-98 ZJ questions - Please bear with a newbie - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 22 Old 07-05-2011, 02:11 AM Thread Starter
Bale
Registered User
1998 ZJ 
 
Join Date: Jul 2011
Location: Jeep Heaven
Posts: 87
-98 ZJ questions - Please bear with a newbie

Just bought a -98 ZJ Grand Cherokee Ltd 4L, 120000 miles, and have a few questions for the initiated:

- A/C doesn't work. Circuit breakers are OK. A common problem? Expensive?

- "Humming" noise from the rear, varies with speed, more when accelerating than when coasting. Rear diff worn? Breakdown imminent?

- Muted "howling" noise from the gearbox when in first gear. To be expected, or somethig wrong?

- Radio antenna broken. Originally electric (motor) antenna? Easy to replace?

- Driver seat heating kaputt. Any tips?

- Wobbly steering. Where to start to firm it up?

- Ambient temperature reading on the overhead display always reads zero degrees. Broken temperature sensor? How to fix?

Some of this has probably been discussed before, but please bear with a newcomer in the Jeep universe. Any tips/pointers are greatly appreciated.


1998 ZG (ZJ) Grand Cherokee Ltd, 4L 4x4
Bale is offline  
Sponsored Links
Advertisement
 
post #2 of 22 Old 07-05-2011, 05:52 AM
melk
Registered User
1996 ZJ 
 
Join Date: Sep 2009
Location: Charlotte
Posts: 2,890
Welcome! You've picked a wonderful first Jeep. A handful of problems, likely nothing too serious, but plenty to keep you busy

Do you have any junkyards where you can pull parts off other Jeeps? That's the most common solution for finding/fixing parts here stateside. Your radio antenna, temp sensor, possibly heated seat wiring. I'd just remove the seat (a couple bolts) and check the wiring first.

Start changing fluids. Engine oil, tranny and filter, transfer case, front & rear diffs.

I'm not too familiar with the AC system but I'm sure someone else can give you solid info there.

Wobbly steering: Start replacing all the rubber bushings on everything. Crawl under your jeep and get real familiar with where things are. Check for play/looseness. Find out if you have CV joints or U joints.

Good luck
melk is offline  
post #3 of 22 Old 07-05-2011, 06:22 AM Thread Starter
Bale
Registered User
1998 ZJ 
 
Join Date: Jul 2011
Location: Jeep Heaven
Posts: 87
Thanks, melk!

Really enjoy the car so far, despite these few questionmarks. Won't be used a whole lot, mostly to tow a heavy horse trailer. 4WD and high ground clearance is the main reason I got it, and since large gas guzzlers are not in vogue around here it fits the bill at a very reasonable price.

MPG is not a big issue since it won't be used a lot (although I find myself driving it more than I should because it's so much fun! And the macho factor...!).

The most immediate problem, the dead A/C is being fixed in a local shop right now. The car gets really hot without it, with black leather interior and all..

Will take care of the other issues in order of priority. Comments on my other questions are still very welcome.

1998 ZG (ZJ) Grand Cherokee Ltd, 4L 4x4
Bale is offline  
post #4 of 22 Old 07-06-2011, 07:09 PM
NickZJ
Registered User
1997 ZJ 
 
Join Date: May 2011
Location: Ottawa
Posts: 30
That A/C could get expensive it could be a compresor or just leaky ac line or something, unfortionitly you will need to take it to a shop to get them to fix and fill it. A/C can be kind of dangerous work seeing as the lines are under so much pressure.

But have you already had a safety inspection done? Because they should of checked your front end like ball joints and tie rod ends for play already. If not id check them first but it could likely be the steering box, my old mans XJ has the same loose feeling front ends it scares the sh*t out of me because i am not used to it. You may need to replace it or you may be able to adjust that out

Paved roads don't lead anywhere worth going
NickZJ is offline  
post #5 of 22 Old 07-07-2011, 12:13 AM Thread Starter
Bale
Registered User
1998 ZJ 
 
Join Date: Jul 2011
Location: Jeep Heaven
Posts: 87
It's already in the shop for A/C repair. They say it needs some new plumbing, and thankfully the cost is not outrageous.

The car was extensively checked last fall, and that was a major reason I chose this particular car. With the test report I at least knew what I was buying.

Firming up the steering will probably be the next on my list of repairs. This one is not very bad, though. I tested a few Jeeps lately, and the steering on some of them was just plain scary!

Thanks for the tips!

1998 ZG (ZJ) Grand Cherokee Ltd, 4L 4x4
Bale is offline  
post #6 of 22 Old 07-07-2011, 10:53 AM
tcar
Registered User
2000 WJ 
 
Join Date: Sep 2007
Posts: 855
You don't have a gearbox... you have a 44RE auto tranny.

Could the noise be coming from the transfer case (right by the tranny)? Which one do you have (what does it show on the case shifter)? Limited usually had a 249 (3 position 4HI N 4LO).

Antenna, if it makes noise you just need a new shaft with toothed drive. They're inexpensive on Ebay, with instructions on how to change the shaft (60 second job).

Seat heating is common (never kneel on the seat). Do a search, it's fixable; there's a broken wire in the element. Do a search (go to top line; "Search this Forum", when on the main menu.)

Loose steering... take it to a good 4WD suspension/alignment shop. BEFORE you start replacing stuff, it may have nothing to do with bushings. It could be dangerous.

Oh, you don't say... it IS 4WD or AWD, not 2WD, isn't it?

Go out NOW and get a Haynes Manual to help you fix stuff. The temp sensor for the OH CONSOLE is by the radiator.

00 Limited 4.7 V8 SelecTrac
94 Limited V8 SelecTrac
98 5.9 Platinum
95 Limited V8
tcar is offline  
post #7 of 22 Old 07-08-2011, 12:08 AM Thread Starter
Bale
Registered User
1998 ZJ 
 
Join Date: Jul 2011
Location: Jeep Heaven
Posts: 87
Thanks a lot!

Yes, it's a 4X4, and the case shifter has three positions (4HI N 4LO), so I guess it's a 249.

1998 ZG (ZJ) Grand Cherokee Ltd, 4L 4x4
Bale is offline  
post #8 of 22 Old 07-08-2011, 01:59 AM
ratmonkey
R.I.P.
 
ratmonkey's Avatar
1997 ZJ 
 
Join Date: Dec 2006
Posts: 19,793
A heavy horse trailer? I know my uncles two horse trailer is way over a grand cherokees tow capacity.

'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

ratmonkey is offline  
post #9 of 22 Old 07-08-2011, 04:22 AM Thread Starter
Bale
Registered User
1998 ZJ 
 
Join Date: Jul 2011
Location: Jeep Heaven
Posts: 87
It's a two horse trailer. Total weight typically around 3400 lbs (Icelandic horses; popular breed in these parts). Maybe not a "heavy" horse trailer by US standards

The car is approved for 7700 lbs trailers. Shouldn't be a problem, i hope, but haven't tested it yet.

1998 ZG (ZJ) Grand Cherokee Ltd, 4L 4x4
Bale is offline  
post #10 of 22 Old 07-08-2011, 02:35 PM
Dodgeram1989
Registered User
1976 FSJ Cherokee 
 
Join Date: Jan 2011
Location: Des Moines
Posts: 347
7700Lbs behind a ZJ?? That doesn't sound like a good idea. I could have sworn it was 5000Lb limit

97 ZJ - Stock again
1976 Chief AMC 360 6 in lift, 35 inch tires

Dodgeram1989 is offline  
post #11 of 22 Old 07-08-2011, 02:40 PM
KingtheZJ
Registered User
1998 ZJ 
 
Join Date: Nov 2009
Location: Rochester NY
Posts: 2,660
V8 is 6500 lbs
i6 is 5000 lbs

i have pulled 5k with the v8. it wasnt too bad. i would say 3500 would be pushing it for the six.

'88 XJ
'98 ZJ on 37s and tons
'02 Chevy 2500HD 8.1
KingtheZJ is offline  
post #12 of 22 Old 07-09-2011, 03:45 PM Thread Starter
Bale
Registered User
1998 ZJ 
 
Join Date: Jul 2011
Location: Jeep Heaven
Posts: 87
In Norway the I6 is approved for 3500 kg trailers, i.e around 7700 lbs.

How these limits are determined I have no clue. Many 4L XJ Cherokees around here are for some reason approved for only 3500 lbs.

1998 ZG (ZJ) Grand Cherokee Ltd, 4L 4x4
Bale is offline  
post #13 of 22 Old 07-09-2011, 10:52 PM
Katesdad
Registered User
 
Katesdad's Avatar
 
Join Date: Nov 2006
Location: Complete
Posts: 1,772
Rear humming noise could be a replacement muffler. At highway speed turn off overdrive if rpms go up and noise quits its just muffler cause the driveshaft will stay constant at the same speed. If you still have it its the rear end. Inspect pinion bearing and axle bearings first.
Katesdad is offline  
post #14 of 22 Old 07-10-2011, 11:58 PM Thread Starter
Bale
Registered User
1998 ZJ 
 
Join Date: Jul 2011
Location: Jeep Heaven
Posts: 87
Thanks, Katesdad!

By your description it's definitely the rear end. The sound stays the same even when coasting with the transmission i neutral. At hwy speeds it's the dominant noise. Tiring after a while, and probably not doing any good for the transmission. Will have it fixed before too long.

The dead A/C, by the way, was just a leaking pipe under the hood. Not too expensive, and it works great now. Crossing my fingers that it will hold the charge.

1998 ZG (ZJ) Grand Cherokee Ltd, 4L 4x4
Bale is offline  
post #15 of 22 Old 07-11-2011, 02:05 AM
Candymancan
Registered User
1998 ZJ 
 
Join Date: Aug 2010
Location: Virginia
Posts: 5,331
Well i dont know if i can input much in this but i'll give it a whirl..

For one you have a 42RE not a 44re tcar said (he just mistyped i guess), the wobbling in the steering could be severly worn out wheel bearing or something. I would bring it to a shop and have the alignment checked out and have them check the ball joints and stuff to find out why its wobbly..

Not sure on the howling noise the transmission/transfercase is doing. Maybe low on fluid, check all the fluid levels. As for the rear end if your hearing howling back there most likely some kind of bearing is going bad, and it takes awhile before these things "blow up" as you say. So that IMO would be a low priority to fix.

Also since this is a 98 grand cherokee it most likely doesnt have a aux tranny cooler, and since this is a 4.0 with the weak 42re i wouldnt be towing anymore then 3500lbs if it were me, i've heared some really nasty stories with people who towed 5k pounds with a 4 liter and ended up with a dead transmission. I'd only consider 5k if i had a 5.2 or 5.9. Personally i dont think ZJ's were really ment to tow heavy loads anyway.. If you want to tow a horse trailer get a dodge ram pickup or something, diesels can tow like 10-14k pounds

2013 6.2 V8 Camaro SS 30k
98 5.9 V8 ZJ 180k
98 4.0 I6 ZJ 240k
90 5.9 SJ Grand Wagoneer 110k
Candymancan is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Newbie 249-> 242 questions Darman ZJ Grand Cherokee Forum 4 02-05-2011 04:40 PM
newbie with questions 96850_R ZJ Grand Cherokee Forum 16 03-09-2008 12:42 AM
Newbie with some questions tp2txh ZJ Grand Cherokee Forum 26 07-07-2006 04:41 PM
newbie has questions 94 greenmachine ZJ Grand Cherokee Forum 2 03-14-2006 05:00 PM
newbie have questions??? 93jeep_20 ZJ Grand Cherokee Forum 6 05-10-2004 01:21 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome