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1990 XJ, Fuel problems.

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Old 08-12-2011, 12:17 PM   #1
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Default 1990 XJ, Fuel problems.

I am looking at buying a 1990 XJ with 213,XXX miles and a I6 4.0 engine. The PO says that the only existing problem is that it burns fuel like crazy! On 10 mile round trip to work he says he burns about 10$ of gas. Anyone run into this problem before? I am sure he would know if it was leaking, due to a puddle but his wife didn't say anything about that. Any help would be awesome!
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Old 08-12-2011, 12:24 PM   #2
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Go ahead and buy if you're getting a good deal. There are 100 things that can cause a Jeep to go through too much fuel. First go for the obvious. is it leaking anywhere from the motor back to the fuel tank? How long has it been since the Jeep had a tune-up and oil change? What kind of shape are the brakes and tires in as in it could have a brake(s) dragging or front end pieces could be worn causing front tires to be toed in or out and causing resistence.
Brian "Buck" Buchanan, U.S. Navy Chief Petty Officer (RETIRED) - 87 XJ Laredo, Ol' Red - 8.5" Rusty's Offroad/Rough Country lift, D30 trussed and D44 high clearance shock mounts, 4.56's, Aussies, Chromos and Disc Brakes front and rear, JCR Offroad Belly Skid Plate and Stage 2 Rock Sliders, Off Road Fab Winch Bumper and Quarter panel Guards, Liberal Front Wheel Well trimming and Rear Wheel Well Cut N Fold, 35" Goodyear MTR with Kevlars, Cobra CB and AW4 First Gear Lock Crawl switch, SYE, Stock XJ driveshafts front and rear and Milemarker SEC8000 Winch.

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Old 08-12-2011, 12:33 PM   #3
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Jeep is from Texas, rust free. BRAND NEW tires.

I had talked to his wife, so when i call him back around 5 I will be sure to ask him about the following:

Brake Rotors, Fuel filter, Leaks, Oil changes, Wires, Caps, and Plugs.


Just so you can see how clean it is. Yes, they listed it as a grand cherokee

EDIT: Just saw there is a slight puddle under the Jeep, near the front end. Know what could be leaking there?

Last edited by Yocornflake; 08-12-2011 at 12:35 PM.
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