Couple of problems

[Blane senn]

First i have 2003 expedition eddie bauer with a 5.4 the battery light stays on even after i have changed out alternater and battery second after i crank it will idle lime it supposed to and then it will idle up and down thiught about changing out the iac valve but just want to be sure before i do that

 

[stamp11127]

Welcome to the site.
For your alternator issue you will need to check some of the wiring. How are you with troubleshooting electric and do you have a dmm?

 

[Blane senn]

Sounds like i need to take it to somebody i can do some stuff not to good with electrical and dont have a clue what dmm is

 

[Blane senn]

I did buy a haynes repair manual and a hand held code scanner

 

[Bedrck47]

Although the Haynes manual has some good information it is not specific to your year and model Suggest you get a copy of the Ford Service manual. See the attached

http://www.expeditionforum.com/threads/factory-service-manuals.25089/

A DMM is a Digital Multi Meter capable of reading Voltage, Amps, Ohms etc. Easy to use and plenty of information on how to use them on youtube

 

[Bedrck47]

BTW Welcome to the Forum

 

[Blane senn]

Thanks dmm (fluke)? I know how to use it i work for power company

 

[stamp11127]

This is interesting, you work for a power company but are not good with electrical....
Can you read wiring diagrams?

 

[Blane senn]

Yea i can read wiring diagrams but i am not a mechanic would u want an auto mechanic trying to get ur power back on

 

[Habbibie]

Yea i can read wiring diagrams but i am not a mechanic would u want an auto mechanic trying to get ur power back on

I work for a power company as well (ComEd) and you have to be very mechanically inclined to carry your weight around in this field. I can fix your car, then your house, and maybe even instal a back up generator with your choice of either an ATS or MTS. Guessing you sit behind a desk, not a field tech