hello i just bought a 2002 blazer34,000 miles and everything is clean and brand new. only thing is when i first start my car in the mornings the car sounds like its leaking somthing when im driving. almost sounds like swishing sounds. i stopped my car and found out it only makes that noise when i go past 2000 rpm. what do i do

 

Give us a clue. The sound is from the engine compartment, the passenger's side dash, the vents - Where?

 

I ahd a Pontiac SunBird that did that. It ended up being caused by me running the radiator low on fluid and it in turn pulled the coolant out of the heater core. When I filled it back up it made kind of a leaking/ rushing water sound till the system was full and the air was all out. Just an idea.