My 04 Jeep Grand Cherokee V6 4wd is only averages 6 mpg what could b the problem..

Asked by Jhonfredy12 Feb 05, 2014 at 02:30 PM about the 2004 Jeep Grand Cherokee Columbia Edition 4WD

Question type: Maintenance & Repair

Just had a tune up about 3 months ago.

2 Answers
44,995

tuff4x4 answered 10 years ago

Are you running factory size tires? Was air, fuel filter changed? Correct tire pressure?

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135

Robert answered 8 years ago

Check your miles odometer when you park the car. Then check the odometer when you get back in the car, they should match. Just saying. Some one may be using it while you are away. Also make sure you have no leaks. Does your service engine light come on, then go out after a while. If so your oxygen sensor may be bad.

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