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Q:

Loud humming sound coming from motor on 2003 Ford Expedition

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Intermittent, usually after motor is warm
(1) Answer
Needs to be looked at! Might could recommend a shop if you posted a county and state where you actually live!