roar noise when reverse and drive

When I start backing up or driving depending on witch way im parked when I start I here a roar after a few feet. Has any body heard this and know if it s gonna be a problem. I also have a rattle from inside the dash but I ain't looked into that yet

 

^^^

If i start and immediately start driving the engine fan is really loud for a bit.

 

Get ready for dash rattles, a lot of people have them.

 

No the roar doesnt last long like one second. It sounds like a low urrhhhh noise. Sounds most like a bearing from a skateboard wheel when you spin the bearing real hard with your fingers it'll make that noise just before it stops

 

I mean if you over spin it real hard it'll make that noise then stop. Hard to explain unless you be cleaned bearings and spun afterwards

 

Sounds to me like your brake actuator. Normal noise.

 

Ok thanks