we service our 2003 expedition regularly.
at the moment it is stalling at low idol.
any sugestions

 

Replace the IAC.. Idle Air Control Valve. Same thing happened to me about a week ago Idle was so low it made the truck turn off. It also raised a check engine light with code P1504. Also check the hoses around it for any cracks, leaks etc, just in case. You can find a new IAC valve at advancedauto for about $40-50. The average person can install it in like 10-15 minutes tops and you should be fine. Definately get the code first to be sure first.