System to lean

FORD EXPEDITION
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SICWITIT
  • MEMBER
  • 2 POSTS
Hello, I have a 1999 Ford Expedition, and sometimes it is idle to low to stay running. It stalls and sputters. I have to keep my foot on the gas to keep it running. If I drive it for or while or keep my foot on the gas for a way it will idle properly. I am not sure what the problem is. It is driving me crazy. I had the codes read and I got EGR and system to lean. Do I need an Idle Air Control Valve, EGR Sensor, both, or what? Please help I am at the end of my rope.
Jan 16, 2006 at 12:52 PM
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DB554
  • ✓Experienced Mechanic
  • 35 POSTS
sounds like you need an air idle control valve
Jan 17, 2006 at 8:02 AM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
IAC wont make the system lean O2 sensors or most likely the Mass Airflow Meter
Jan 18, 2006 at 8:56 AM
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SICWITIT
  • MEMBER
  • 2 POSTS
Do I need to replace all the O2 sensors, or is there away to find out exactly which one is bad? If so please let me know. Thanks for everyone's help. I really needed it.
Jan 20, 2006 at 1:22 PM
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