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everything that makes the engine run, basically...read up on troubleshooting everyone should have a manual for their vechicle, and the library should have a professional shop manual available in the reference section for FREE to make copies of--the PRO manual has more detailed info, and may have wiring diagrams when needed...read up and fix 'em like a PRO...good luck Dave :) The main component of the emissions system is the ECU, (Computer). It is the brains of the system. There are numerous sensors that feed data to the ECU, telling it all sorts of things that help it to make the engine run as efficently as possible. Use Google and search with the term, "emissions controls 101",
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Where is the location for the idle control valve on a 1999 Ford Expedition 5.4?
The idle control valve on a1999 Ford Expedition is on the upper part of the engine by the throttle body and fuel injection.
Where is located Ford Expedition 1999 relays?
where is located ford expedition 1999 relays
What oil do you use on a 1999 Ford Expedition?
5W-30 ( according to the 1999 Ford Expedition Owner Guide )
My alarm in my 1999 Ford Expedition won't disarm?
My alarm in my 1999 Ford Expedition won't disarm. What do i do.. Lynn
Kind of oil for 1999 Ford expedition?
5W-30 ( according to the 1999 Ford Expedition Owner Guide )
Will 6 lug 24 in rims fit on 1999 ford expedition?
No , a 1999 Ford Expedition has ( 5 ) lug rims
How many lugs on a 1999 expedition?
5 per wheel on the 1999 Ford Expedition
Where is the heater control valve for a 1997 Ford Expedition located?
where is the heater control valve for a 1997 ford expedition
Where is evaporative emissions purge control valve solenoid on 1999 ford ranger located?
above the rear end on the drivers side
Will 6 lug 24in chrome rims fix a 1999 ford expedition?
No , the 1999 Ford Expedition has ( 5 ) lug rims
How many gallons does a 1999 Ford Expedition hold?
If my 1999 Consumer Guide book is correct, the 1999 Ford Expedition holds 26 U.S. gallons.
How to set timing on 1999 Ford Expedition?
how do you set or check the timing on a 99 ford expedition?
