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Discussion Starter · #1 ·
Replaced the ICP sensor in my '01 Excursion and the rough idling / loud knocking symptoms went away for a couple of days but then returned. Should I have disconnected the batteries to reset the system?

Initially purchased a generic sensor for $39 that came with a new connector and soldered the new connector on because the original was full of oil. When the knocking returned, sent out for a Motorcraft ICP ($129) and installed that one but the rough idle/loud knocking continues.

Any ideas on what to check?

Victor Trujillo
El Paso, TX
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