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Unread 03-04-2008, 07:09 AM   #1
norsky
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1999 XJ Cherokee 
 
Join Date: Feb 2008
Location: Cambridge, MN
Posts: 705
Noob To Forum and Noob w/ an XJ!

Hey guys, i have been lurking around this forum here for about a week and a half checking everything out. I must say there is a bunch of great info on this site. I just have a few noob questions about the 4.0.

First off I bought a 99 XJ Sport (White) 4dr 4.0 4x4. It is all stock and hope to get some pics uploaded here soon. It was actually fleet vehicle for a wireless company here in MN so I would imagine the service has been done routinely (i hope). Last weekend I did the spark plugs and wires and changed the oil and put in a K&N air filter (planning on getting a cold air intake in the future). The coolant looks pretty new, it is a nice bright green as the tranny fluid is clean as well.

1. What is typical oil pressure the 4.0 runs at? Mine runs right at 40 and just a little over when going down the highway. Is that normal?

2. The temp guage sits at 210 and doesnt get any hotter, is that the normal temp?

3. Is there anything I should be looking for underneath the vehicle on the 4wd system to make sure everything is okay? I would hate for some thing to happen to that!

This is not my DD, though i did drive it to work today, it is just better to drive than my 96 cutlass . Sorry for the long post.

Thanks!
MNJeep99

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Unread 03-04-2008, 07:31 AM   #2
CanadianJeep86
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1984  
 
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Location: Hastings Ont.
Posts: 923
yes that is normal oil pressure. The normal operating temperature for the 4.0L is 210.
And if you crawl underneath just check that the transfer case and both axles are full. It also wouldn't hurt to put a little lube on the transfer case shift linkage too. Maybe check your u-joints
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Unread 03-04-2008, 07:38 AM   #3
twinsdaddy24
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1998 XJ Cherokee 
 
Join Date: Dec 2007
Location: Indiana
Posts: 112
Welcome to the forum and congrats on the new Jeep! I would change the fluids in the front and rear diff as well as the transfercase. Its better to know the fluids are fresh than to wait for failure.

40psi at cruising speeds is normal and about 17-20 hot idle is normal.

210 is normal also on a warm day.

These Jeeps are really durable and will last darn near forever if you keep up the maintenance and treat it with a little respect.

Check the underside for leaks and if it drives out okay with no noises, dont worry about anything drivetrain wise.

Enjoy the new ride!
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Unread 03-04-2008, 07:44 AM   #4
norsky
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1999 XJ Cherokee 
 
Join Date: Feb 2008
Location: Cambridge, MN
Posts: 705
Thanks for the info and quick replies so far. Like I said, I am a complete noob on this stuff so i am sorry my questions are so lame, but I guess that is how you learn. Is it easy to change the fluids in the diffs and the txfr case? I have the access to all the tools I need, my father in law is a mechanic and has everything including a hoist.
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Unread 03-04-2008, 07:55 AM   #5
Jeep gal
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1999 XJ Cherokee 
 
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Location: Virginia
Posts: 151
That's the same jeep I have.

Do your power windows work from all locations?

How about your fog lights?

Is your battery original? If it is getting week or has dead cells it will give you some strange problems.



Welcome....
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Unread 03-04-2008, 08:02 AM   #6
norsky
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Quote:
Originally Posted by Jeep gal View Post
That's the same jeep I have.

Do your power windows work from all locations?

How about your fog lights?

Is your battery original? If it is getting week or has dead cells it will give you some strange problems.



Welcome....
Thanks, yeah from looking in your profile we do have the same one (my bumpers are even white too. I am not sure if I like it yet though, they might turn Black. My power windows do work from all locations for now. I have seen some threads on that so i am watching those. I dont have the stock fog lights installed, they must not have picked that option. My battery looks as it was replaced in March of 06, but is a stock Mopar battery. It seems to be holding up well for now as well.
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Unread 03-04-2008, 08:50 AM   #7
Doug_J
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Sounds like a solid Jeep, congratulations and have fun!
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Unread 03-04-2008, 08:53 AM   #8
cherokeeman90
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1998 XJ Cherokee 
 
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Location: wichita, KS
Posts: 370
jeeps run right at 210 temp level
your fine
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Unread 03-04-2008, 09:04 AM   #9
2k1XJ
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2001 XJ Cherokee 
 
Join Date: Jun 2006
Location: mesa AZ
Posts: 139
Welcome, Sounds like a nice xj, congrats, cant wait to see pics.
How many miles on her?
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Unread 03-04-2008, 09:11 AM   #10
norsky
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1999 XJ Cherokee 
 
Join Date: Feb 2008
Location: Cambridge, MN
Posts: 705
There is 130k on er. I have heard so many good things on these engines I wasn't to worried about it. I have a few buddies with the 97 XJ and they have had great luckk as my Dad also has a 95 XJ 2dr that is running like a top as well. I'll get some pics when I get home from work and throw them up on Photobucket. I should really just upgrade my account so I can just post pics in the forum since I know I will be on this site a bit.
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Unread 03-04-2008, 09:12 AM   #11
XJK
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1999 XJ Cherokee 
 
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Location: Santa Rosa, Ca
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welcome to the forum, look forward to seeing pictures of you jeep.

-Kyle
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Unread 03-04-2008, 09:13 AM   #12
SteveTheFolkie
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1994 YJ Wrangler 
 
Join Date: Sep 2007
Location: Pennsylvania
Posts: 165
Check your hard brake lines - the one going from the MC to the RF caliper let go on me last Saturday morning - it had rusted up pretty well and just blew out. Lucky for the Honda Fit in front of me I was able to get 'er stopped with the e-brake. It let loose at the 90 degree bend at the bottom of the run by the inner fender.

BOTH of the front hard brake lines were rusted - so I replaced them both - easy job and well worth doing for the peace of mind. I flushed my brake system while I was at it -

Curious, but the hard lines going to the back brakes were fine ...

They seem to be really durable vehicles. I bought a '98 XJ last September with 42,000 on the clock, have about 57,000 on it as of this morning - other than the brake lines the only thing I've done was to replace the original battery. (well, I've done 5 oil changes as well) -

Enjoy

Steve
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Unread 03-04-2008, 09:29 AM   #13
Sinzitu
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Posts: 163
Welcome aboard! Lot's of good info & folks on this forum. Another vote for seeing some pics.
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1994 XJ - 4.5" lift, 33x12.5 Super Swamper radials, etc...

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Is it done yet???
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Unread 03-04-2008, 09:46 AM   #14
Jamo33
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2002 TJ Wrangler 
 
Join Date: Feb 2008
Location: Ohio
Posts: 47
Quote:
Originally Posted by Jeep gal View Post
Do your power windows work from all locations?

Not to hijack the thread, but quick question on this. I just got a 2000 XJ Sport and the rear driver window does not go down from the driver door. However, if you use the switch on the rear passenger door, the window will go down, and THEN you can use the switch on the driver door. As soon as the engine is turned off and back on, you have to repeat the process. Also, same location, the rear passenger door does not lock or unlock with the power lock button, OR the remote key fob. What am I lookin' at here? Rusted harness connector? Bad wiring?
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Unread 03-04-2008, 09:54 AM   #15
Jeep gal
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I'd try cleaning all relevant contacts first.
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