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Mercury Mountaineer
Ford Explorer XLT
Fuel Economy and Mileage
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What would cause a drop in fuel mileage on a 2001 Mercury Mountaineer V8?

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2006-04-15 19:44:10
2006-04-15 19:44:10

It could be a variety of things. dirty air filter, worn out spark plugs, bad 02 sensor, clogged fump filter, or even dirty injectors.

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