00' Ford Focus- Engine revving up and down in idle! Help!
I recently had my 2000 Ford Focus serviced for an oil leak which lead to several parts
being replaced, and now it seems to rev up and down (as if i were lightly pressing the gas
pedal repeatedly) while in idle or park. I have also noticed that it is struggling more to
accelerate and to get up hills. Any ideas as to what this might be and how much a
mechanic would charge to fix it?
it could be a vacum like or the thoggle body
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