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2003 Jeep Grand Cherokee has 200k+ miles, has new tires all around and new rear shocks. Problem is: when you are driving at moderate highway speeds as I press and release the accelorator pedal the GC wonders(darts) from side to side -kind of feels like the rear end is causing it to chang direction. Does not feel stable or safe. Feels like driveing a sail boat. Any ideas as to what would be causing this condition?

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At over 200k, things that haven't been replaced are in dire need of it now. Possibilities include any link in the steering system, including the steering box. Also, have the tow-in checked. Were your old tires wearing funny (Wearing on one side of each steering tire)?

Posted on Nov 28, 2013

Testimonial: "In answering to as if the tireswere wearing funny? No, all tires showed normal even wear."

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You'll need to check the trailing arm bushes for excessive movement, the tyre condition / pressures and the tracking of the vehicle. Sounds as if there is uneven movement in the rear axle.

Posted on Nov 28, 2013

Testimonial: "The point you made as to check the trailing arm bushes (I assume you meant bushings?). Would these be the same as lower rear ssuspension arms? I would have a tendency to beleive that there is uneven movement in the rear axle. As when this "darting or wondering" occurs it does indeed feel like it is coming from behind. Thanks for your thoughts. I will keep you'll updated as to further progress as time allows."

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SOURCE: 94 jeep grand cherokee laredo power steering

so what is the question here?

Posted on Apr 27, 2014

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if frisky you can read the fSM for that.
or use google, ever use google,.????? amazing my 1st hit
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http://www.jeepforum.com/forum/f67/rear-shock-bolt-torque-954751/#post9025080

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My Answer:

Poor gas mileage can be a result of many many things.

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Not sure what engine you have as to options, etc?

How you drive will greatly change that number up or down depending on a number of driving and driver variables.

A few being -

Driving habits?

Tire pressures?

Engine tuned up?

Lube & oil/filter changes (every 5,000-7,500 miles? Air filter changes (every 10,000-15,000 miles)? Read your auto manual for exact recommended intervals.

How many people in the SUV on average?

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Type gas you are burning - BRAND? (See injectors below)

Area you are driving in (hills and valleys verses flat out,
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Jeeps in general don't have a good track record for great mileage, and rough engine idling is always a clue that your fuel injectors are dirty. Typical on all Jeeps with port fuel injection systems! On Jeeps with dirty fuel injectors your mileage will go way down accordingly. If your not putting at least a 12 oz bottle of say Walmart brand Super Tech Fuel Injector Cleaner (~ $1 each) in your gas tank religiously every logged 1000 miles, or every 2 tank fill ups, then you are just inviting dirty fuel injectors and POOR fuel economy!

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Hope that helps ease your mind about gas mileage as it relates to your Jeep there.

Frank


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