I'm too lazy to do a topic search....
here's what we got 2000 Awd Eddie Bauer 5.4L.
under moderate to hard acceleration up to about 40 mph you can hear faint scraping/groaning sounds up front. Is this the front wheels trying to engage? I thought I read that the awd will kick in under hard acceleration, but don't know if a sound accomodates the action.

 

Does mom know about this "moderate" acceleration you're doing?

You might "feel" the front wheels engage, but I don't think you should hear anything.

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1997 4x4 Expedition- 4.6L, true dual exhaust w/Ravin DI/DO, K&N air filter, SuperChip, airbox mods, Edelbrock shocks, 285/75R16 BFG ATs, 2000 F150 "XLT" wheels, 4.10 gears, Auburn LS, Clarion In-dash CD player, Smitty Bilt push bars and nerf bars.

2001 4x4 F350 SD XLT CrewCab LWB- 6.8L, Offroad Pkg, HD Suspension Pkg, 3.73LS, TT mirrors, 6-disc CD changer, Remote Keyless Entry, Sliding back glass, tinted windows, GoRhino nerf bars.
NoMo's site

 

is there any other way to accelerate, nomo?

It makes the noise for her too.

Nomo,
My truck is out of the shop, going to swap with mom today. She said it goes right into gear and felt like it had some more pep on acceleration. you know what that means..... now we just have to wait to see how long it takes me to break it again. I can't wait to stomp on it and see if it is actually any better.

 

Cool. From what I hear, that shop is a good one. Your truck should run fine.

Now, what about this noise on the X? Michele's doesn't make any noise (other than exhaust) when in A4WD. Operation is/should be silent.