97 5.0 whining like a child

[natedogco2007]

ok so here is the problem.... no matter what the weather or any other variable there is this whine from the front part of the engine on my mom's 5.0. i have tried changing the belt and adding belt dressing and this only made the problem worse. I am thinking that it is the alternator but i can't be sure. i was thinking of replacing the pullys but i don't know if that's what it is. Can the bearings on the alternator be replaced? if so some how to tips would help. I have looked at other posts and they suggest anything from cv joints to pcv valves. i can eliminate the cv joints since it does it when it's not moving and i have replaced the pcv valve every 3000 miles as recommended. and turning the stering doesn't change anything so i don't think that it's the power steering. i guess that only leaves the alternator and the pulleys....right? Please help my mother is driving me crazy about this.

 

[TAS98xlt]

Check the idler pulley.

 

[jimbo74]

you may want to look into the IAC, my dads ranger has this problem, and we have narrowed it down to pulley bearings or the IAC

 

[Cali' Explorer]

I would check the Pulley's and the belt. Mine is whining and I tracked it to the pulleys by spraying some WD-40 on the bearings and starting it up, whining was gone for a little bit. I think these things run about $20 - $30 at most auto parts stores.

 

[natedogco2007]

thanks all i will try these things this week and let you know what's up. thanks again.