So I’ve noticed a whining noise and I can’t particularly tell if it’s coming from engine bay or under the car but it only happens when I’m on the interstate or going 70+ and step on it as soon as the Rpms shoot up above 3,000 Rpms I get a high pitch whine that only gets louder as the rpms increase any knowledge about this?
If you can you need to determine if the noise is engine RPM related or vehicle speed related. I've covered if it is vehicle speed related.
If the noise is tied to engine RPMs then you need to consider -- most common -- something with the accessory drive system.
In one case when I was hearing a low rumble sound at cold engine idle I removed the serpentine belt and started the engine and ran it just long enough to determine the noise was not present with the accessory drive system not turning.
Long story short knowing the accessory drive was the source of the noise I found the water pump had some bearing play and arranged to get the car in and have the water pump replaced, along with the T-stat. Might mention the water pump lasted 172K miles. It became noisy because the bearings wore out.
With a new water pump no more noise.
With another car two times -- separated by years and thousands of miles -- an accessory drive idler roller bearing went bad. First time I heard a "dry" bearing sound at hot idle. Second time a faint/intermittent chirp. But I let the tech make the final diagnosis and in both cases it proved to be an idler roller bearing.
If the noise is present only when the engine is up to temperature running the engine sans the accessory drive belt is not really something you want to do. You'll have to with a helper behind the wheel working the gas pedal vary engine RPMs while you
carefully probe with a mechanic's stethoscope in an effort to pinpoint the source of the noise.
If the noise is coming from the accessory drive system -- again this is most often the case with noises tied engine speed -- then you or someone will have to get his hands dirty to replace the noisy accessory drive or noisy idler (or tensioner) roller bearing. And ideally replace the belt, too.
If the noise is coming from inside the engine that I think will require you put the car in the hands of a professional tech.