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

running ruff and 174 code

by in Middleburg, FL on February 13, 2014
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2 answers
ANSWER by , February 13, 2014
More likely a vacuum leak on drivers side of the engine!
ANSWER by , February 13, 2014
It's not a PC, and re-setting the operating system is not a fix.