Noise coming from engine?

[LarryM]

Hello I am a new member. I have a 1998 Ford Explorer and the problem is sometimes when I go up or a down hill, there is a noise like a siren coming from the engine area, it does this for a short time and then stops. Does any one have any idea what is causing this? My wife thinks the vehicle sounds like it wants to change gears.

 

[TPLYNCH]

Try cleaning your IAC. It is one thing under the hood that will sound like a siren, even though it usually only does it at idle. It's a simple place to start. Look in the Useful Threads forum, and you should find one on how to clean/replace it. Can also search for IAC - will find lots of threads about it.

 

[TPLYNCH]

Try cleaning your IAC. It is one thing under the hood that will sound like a siren, even though it usually only does it at idle. It's a simple place to start. Look in the Useful Threads forum, and you should find one on how to clean/replace it. Can also search for IAC - will find lots of threads about it.