Fuel Mileage and Slight Rough Idle
09-26-2021, 05:12 PM
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Fuel Mileage and Slight Rough Idle
Recently I installed dual exhaust on my 2015 Ford 5.0 Liter F150; the fuel mileage has dropped 2 mpg and if the temperature is above 90 degrees it has a slight rough idle issue. If it’s cool outside is seems to run better; I have replaced all the camshaft position sensors. It has 125000 miles on it. Didn’t have or notice this issue until I installed the exhaust.
