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Q:

how would you update the PCM software iam having the on 2000 Ford Expedition

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
running ruff and 174 code
(2) Answers
More likely a vacuum leak on drivers side of the engine!
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It's not a PC, and re-setting the operating system is not a fix.
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