Odd rubbing noise

[Grog6]

or it's empty. That's what I remember.

 

[Kidd-7]

It was noisy this morning, placing my hand on the IAC hose and the IAC itself I didn’t feel it resonating.
At lunch it was humming again, I unlatched the airbox and opened it ever so slightly, the noise practically went away. Shutting the airbox brought it right back. So definitely though the air intake.

 

[theterminator93]

If the air silencer is in place is it unobstructed? Is the air filter newish? No obstructions in the intake tube?

 

[Kidd-7]

No silencer, newish filter. Will have to verify air tube

 

[Grog6]

If all else fails, try putting the silencer back; I'm curious. Ford might have had multiple reasons for it.

 

[1997ThunderbirdLXV6]

This all reminds me of that phantom noise I had a couple of times last winter. It fixed itself though, so I couldn't say what it was.

 

[Kidd-7]

Sounds like you’re neighbor is running a weed wacker.

 

[Kidd-7]

Well I think the IAC has reached the point of failure; it’s an aftermarket and a few years old.
This morning it was resonating again; my RPMs were varying widely as the ac cycled.
Then pulling out of the driveway she stalled. I didn’t have time to troubleshoot, I grabbed my other vehicle and headed to work. I’m going to order a new IAC and change it out.