Whining noise at idle

[MaximaFan]

Why is my 2000 SRX 7 whining at idle than it goes away as I give it? It seems like it is the ecu but I could be wrong.
JT

 

[98srx6]

Check your belt deflection.

 

[MrSled]

sounds like a short belt or bad alignment....

 

[MaximaFan]

Thanks guys I will take a look at those options.
JT