2000 Honda Accord constant noise - what's wrong?

bg is correct. Also,try issolating the problem first by taking a length of hose and while engine is running CAREFULLY direct one end of hose to a `suspect`part eg; alternator,powersteering pump, idler pully, ect, and offer up the other end of hose to your ear,if located, the sound of the`suspect`will be amplified and the source isolated.

bop
August 2008

Sounds like you have a recourse on who ever worked on it didn`t fix the problem eh>?
Sometimes it is a problem with eleminating noise on some cars but not to the point where you are throwing good money to bad.......be reasonable and make some type of agrement that the parts they replaced did need to be replaced but it didn`t fix the problem you were complaining about
If they are good people they will make some type of adjustment on bill .....you pay for parts and they eat labor or vise versa .....if not find another shop and put them in small claims court !!!!!!!!!!!!!! yep it will work
25 years @ GM dealership ....

bg
March 2006