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2000 Ford Taurus idel

Tiny
BILLV
  • MEMBER
  • 2000 FORD TAURUS
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 130,000 MILES
After engine gets warm the idel does not hold. At stop lites the idel goes down to about 5or 6 hundred and the oil lite fickers on. Why does"nt the idel come up to speed, if Igive it just a little speed the lite goes out.
Thursday, January 1st, 2009 AT 8:00 PM

1 Reply

Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
IDLE SPEED
Idle Air Control (IAC) Valve Assembly
IAC valve assembly is used to control idle speed and provide a dashpot function. IAC valve assembly meters inlet air around the throttle plate through a by-pass within the IAC valve assembly and throttle body. See Fig. 8 or Fig. 9.
The PCM determines desired idle speed or air by-pass and signals the IAC valve assembly through specified duty cycle. The IAC solenoid is built into IAC valve assembly. IAC solenoid responds by positioning the IAC valve to control amount of air by-passed. PCM monitors engine speed and adjusts IAC duty cycle to achieve desired RPM. IAC valve assembly is not adjustable and cannot be cleaned.
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Thursday, January 1st, 2009 AT 8:10 PM

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