Quote:
Originally Posted by FordMan59
Could need a tune-up. Could be a bad 02 sensor. I've had 02 sensors go out before and my mileage would usually drop about 25-35%. Could be a vacuum leak. Could be a bad MAP sensor. Could be a brake dragging or a bad wheel bearing not letting the wheels roll freely. Ask him if the check engine light is on if it is have the codes checked, that should help narrow it down. These were just a few things that came to mind right away that could be the problem.
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The fuel pump stays on and won't shut off. No check engine light. Forgot to mention that.