Have your check engine light checked (scanned for codes at any popular auto parts store)
Write down the exact code numbers (not just what they say they mean)
Just a wild, wild guess (without the codes) Maybe your fuel filter is stopped up, the higher demand for fuel at higher speeds may not be - being met due to it being partially stopped up. Enough fuel might get through at lower speeds. Misfire codes may show up.
This may or may not be the issue. Lots of things could affect a modern vehicle.
The codes may tell a better story, bring 'em back here!
At minimum, let us know your outcome!
The Medic
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Sunday, July 31st, 2016 AT 5:01 PM