with the windshield freshly replaced could the whistle be an air leak blowing thru the seal? or an errant piece of rubber howling in the breeze? i was driving my fathers forrester the other day and his windshield rubber is dry and shrinking and it whistles at about 45mph

 

maybe take the wipers off and see if they are the culprit.

 

I had a similar problem with my old Volkswagen roof fack. try putting tape the windshield trim, roof rails where they meet the roof, mirror to door, and pretty much anything else that could make noise.
Good luck,

Dodger

 

Yeah, trim out the windshield and other areas with some nice color of fancy Duct Tape and see if that helps or just turn the music up to cover it up.

If you use the Duct Tape idea, make sure you color key it so it looks like a Land Rover should. And keep the edges nice and straight and avoid wrinkling the tape , I hate to see sloppy Duct Tape work.

 

I'll have what he's having!
Been sniffin glue again Danny?
Hey who am I to judge when someone gets 'weird' on a Thursday night? Party on Garth... Hell, some of my best posts have been inspired by Grand Ma...

 

I had same issue and when i took apart the air filter to replace filter and clean MAF, noticed there was no "o-ring" that's supposed to be between the filter and MAF....replaced the filter and put in a new o-ring and the sound went away.

 

I have a 2003 Discovery SE7, I have the same issue, the vehicle whistles when under acceleration. It does not whistle when I lift off the accelerator. Please tell me if you ever resolved your issue and if so what was the result? Thx

 

Since its only making said sound when the accelerator is pressed, I would check everything between the throttle plate and air horn.

 

If you have the cross bows installed on the roof rack they make a bad whistle it is worse with a sunroof, probly why rover provides a storage bag

 

For those interested, I took the 2003 Land Rover discovery to rover doctor in Martinez California. He diagnosed the whining as the U joints in the front driveshaft. The original equipment you joints do not come with grease fittings. He installed a new driveshaft with greaseable U joints for $500 including parts and labor. Also, it fixed the "clunking, jerking" that I was feeling when the transmission was under load.