Idle High and Low IAC Valve 2003 Ford F150

Ford F-150

My truck starts fine. When in park to warm up after a few months it revs up then low high then low and shuts off when put in gear I have to sometimes give gas quick!! When accelerating it feels like it don’t want to get up go. Other then that it drives fine.



Sounds like a possible vacuum leak or a faulty IAC Valve. The IAC valve or Idle Air Control Valve is a component that can fail and not cause the check engine light to come on in all cases. There may be helpful trouble codes stored if the check engine light is illuminated.

IAC Valve Replacement 2003 Ford F150 4.6L Engine – Video

Labor Time R&R IAC Valve

 

 
  Model Year Skill Code Factory Time LABOR Time  
IDLE SPEED CONTROL, R&R          
 F150,          
  4.2L ……………………………. 1997-04 B 0.2 0.7  
  4.6L ……………………………. 1997-04 B 0.2 0.7  
  5.4L,          
   w/o Supercharger ………………… 1997-04 B 0.2 0.7  
   w/Supercharger ………………….. 1999-04 B 0.3 0.7  
 
NOTES FOR: IDLE SPEED CONTROL, R&R
Does Not Include: EEC Quick Test Or Pin Point Test Diagnosis Time.
 

IAC Valve Location Diagram

2003-ford-f150-engine-sensor-location-chart-diagram