Vacuum hose diagram for 2000 Ford expedition 5.4.

Question edited for clarity and add maker.
Question moved to model category.

Here is the vacuum lines diagram. I would also suggest that you clean the Throttle body, and the MAF.

https://www.google.com/search?q=2005+ford+expedition+vacuum+hose+diagram

You also need a good pro grade scan tool computer to check for other issues.

https://www.google.com/search?q=auto+electrician+near+me

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The emission hose routing diagram should be on a 3" x 5" sticker either on the underside of the hood or on the top of the radiator support or on the air cleaner housing cover. It's kind of a symbolic diagram but will indicate what goes where. There are very few vacuum lines on one of these so it should be pretty straight forward.

google it, for diagram

http://www.autozone.com/repairguides/Ford-Pick-Ups-Expedition-Navigator-1997-2000/Vacuum-Diagrams/Vacuum-Diagrams/_/P-0900c152801e54cc

For exact location and diagram of vacuum canister on ford expedition,click the link below and view its diagram:----
Vacuum canister 2000 ford expedition

http://technoanswers.blogspot.com/2012/11/vacuum-canister-2000-ford-expedition.html

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These will help.

Thanks.

yes you have a vaccum leak some where. there is a vaccum cannister attached to the battery tray so it could have corroded something or you have a one way valve that clould be bad on the black vaccum hose coming out of the fire wall goin to the engine

Check the vacuum hoses from the switch to the engine compartment. If you manually operate the heater valve on the firewall (follow the 5/8" hose) you will get heat.

SPI Vacuum Diagram


Zetec Vacuum Diagram

SPI Vacuum Diagram


Zetec Vacuum Diagram



Zetec Vacuum Diagram

If it's equipped with the 2.0L SPI engine (eighth digit of the VIN is 'P'), the most common place for a vacuum leak on these engines, is from the PCV hose that runs from the valve cover to the back of the throttle body. Where it usually rots through is the elbow at the back where it connects to the throttle body. Hope this helps. The only place i could find any views is here. vacuum hose diagram - Focus Fanatics

check vacuum leaks special idle valve to the pcv valve

That is something you would have a very hard time finding on the internet, but the Chilton shop manual has a vacuum diagram for every engine in your model. You can find that manual or another brand at your local parts shop.