Jeep people, halp!

Saeleofu

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#1
Right now I have a '96 Grand Cherokee Laredo with a freaking V8 in it. I want something that gets better gas mileage (currently getting 9-11, though with this weather it's been closer to 8). But I love my Jeep to bits and have fallen HARD for Jeeps (especially this week with the snow and shitty roads, OMG LOVE), so I still want a Jeep.

It's in pretty good condition, it has some minor body damage and the headliner is droopy. It runs well, and the only time it's ever failed to start is when the battery died, so it has a brand new battery. It has a check engine light that comes on intermittently, but I haven't got around to checking it yet to see what it's for (I honestly can't remember the last time I had a car that DIDN'T have a check engine light...my Intrigue and Caliber both did all the time, I'm pretty sure my Sable did most of the time). The only MAJOR thing that needs fixed is the left CV axle. It need the seal on the rear differential replaced, and I have the stuff to fix it, just haven't had the time/decent weather to do so yet. It also has enormous tires with no lift or spacers, so when you turn hard the tires bump the wheel wells and sound like death.

All that said...I'm wanting to trade it for a similar Jeep, but with a smaller engine. The only thing stopping me from taking this one on longer trips are the things I mentioned and the shitty gas mileage. I want something I can take on long trips (minimum 3-4 hours one way...cross-county would be fantastic). I'm willing to do minor repairs (like the axle) as long as it's not some mystery **** that will never get solved (like the coolant leak in my Intrigue...for anyone still curious about that, my brother put several hundred to a couple thousand dollars into it trying to fix it, and when he traded it in for his current car, it STILL leaked to some unknown location, even after the entire cooling system and intake manifold and gaskets were replaced).

So, what Jeep should I look for? I suppose I'll consider other similar vehicles, since if a CR-V fell into my lap I wouldn't complain.

Should I get the axle fixed before I try to trade in hopes of getting a better deal, or wait and use what I would have spent fixing it to fix whatever issues the next one might have?

And can someone please explain to me the xj and tj and whatever other letters thing again?

TIA!
 
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#2
11mpg is terrible, even for a V8 GC.

I'd bet you have something like an O2 sensor going and its running really rich.

The 4.0 is only slightly better on the mpg:
http://www.fueleconomy.gov/feg/Find.do?action=sbs&id=13206&id=13205



XJ= Cherokee
YJ= 95 and older Wrangler
TJ= 97 and newer Wrangler
KJ= older Liberties
ZJ= your GC

You're just not going to find much better mpg in a jeep until after 2010. An 03 Liberty with the 4cyl manual only did 22 where the GC is rated at 17 for the V8.
 

Saeleofu

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#3
I dunno, 16mpg looks pretty fantastic from here. That means a tank would last an entire month instead of just over 2 weeks (I don't live far from work, and don't drive much due to the broken axle).
 
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#4
16 is what your V8 should be getting.

Intermittent check engine? Wait til its on, then turn the key on and off 3 times, the odometer should read out the trouble code. Often impacts fuel economy.

CV joints- possible drag, efficiency loss.

Giant tires- especially Mud tires, bad efficiency. What size/ type are they?
 

meepitsmeagan

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#5
A manual 4 cylinder CJ, YJ, or TJ is going to get you the best gas milage. However, they are not as good in the snow and have a high risk of roll over. Also, lack of storage space and crumple room is a concern.

I would personally get the 4.0 in the XJ. Always. Always, always, always. Loveeee them. Problem is you won't be able to get somebody with an XJ to trade you for a ZJ. ;)
 

JacksonsMom

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#6
I loooveee My Jeep Patriot. I don't know a lot about cars, but I'm pretty certain this is the model I have.

http://www.fueleconomy.gov/feg/noframes/29678.shtml

http://www.edmunds.com/jeep/patriot/2010/

Anyway, I'm obsessed. Love my Jeep. It saved me once in a bad accident, it's not terribly expensive, it's spacious enough to feel like an SUV but it drives more like a car. It hasn't caused many issues, and been very dependable, it seems good on gas (to me) but I don't often drive super long distances. Very dog friendly too. Lots of space when you put back seats down. The air and heat have always worked amazingly.
 
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#7
The Patriot is pretty much a Caliber though. I think she already has a poor history with those.

How much would you want to spend on a replacement? It seems you've been bouncing around from problem car to problem car for a while.

One answer would be the newest Subaru you can afford. You wont get the big tires, so they're not so good in snow drifts and other deep snow, but they'll go pretty much any place that has seen a plow or car traffic to pack it down.
 

Jules

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#8
I don't think Jeeps and good gas mileage are supposed to go together. I have a wrangler with a small engine and still get shitty mpg.
 

Saeleofu

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#9
Wait til its on, then turn the key on and off 3 times, the odometer should read out the trouble code.
SERIOUSLY? That's awesome! I was waiting for my brother to loan me his OBDII scanner.


The Patriot is pretty much a Caliber though. I think she already has a poor history with those.
Yeah, this :p



Giant tires- especially Mud tires, bad efficiency. What size/ type are they?
I don't know, they were already on when I got them. They're enormous and I don't like them. They're great in snow, but combined with the leather seats, it makes it difficult for Logan to safely jump in the car.





How much would you want to spend on a replacement? It seems you've been bouncing around from problem car to problem car for a while.
Ideally straight trade, or trade plus a couple hundred dollars. This car has a couple minor issues, but I wouldn't call it a "problem car" like my last one was...I'd feel perfectly comfortable taking this one to a dog show once the axle is fixed (which should happen in the next 2 weeks).

Financing a car is NOT an option right now. That's what happens when you make $11,000 a year and have shitty credit :p


One answer would be the newest Subaru you can afford. You wont get the big tires, so they're not so good in snow drifts and other deep snow, but they'll go pretty much any place that has seen a plow or car traffic to pack it down.
I don't want the big tires. It doesn't typically snow THIS MUCH around here, and my Caliber and Intrigue and Sable and Taurus all did just fine in our typical snowfalls (okay, the Sable and the Taurus had a bit of trouble,but nothing some cat litter couldn't fix...the Caravan decided breaks were unnecessary and tried to kill me in the first snowfall). More important to me is space. I love the size of the Jeep I have now. If I really wanted to, it would fit crates set up, so it certainly fits folded crates.
 

Saeleofu

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#11
Two things. First its not a laredo, its a limited. Second the code thing totally worked and I got 12, 31 and 55. I'm going to google them now.
 

CharlieDog

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#12
Fix the axle and post it on CL looking for a straight trade for a '96 ZJ with the 4.0.

A LOT of Jeep guys like the 5.8 and with the tires it already has on there, plus if you throw in the diff gasket and perhaps a CV joint for the replacement, you should be able to get a straight trade for an IL6 (Inline Six, IE, the 4.0)

I get 22 mpg average, even with as much city driving as I do. The 02 Sensors play a HUGE role in gas mileage. More than you would thing.

I'm not familiar with those codes, but my Jeep always has the blasted CEL on these days. I think I've narrowed it down to a bad rear O2 sensor. Hopefully. The Cat (code P0420. I've come to hate those numbers) has been tested and is working correctly. Next step is replace the rear O2 sensor and fuel filter. It seems like mine is having a fuel delivery problem, causing it to run rich, kicking off the 420 code.

Before anyone tells me, spark plugs are working fine, no misfire, replaced upstream O2 sensor, checked all fuel injectors, fuel pressure is where it should be, ect ect ect

Actually, for the CL thing, you may be able to get a little bit of cash on top, though I wouldn't quite expect it, since it doesn't have a lift on it, and the wheels rub.
 

Saeleofu

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#13
I think my brother actually has the spacers for the wheels so I could throw those in too
 

CharlieDog

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#14
If you really want the ZJ with the 4.0, (And you do. I love mine. Wouldn't give it up for the world) I'd post it up on CL with everything you've got for it and see what kind of bites you get. Ignore the ones that say they have engine or transmission issues. Insist on test driving it. Insist on a mechanics inspection. Listen for grinding coming from the differentials. Though wheel hubs do go out and sound similar (and are WAY cheaper to fix).

It's a ZJ. Expect oil leaks. Expect possible diff leaks. Expect possibly rear main seal leaks. Expect possible valve cover gasket leaks. Look for all of that stuff. Crawl all over that b*tch like a monkey looking for problems. You don't want to trade a 5.8 for someone else's headache. There will probably be piston slap on a cold start. Mine has it, and will have it until I decide it's time to fix it :p (They come from the factory with that pre installed! :D ;) :p ) Check the coolant. Look for test strips at a parts store and test it to make sure it's correct. Coolant over time becomes acidic and will start eating the engine. Not a deal breaker, but it will tell you how much the vehicle has been cared for, though most people never even think about coolant changes unless there's something wrong with the coolant system. Though I think most people don't belong under their engines hood as it is :p Inspect the color of the brake fluid. Black means you'll need a brake flush and possibly new brakes and rotors. That's ALL MONEY you're putting into the car.

Check the color of the transmission fluid and oil. Dark red fluid is bad. Trans fluid hasn't been changed in a long time, so you'll have to put a new filter and change the trans fluid. Oil shouldn't be dark, especially if they're trying to sell/trade it. (I'm a terrible person and sometimes go 10k before an oil change, but I run Mobil One Advanced pure synthetic oil)

Honestly though, the 4.0 is a BOSS A*S engine. It does have it's problems, but it's arguably the best IL6/4.0 on the market. I'm not sure if the '96 ZJ's have a VIC OR a GDM (different types of displays/computers in front of the shifter) but you want the GDM. The VIC is a b*tchy mother f*cker, and they're holy hell to get out. The GDM just has a picture of the jeep and words telling you if your in part time, full time or 4 low drive.



As far as the other car with the coolant leak, have you checked the freeze plugs?
 

CharlieDog

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#15
Also, I forgot to ask, the only Limited I know is only rear wheel drive. Is yours a 4x4?

If not, you can probably expect to pay money for getting that 4x4 badge. :/
 
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#16
Diesel...that is all. Not only does she get fantastic fuel mileage I can tow as much or more then most half tonne pick ups. I have a 2008.5 grand Cherokee, there are also liberty that were made before mine, and they are selling new ones with diesels again.
 
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#17
16 is what your V8 should be getting.

Intermittent check engine? Wait til its on, then turn the key on and off 3 times, the odometer should read out the trouble code. Often impacts fuel economy.

CV joints- possible drag, efficiency loss.

Giant tires- especially Mud tires, bad efficiency. What size/ type are they?
Will this work in my 2008.5 as well?
 

CharlieDog

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#18
Also, these two threads should be in your Jeep bible. Because we all know what Jeep stands for (Just Empty Every Pocket)

http://www.jeepforum.com/forum/f13/common-zj-problems-tutorial-how-fix-them-1432264/

http://www.jeepforum.com/forum/f13/12-things-you-can-do-when-your-zj-stalls-1407423/

Also, JeepForum.com will be your best friend. I've rebuilt a wiper motor using nothing but a write up/thread from that forum. (Didn't fix the problem, ended up being an electrical issue that I wasn't equipped to fix) but I REBUILT A WIPER MOTOR. WHOO HOO!
 

CharlieDog

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#19
Relative to two of your codes, the 12 and 55

http://www.jeepforum.com/forum/f9/w...ean-completion-fault-code-display-cel-893583/

trouble code 31

http://www.cherokeeforum.com/f2/trouble-code-31-question-135405/


From what I've found about trouble code 31, check your gas cap first, make sure it's screwed on tightly, if it is, replace it.

Also, go to any parts store. They'll have an OBDII reader and can give you a more complete code. For free. With a print out. Don't buy anything from them unless you were already planning on it. They're 8 dollar an hour guys with a fifty dollar part telling you what the codes are, NOT what's wrong with your Jeep. My P0420 code they tried to sell me a new Catalytic Converter. The Cat's been tested. It's working fine.

They're not mechanics. Their only job is to sell you parts.

The codes from the scanner will give you a more complete picture. If you have access to a code reader (after you've had them checked at a parts store) you can clear out the trouble code 12 and 55. Those don't seem to mean anything. 31 means you have an EVAP problem, but not WHERE or WHAT is leaking. Get a bottle of soapy water and spray all your hoses in the engine compartment. With the engine running under a load (Lights, heater on high, ect) look for bubbles on each hose. If you find one, you've got a vacuum leak. Replace the hose. That is, if replacing the gas cap didn't clear that trouble code. Still a good idea to check the hoses though anyway. I had a vacuum leak for a long time that never kicked off a code.
 

Saeleofu

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#20
The GDM just has a picture of the jeep and words telling you if your in part time, full time or 4 low drive.
I think that's what I have.

Also, I forgot to ask, the only Limited I know is only rear wheel drive. Is yours a 4x4?

If not, you can probably expect to pay money for getting that 4x4 badge. :/
It is a 4x4. It's a limited based on its VIN number. So if those two don't go together I don't know WTF is going on lol


As far as the other car with the coolant leak, have you checked the freeze plugs?
That car is GONE GONE GONE so I don't care anymore lol.



The rest I'm still catching up with reading :p
 

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