2004 Ford Mustang Q&A
2004 Ford Mustang Question: exhaust manifold gasket.
Yes, because the fresh air hits the Oxygen Sensors and makes the car run REALLY RICH, which cuts about 40% off your mileage. You may also have a Check Engine Light on as well. This article explains about the Check Engine Light http://repairpal.com/check-engine-light - dandd
When I turn the car on it iddles above 1 rpm ifor about 2. Minutes and then it goes to normal is that normal or is something wrong