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Will a KN air filter improve gas mileage on a 2004 ford expedition?
Wiki User
∙ 16y ago
The best answer for this question is "sometimes". A K&N will greatly improve air FLOW, which can improve milage under most conditions, along with an added boost in power. However, and I know this from first hand experience, if you are using a cold-air intake system with it (or ram air, as it is sometimes called), your mileage can suffer in winter months. Cold air is denser than warm air, and your MAF sensor will automatically increase the amount of fuel it sends to your engine to compensate for the additional air it reads. Long story short, I blocked off my cold air pipe for the winter, and my mileage improved somewhat, but not to what I had during the summer. So, it's a mixed blessing, but I found it was worth the change.
Wiki User
∙ 16y ago
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What is the EPA city and highway mileage estimate for the 2004 Ford Expedition?
The EPA mileage estimate for the 2004 Ford Expedition is 14 mpg in the city, 18 mpg on the highway.
Where is the cabin air filter on a 2004 ford expedition?
The 2004 Ford expedition cabin air filter is located behind the dashboard, on the passenger side. The air filter should be labeled as such.
How do you get better gas mileage in 2004 ford expedition?
buy something smaller
What kind of oil filter in 2004 Ford Expedition?
According to the 2004 Ford Expedition Owner Guide : Both the 4.6 and the 5.4 take the ( Motorcraft FL-820-S ) engine oil filter
How much oil goes in a 2004 expedition?
6 quarts ( 5.7 liters ) with filter change - 4.6 L and 5.4 L engines in the 2004 Ford Expedition
How many quarts of oil does a 2004 ford expedition whit a 5.4 take?
The 2004 Ford Expedition owners manual shows ( 6 quarts ) WITH FILTER CHANGE
How can you improve gas mileage on a 2005 x terra?
2005 XTerra, I own a 2004 XTerra and replaced the air filter with a K&N air filter (not the whole intake system, just the filter). It cost me about $50. This filter never has to be replaced, just cleaned out every 50,000 miles. It gave me an extra 1-2 mpg more and increased the horsepower a little. hope this helps you out. 2004 XTerra
What could reduce the gas mileage of a 2004 Cavalier with about 35000 miles?
change air filter if that doesn't work change gas filter
How do you replace the fuel filter located on a 2004 Ford Expedition?
not so much an answr but direction. I believe it is the same as the 2003 so look at the answer for the 2003 expedition.
Can you show the location of fuel filter on a 2004 expedition?
Fuel Filter Location The fuel filter is located along the frame rail under the vehicle and is accessible only from underneath the vehicle.
Why is your fuel economy going down on your 2004 Ford expedition?
You may need to check your air filter. This may affect the way the vehicle performs, also air temperature will affect you. When it is colder you get better performance and you lower rpm's, thus better gas mileage.
What kind of oil do you use in 4.6 liter expedition 2004?
According to the ( 2004 ) Ford Expedition Owner Guide ( 5W-20 ) * with engine oil filter change , 6.0 U.S. quarts of 5W-20 engine oil
