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Q: my run sputters going over 45 mph on 2003 Ford Expedition

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
no power when on highway and trying to pass cars
(2) Answers
You have a check engine light on. What are the trouble codes.
DO NOT REPLACE THE CATALYTIC CONVERTORS!!! That is a lot of money to guess.
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