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Unread 02-15-2003, 12:01 AM   #1
Junior Member
1998 ZJ 
Join Date: Dec 2002
Location: Queens, N.Y.
Posts: 79
To all u 5.9 owners

Im looking into buying a 98 Platinum 5.9 w/50,000 miles for $10995. Before I buy, i'd like to know if there is any major problems that i should know about it, concerning the powertrain, electrical system or anything else in general? Also what should i look for when i go test drive it? Ive inspected it on the lot and the truck is imaculate. The paint doesnt even have a single ding in it. The interior still has the new leather scent, the seats seem as though they were never sat on and the carpet shows no sign of wear. Ive always wanted this jeep, even before i bought my white one, so i want it to be a good one. I really dont care about the fuel consumption, cause im already payin alot for the 4.0L i have now.
Any input from you guys would be much appeciated. Thanx in advance.

1998 Platinum ZJ 5.9 Limited
K&N FIPK / MOPAR ECU / Bilstein Shocks / H&R springs / Addco sway bars
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Unread 02-15-2003, 03:32 AM   #2
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Join Date: Sep 2002
Location: Missouri
Posts: 62
Well, I dont have a 5.9, but I can give you this advice--It's a jeep, what do you expect? You will love and hate it. Just buy it and make it fast...thats what they were made for.
1994 ZJ
Built for the STREET--Get over it.
[b]Green Jeep Club Member #13[/b]
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Unread 02-15-2003, 10:47 AM   #3
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Join Date: Oct 2002
Posts: 124
The rear differential has been known to go out on 5.9's. Also, it should have the normal ZJ problems like htd seats, and the transmission failing around 100K-120K. Also, its QTrac so expect the Viscious Coupler to go bad nearing 100k. How do I know this? I read up alot on JeepsUnlimited before buying my 4.0
With such low mileage I would check the history, drive it, and buy it if everything checks out. Good find!
98 ZJ Limited I6
Kolak Ignition
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Unread 02-15-2003, 12:35 PM   #4
Swamp Boy
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1993 ZJ 
Join Date: Jan 2003
Location: New Orleans
Posts: 1,327
Make some sharp turn and check out the Cv's , Visually inspect the boots , they should not be torn.
Make sure everything works while you are driving adjust power mirrors and everyything else ..None of this would make me not buy it but It may drive the cost down..
As always listen to the motor shift manually so you can rev it higher that is where you will first hear engine wear.
Check the oil for metal flakes.. Check the tranny fluid (same thing)
Check for oild leaks (rear mains are known to go out. Listen to rear and front diff while driving .No groaning , Also as I am sure you know the rotors tend to warp pay close attention to the pedal when you are hitting the brakes to feel if it surges..Or the brakes squeal (sign that the rotors are warped)
Good luck .. Sorry for the long post buy I buy a lot of cars and I don't want to see a fellow jeeper screwed..
Just another soccer moms Grocery getter....
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Unread 02-16-2003, 12:15 PM   #5
Junior Member
1998 ZJ 
Join Date: Dec 2002
Location: Queens, N.Y.
Posts: 79
Thanx alot guys, you've been a great help

Need4Boost, you betcha ill make it fast, damn fast, but without compensating its off-road capabilities, of course.

Beachead19, i've already ran a report on its history, it turns out that the car was purchased new at the same dealer that is selling it to me and that i will be the second owner (thats if all goes well)

Swamp Boy, i'll be sure to look out for all the things you've considered and ill let u know how it went.

Thanx again
1998 Platinum ZJ 5.9 Limited
K&N FIPK / MOPAR ECU / Bilstein Shocks / H&R springs / Addco sway bars
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Unread 02-19-2003, 11:25 AM   #6
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Join Date: Dec 2002
Location: Concord, Ohio
Posts: 13
Jump on that deal NOW. That's a great price for that milage. I have owned my 5.9 since day one and just turned 49k on it. Actually, I had a four year lease and bought it out in October at $16k. Here's the problems I've had - Sunroof (3 times), rear wiper, rotors (you must upgrade these anyway), CV boots and rear hatch clasp. Most of these were covered under warranty. If it doesn't have the KN FIPK, you definitely want to throw one in - it's well worth the 265 bucks. I've also heard a lot about problems with the intake manfiold gasket, but I haven't experienced any problems with mine yet. Well, good luck and RUN back to the dealer now. 5.9's ROCK and you'll love flying past those neon coated mustangs with a big smile on your face.

98' Grand Cherokee 5.9 Limited
- Mopar ECU
- Kuhmo Ecsta STX Tires
- Roto-tec Cross/slotted rotors
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Unread 02-20-2003, 09:54 PM   #7
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Join Date: Jan 2003
Location: Texas
Posts: 25
I agree on the price. I just bought a deep slate one about a month ago. It had 43K on it, in great shape, and i paid $15,500 for it. The loan value on them is around 12,500, so for $11,000, i'd say you're getting a steal.
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Unread 02-21-2003, 07:00 AM   #8
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Join Date: Mar 2002
Location: Cape Canaveral, Florida
Posts: 355
CV's? Is that CV joints? Boots? Are any of these on that year GC?
-- Marcus
Cape Canaveral, Florida
2005 Jeep Grand Cherokee Laredo 4.7L
2005 Dodge Durango SLT 4.7L
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