Where is the solenoid on a 2006 ford expedition

run the fault codes to check for OD servo/solenoid problems or a problem TCM/ speed sensor unit.

You can check this website, you find there fuse box diagram and description for Ford Expedition

Ford Expedition mk3 3rd generation 2003 2006 fuse box diagram Auto Genius

It can easily be the aftermarket equipment, you can call them. Since no trouble lights are on, just ask at Autozone or another good store and see what they show for a downshift solenoid and a converter lock-up solenoid and where they are located.

Another great source, keeping in mind that an Expedition is similar to an F150, are the Blogs. I believe a site like F150Owners.com or F150OwnersBlog.com have many owners using the same performance equipment you have. Some 4x4 sites are heavy into aftermarket modifications.

Also have your engine checked for "Camshaft Phasers" which can cause "bucking" under different engine loads. There was a Recall about these parts. In short, each engine head has a Camshaft. It is a variable timing camshaft. When 1 side does not match the other, there are problems.

I hope my solution is helpful.

Have a 2006 expedition that died. Towed it back home and found that the #12 fuse was blown. Replaced the fuse and it started back up. After it started I gave it some gas and it died. It will not start again. I checked the fuse and it is not blown now. Any ideas????

i would change it every 4000

They are round "cans" with wires attached. You should have SSA, SSB, SSC, Torque converter and Pressure Control solenoids. They control pressures and have no mechanical linkage.

just replaced air bag suspension on a 2000 ford expedition, but the check suspension light stil is on how do I disable it.

Code indicates bad EGR Vacuum Solenoid. Chilton lists possible causes below. Here's a link to the part you want. Best of luck!
Greg

http://www.rockauto.com/catalog/raframecatalog.php?carcode=1304402&parttype=4964&a=FRc1304402k943582

Possible Causes:

• EGR VR solenoid circuit is open, or shorted to ground
  
• EGR VR circuit is shorted to power or the VPWR circuit is open
  
• EGR vacuum regulator solenoid is damaged or the PCM has failed
  

Sounds like you might have a breather hose that is pinched.