changed idler pulley, still got the whine noises..

[WannaXP8]

I thought that my idler pulley was going bad, cause there is a whine coming from under the hood, and I cant tell what pulley its coming from, how can I tell what pulley its coming from?

 

[boominXplorer]

maybe if you take off the supercharger you wouldn't have the problem . Sure it isn't the belt? Try to put a little oil on each pulley to see if it goes away. Do one at a time so you know what one it is.

 

[NOTAJP]

Are you sure it's not the great Ford P/S whine?

 

[boominXplorer]

Originally posted by NOTAJP
Are you sure it's not the great Ford P/S whine?

LOL he would of probibly noticed that when he bought the truck brand new

 

[WannaXP8]

have had the truck since new, its got 93000 miles on it now, and now I wish I would be able to take the supercharger off..no wait I would like that kinda whine..I dont really wanna take it to the shop..i hate shops..I like to do the work myself

 

[tmsoko]

There should be 2 idler pullies and one tensioner pulley. Could be any of the three. Not sure if the blower adds any more - I had to add one.

As for determining the location, if you are careful, you can put a metal rod to the pulley bolt and put to your ear. This is a good way to hurt yourself though, as the fan and belt are attracted to anything you put near them! Not recommended.

 

[MattPersman]

go to napa and get a stethescope to check where its REALLY coming from. could be the rear bearing on the alternator. pretty common to make noise. could be any of the pullies. I have even seen belts make noise although they look fine, no cracks, glaze, etc.

 

[ishichar]

Whine

Been there, been driven batty by it. There is a service advisory on front inner axle seals.

The give away symtom was when the whine would temporarily go away after hitting a water puddle, or after washing the truck.

 

[hydroxy]

the belt will make a chirping sound, not a whine. I've been through 4 belts, none of them fixed the chirping sound during the winter when I start up.

Usually the whine is the PCV valve... especially if you hear it loudest at idle. There are a bizillion threads about cleaning it.. takes 15 minutes.

Edit: wasn't paying attention that you had a supercharger... no clue what to do to fix it =P

 

[WannaXP8]

its not the inner axle seals, it does it when the truck is in park and just running, its not the pvc valve, its a bearing noise, and no I dont have a supercharger, wish I did, but I dont. But thanks for inquiring on my post.

 

[TAS98xlt]

When I had a wine it was the idler pulley, the pulley way at the bottom. Sorry, I don't really have an answer for you. Do like they said above and spray some lube on each pulley to see if you can pinpoint the prob.

 

[Josh]

My bet is on the PCV or IAC leaking a little. Is the idle a little rough? I would just unplug the hose connecting your PCV to the intake and plug it off with something and see if it goes away.

 

[WannaXP8]

its not a whistling like air, but a bearing noise...

 

[hydroxy]

one thing that I saw someone do to hear something in an engine... get a long screwdriver, put it next to the thing holding the bearing, put your ear on the screwdriver... I dont know if this will help, just an idea.