work on if you can't find the part you are looking for depending on your skill set you can probably make it!
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Old 03-17-2012, 05:56 AM   #20
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Quote:
Originally Posted by GreenMachine79 View Post
A lot of the jeeps I'm looking at in my price range are starting to get some miles on them 100K+

What type of life span are you guys seeing on these 4.0L engines? Also what about life span on the automatic transmissions for the 4.0L?

300,000 is not unheard of, almost commonplace.

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