Roaring noise coming from engine compartment

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

There are three videos but 2 at too short to be any good and the other is a for a Ford 500. Did you come across this text based article.

https://www.google.com/search?q=2006+ford+freestyle+alternator+replacement

[walkthrough] How to replace an alternator on a Freestyle

My Ford Freestyle https://www.myfordfreestyle.com > forums > viewtopic
Aug 30, 2009 - Time to assess the job: The alternator is located at the lower rear of the engine compartment, you should be able to see the black plastic ...

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Fuse Box Diagram Ford Freestyle (2005-2007) - Fuse-Box.info

fuse-box.info > ford > ford-freestyle-2005-2007-fuses-...

Fuse box diagram (location and assignment of electrical fuses and relays) for Ford Freestyle (2005, 2006, 2007).

Ford Freestar (2003 - 2007) - fuse box diagram - Auto Genius

www.autogenius.info > ford-freestar-2003-2007-fuse-b...

Jul 8, 2018 - Ford Freestar (2003 - 2007) - fuse box diagram. Year of production: 2003, 2004, 2005, 2006, 2007. Passenger Compartment Fuse Panel.

Under-hood fuse box diagram: Ford Freestyle (2005) - Pinterest

www.pinterest.com > ... > Power & Electrical Supplies

Apr 5, 2019 - Fuse box diagram (location and assignment of electrical fuses and relays) for Ford Freestyle (2005, 2006, 2007).

The car needs some work. Transmissions have parts that wear out. There are clutch plates and other things that have to be replaced. The roaring sound leads me to believe that it is emissions related or the fan clutch is wearing.

sounds like a relay clciking because there is a shrt somewhere.

it is where a hose comes throguh the firewall, There is a TSB on this.

Printable View (70 KB) TSB
06-2-6

• WATER LEAK IN RIGHT FRONT OF PASSENGER COMPARTMENT

Publication Date: January 17, 2006
FORD: 2005/06 Freestyle
ISSUE: Some 2005 Freestyle vehicles may exhibit a water leak at the right front passenger compartment. This may be due to grommet for rear washer fluid line at dash not being fully seated.
ACTION: Inspect windshield washer grommet from inside vehicle under dash and properly seat if out of position. Pull carpet back and reach under bulkhead pad to install. Removal of instrument panel is not required. (Figure 1)

Keep in mind the definitions:
* ECM = Electronic Control Module (prior 1995 computer, OBD1)
* PCM = Powertrain Control Module (1995 and newer, OBD2)

Ford Freestyle 2005 - Powertrain Control Module The PCM is located in the ine compartment, passenger side, mounted to the cowl. Removal & Installation procedure:

1. Retrieve the module configuration.
2. Remove the cowl panel grille.
3. Disconnect the 3 PCM electrical connectors.
4. Remove the bolt and the PCM.

To install:

1. Installation is the reverse of removal.

Hope helps (rememnber rated this).

Sounds like a bad wheel bearing to me. Try slightly turning to the left than to the right when the noise begins. If it changes pitch, than it is most probably a bad wheel bearing.

It is on the passenger side of engine compartment under the bar that goes across the shock towers.

have a passenger ride with you to locate the source it may just be coming from outside the vehicle also

If the vehicle is moving I would suggest the look at the wheel bearings. they could be warned out.