whine at highway speeds

[Bigvin]

Just started hearing it today. It's fine until I reach around 55-60mph and then I start to hear a high pitch whine that gets higher in pitch as I accelerate. If I let off the gas it goes away, I ease into the gas again and I start to hear it.
Sounds like it's coming from right under the center of the car but sound travels so.....
U joint? need grease in dif? a bad bearing from somewhere?

My mechanics gonna take it for a spin and put it on the lift tomorrow morning, just hope I don't blow anything up till then.

<<<------halfazzed mechanic with expertise as far as changing plugs here so bear with me.

[mr wiggly]

my 05 does same thing. when i stomp on it, i here a noise from trans that sounds like a airplane taking off. i'm told its normal.

[juliet5]

This may sound stupid, but are you sure you dont have a supercharger lol. My buddy bought a vic that was supercharged and did not know it (dont ask me how) and brought it in for a whine noise and thats how he found out....thats jersey for ya

[Pecos Slick]

Could very well be a vacuum leak.

[Interceptor]

Sounds like gears whining.. trans, or rear-end.

[mr wiggly]

my grand dad said ,"don't waste money trying to fix what you think might be the problem, when it breaks you will sure as hell know what the problem is then."

[toytech]

my grand dad said ,"don't waste money trying to fix what you think might be the problem, when it breaks you will sure as hell know what the problem is then."

Wise man! I also use the quote - "If it aint broke, don't fix it"! However, it sounds like your describing a rear end gear noise, like Interceptor stated above.

[Maximus Slade]

I have 3 different vehicles of different types (van, truck, sedan) with the SOHC 4.6L V8. They all have a "whine" when you get up there in speed.

[Bigvin]

My mechanic says it's normal. I'm use to not hearing anything but exhaust because my 05' GT had a bassani xpipe with flowmasters and deletes.
He say it's typical of these drivetrains and it's not as loud as I'm making it out to be. Guess I'm good then .

[rid29651]

My 99 has 121,000 and has that same whine coming from the rear end. Full of rear end dope so I don't worry about it. One mechanic even told me it was the gearing of the rear end. I smiled and said ok.