what kind of noise?
It is the alternator....
The most common cause is slipping belt
Bad ignition coil
It seems as if your car is low on or out of motor oil. Having an oil change done should solve the problem.
A clunking noise when shifting gears on a K1500 automatic transmission, might mean a problem with the drive axle or drive shaft. Check all U-Joints to make sure they are working properly.
If this is a general noise, it could be the transaxle. When you are accelerating, the engine is pushing the gears, and when you let go of the pedal, the vehicle starts to shift back down. If this is an engine noise, it could be predetonation or a valve problem.
You probably have something wrong with your engine, or brakes. You should really have that checked.
Possibly a loose heat shield or other component.
Coming from the drive wheels? Could be worn CV joints
wind noise
could be the fluid level is low
Internal transmission failure.