Gas mileage after tune up
06-05-2010, 08:12 PM
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Year: 1997
Model: Cherokee
Engine: 4.0 Straigh 6
Gas mileage after tune up
hey guys i did a tune up not even a month ago with new cap and rotor, plugs, air filter, wires, fuel filter and my mpgs went from 12 to 16 or 17 on the street. now yesterday i had a check engine light and it was the ccv hose that was broken so i replaced it and now im getting about 13.6mpg. can anyone explain?
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