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01 regal bad fuel milage

2 messages, Last post on May 04, 2009 at 4:40 PM
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I've changed the spark plugs, wires, fuel filter, and air filter. I've also changed the catalytic converter in aug 08 because the old one was plugged. I'm getting about 15 to 16 miles/ gallon right now. There are a lot of hills where I drive, but I was getting at least 20 to 21 miles/ gallon before. I've never taken the car on a long highway trip before, so I don't know what the highway mileage was. Also, when the car is idling, it sounds like it is sucking in a lot of air through the air filter box. You can hear it sucking from about 5 to 10 feet away. It's done this ever since I bought the car in June 08. Does anyone else's regal make this sound, this loud? Please help with either issue. Thanks in advance!
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Replying to: prestocat (Jan 02, 2009 10:31 pm) |
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