My4.6 l thunderbird is pulsing back an forth from 600-900 and back constantly?

Asked by Davelx Jan 18, 2015 at 09:09 AM about the 1997 Ford Thunderbird LX RWD

Question type: General

It will start and drive fine but constantly pulse from 600 rpm to 900 or 1100 rpm and back
Seams to be getting worse!

1 Answer

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