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Q: If a fuel pump is going out will the check engine light come on? on 2003 Ford F-150

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
runs rough, no check engine light, had tune up, changed fuel & air filter
No car image 94a1663db56199c5353592009e34aaa51078a2469bed068bb8d6f0ba43accf97
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Possibly not. However, a fuel pressure test is the best way to determine fuel pump performance. Sometimes the pump will work enough to keep the vehicle running. Test it at cold and normal temps although they are more common to fail at normal to warm temps.
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