Only getting 8.5 mpg in my 98 4.0L - Jeep Wrangler Forum


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Old 10-01-2016, 02:38 PM   #1
yelrdog13
yelrdog13
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Join Date Oct 2016
Location: Northern California
Posts: 2
Default Only getting 8.5 mpg in my 98 4.0L

I have a stock 98 TJ 4.0L automatic, AC and I am only getting 8.5 mile per gallon on the steet. I have stock tires (psi ok ) and wheels, stock gears.

I have replaced the cat,both O2 sensors,and muffler

replaced the cap, rotor, wires, plugs , TPS,

air filter, oil change, new AC unit, all new cooling system, starter and battery, alternator, and cables.


only thing not changed is the fuel pump and filter !

any ideas ???????????????
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