AuthorTopic: WJ Engine Reliability  (Read 3101 times)

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Offline El Hair

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WJ Engine Reliability
« on: December 18, 2008, 22:20:20 »
Looking to get a 4x4 soon. I'm really keen on getting a WJ GC, but am curious about engine reliability.

Given that the car could be around 10yrs old and have some 100K on the clock, what would be the expected lifespan on the engine? At the risk of being näive, some engines must last longer than others. So, what's the verdict?
I reject your reality and substitute my own.

Was: 1999 Jeep Grand Cherokee (WJ) 4.7L V8
Now: 1983 Land Rover Series III 88" 2.25L

Offline Popoff

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Re: WJ Engine Reliability
« Reply #1 on: December 18, 2008, 22:36:56 »
hi mate, have a look on this US site may be of sone help :lol: http://www.jeepsunlimited.com/forums/forumdisplay.php?f=180
98 Fourtrak TDL with just mt's fitted (now for sale)
02 Grand Cherokee 4.7 V8 Overland (255bhp & 17mpg)!! Cooper STT's OME 2" lift and Winch

This WJ's NOT on the school run!

(Sorry about the spelling)!

Offline offroading.net

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Re: WJ Engine Reliability
« Reply #2 on: December 18, 2008, 22:37:02 »
bought one 2 years ago with 100k on the clock, now has 145k and doing fine, regular oil & filter changes and they do 200k plus (talking 4litre inline 6 here)
Steve Wright 


 
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My 110 Rebuild  gone but not forgotten  :(

Offline Bishops Finger

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Re: WJ Engine Reliability
« Reply #3 on: December 18, 2008, 22:47:53 »
Jeep I6 will last a while..
Jeep drivers don't eat quiche

Offline El Hair

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Re: WJ Engine Reliability
« Reply #4 on: December 18, 2008, 22:58:26 »
Thanks for the link Popoff, it's helped a lot.

Looking through what some people have it would appear that I should expect to get a good 150K+. However, this would obvioulsy assume it's not been ragged senseless. Even so, it's good to see that they should last a while.

IL6 appears to be 'better' then the V8. Would this be the consensus?
I reject your reality and substitute my own.

Was: 1999 Jeep Grand Cherokee (WJ) 4.7L V8
Now: 1983 Land Rover Series III 88" 2.25L

Offline offroading.net

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Re: WJ Engine Reliability
« Reply #5 on: December 19, 2008, 10:01:39 »
I-6 is the best enging in the WJ IMHO, very reliable
Steve Wright 


 
steve@offroading.net

My 110 Rebuild  gone but not forgotten  :(

Offline Popoff

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Re: WJ Engine Reliability
« Reply #6 on: December 19, 2008, 23:45:42 »
V8 all the way mate :D go on have some fun  :dance: :lol: :lol:
98 Fourtrak TDL with just mt's fitted (now for sale)
02 Grand Cherokee 4.7 V8 Overland (255bhp & 17mpg)!! Cooper STT's OME 2" lift and Winch

This WJ's NOT on the school run!

(Sorry about the spelling)!

Offline J66P

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Re: WJ Engine Reliability
« Reply #7 on: December 19, 2008, 23:52:20 »
I have a 4 litre but the next will be the v8 for sure
Jeep Cherokee Ltd 4 litre on LPG, 4"+ lift, JKS Quick Disconnects, R/C Shockers, Insa Sahara's, Rusty's Engine and Transmission Skid, Warn Transfer Case Guard, Safari Snorkel, Safari Rack with HiLift Jack, Aussie rear locker, Power trax Front Locker, Hayden Tranny Cooler



SJ413, 3"lift, 6 point roll cage, Power Steered, 12000lbs winch, SU carb conversion, BFG MT's, Rear disc

Offline El Hair

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Re: WJ Engine Reliability
« Reply #8 on: December 20, 2008, 13:56:00 »
Thanks for all the advice fellas. All I need to do now is get me' Jeep.
I reject your reality and substitute my own.

Was: 1999 Jeep Grand Cherokee (WJ) 4.7L V8
Now: 1983 Land Rover Series III 88" 2.25L

Offline Popoff

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Re: WJ Engine Reliability
« Reply #9 on: December 20, 2008, 17:37:06 »
Be good to have another WJ on the forum :clap: if you get the 4.0l you will always be thinking, should have had a proper one with a V8 ;) :lol: :lol: :lol:
98 Fourtrak TDL with just mt's fitted (now for sale)
02 Grand Cherokee 4.7 V8 Overland (255bhp & 17mpg)!! Cooper STT's OME 2" lift and Winch

This WJ's NOT on the school run!

(Sorry about the spelling)!

Offline The Smiths

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Re: WJ Engine Reliability
« Reply #10 on: December 20, 2008, 19:23:39 »
The V8 comes with better axles as well ;) - the axles go more often than the engines
If you always do what you have always done.
You will always get what you have always had.

Offline Bishops Finger

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Re: WJ Engine Reliability
« Reply #11 on: December 20, 2008, 23:11:39 »
Which Danas are in the V8 ?
Jeep drivers don't eat quiche

Offline Popoff

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Re: WJ Engine Reliability
« Reply #12 on: December 20, 2008, 23:41:07 »
Which Danas are in the V8 ?

44's I think  :-k
98 Fourtrak TDL with just mt's fitted (now for sale)
02 Grand Cherokee 4.7 V8 Overland (255bhp & 17mpg)!! Cooper STT's OME 2" lift and Winch

This WJ's NOT on the school run!

(Sorry about the spelling)!

Offline The Smiths

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Re: WJ Engine Reliability
« Reply #13 on: December 21, 2008, 00:26:59 »
Yep - the better ones :D
If you always do what you have always done.
You will always get what you have always had.

Offline El Hair

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Re: WJ Engine Reliability
« Reply #14 on: December 21, 2008, 12:32:11 »
Ah, the Dana type! That's another thing I'd need to know, but was going to leave that until later. Still, with a vague idea now at least I can look at prices of protection.

According to http://www.jpmagazine.com/featuredvehicles/154_0706_1993_2004_jeep_grand_cherokee/index.html the axle config is "...Dana 30 up front and the aluminum centersection Dana 44 out back..."

Once again, thanks for all the advice and here's to the New Year and a new toy. Watch out Surrey and Hampshire!  :dance:
I reject your reality and substitute my own.

Was: 1999 Jeep Grand Cherokee (WJ) 4.7L V8
Now: 1983 Land Rover Series III 88" 2.25L

Offline Popoff

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Re: WJ Engine Reliability
« Reply #15 on: December 21, 2008, 21:35:53 »
Have a look on this site too: http://www.wjjeeps.com/service/maintenance_wj.htm has some good info  ;)
98 Fourtrak TDL with just mt's fitted (now for sale)
02 Grand Cherokee 4.7 V8 Overland (255bhp & 17mpg)!! Cooper STT's OME 2" lift and Winch

This WJ's NOT on the school run!

(Sorry about the spelling)!

Offline Bishops Finger

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Re: WJ Engine Reliability
« Reply #16 on: December 22, 2008, 12:45:42 »
There's also NAGCA
Jeep drivers don't eat quiche

Offline offroading.net

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Re: WJ Engine Reliability
« Reply #17 on: January 03, 2009, 19:32:22 »
Which Danas are in the V8 ?

44's I think  :-k

Same on all models 30 up front, ally housed 44 in the rear, only difference is the quadra drive ones have vari-lok LSDs in them (not all v8's are quadra drive tho)
Steve Wright 


 
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My 110 Rebuild  gone but not forgotten  :(

Offline El Hair

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Re: WJ Engine Reliability
« Reply #18 on: January 05, 2009, 13:45:38 »
Ah, that's good to know; 30 up front, and 44 out back.

I now have a '99 WJ (Quadra-Trac II) - check out my photos in the gallery.
I reject your reality and substitute my own.

Was: 1999 Jeep Grand Cherokee (WJ) 4.7L V8
Now: 1983 Land Rover Series III 88" 2.25L

Offline offroading.net

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Re: WJ Engine Reliability
« Reply #19 on: January 05, 2009, 20:45:07 »
Looks good, fancy a WJ to replace my XJ one day (might get the wifeys when she gets bored of it)
Steve Wright 


 
steve@offroading.net

My 110 Rebuild  gone but not forgotten  :(