Bad MPG
We'll need more vehicle info to make a good guess
Have the computer scanned for trouble codes & post ALL the code numbers & the sequence in which they were found, as any found can offer up good trouble shooting clues.
Most autoparts stores will do this at no cost, if the CEL is lit, some will do it even if you don't have a trouble light lit, so call around & ask.
Is this a flex fuel 3.0L & if so, are you using E-85?????
Certainly the weather, your driving habits, fuel used & if the vehicle has been messed with, like the air intake system, air filter type, like a oiled cotton gauze or foam type air filter, that can dirty up the MAF sensor, or a clogged air filter, or if someone has messed with the computer with a tuner, or installed a performance chip, or installed oversized tires & didn't reprogram the computer for it, or dirty sticking, leaking fuel injectors, or too much fuel pressure, clogged cat converter/s are some thoughts that come to mind that'll mess with mpg.
So we'll need some more inputs to make a better guess.








