Probably the serpentine belt idler pulley bearing.
Check all your accessories pulled by the belt. There are a lot of bearings in these accessories that can cause the " chirping noise".
If your 2002 Ford Sport Trac is making a chirping noise when you do a cold start up, this could mean that you have a problem with the engine. You should have it looked at by a mechanic.
if it was like my 99, then a belt was worn out, and will cause a chirping noise, if it is in the engine compartment, it is very likely to be a belt
A chirping whistling noise!
The noise is birds chirping.
you must have run over a budgie
They make a short chirping noise (only the females make this noise)
he he he
replace alternator belt
If the chirping noise speeds up as the truck speeds up, check the u-joints in the drive line.
I had the same chirping noise. My chriping was the belt and/or the power steering pump. I replaced both. no noise now. I would first replace the belt, then the pump
No