1998 Ford Taurus Q&A

1998 Ford Taurus Question: Idle speed fluctuats from day to day.

usually when first started. -
Answer 1
Idle air control valves are know to have high failure rates. Throttle body plates get gummed up and stick. You can try cleaning the throttle body. -
Answer 2
Also a common problem,, vacuum leaks! Check pcv system... -