Noise when using fan or A/C?

I have a 97 Accord. Whenever I turn on the fan (the A/C button is already
depressed), I hear a noise coming from the right side of the car. When I turn
the fan off, the noise takes a few seconds to die down and then finally
disappears. When I turn the fan back on, the noise starts up again. It's
tough to describe this noise in words. Any idea what it could be?

 

Is it kind of a rustling noise? Possibly leaves/debris that made its way
into your blower motor housing. Dealer here in NYC wants ~$140 to get it
out of a new-to-me '94 Civic, perhaps because the evaporator apparently
must be removed (and the refrigerant recovered) before one can get at
the blower unit. Sure wish it had been designed differently... I'd like
to do it myself!

 

++++++++++++++++++++++

_If_ your accord has a changeable CABIN FILTER, get the instructions off
the web, and pick up a filter and swap it yourself. You may find a pile
of leaves, or maybe a mouse nest in there. An air hose would be good to
have available, as well as a bit of coat hanger for reaching in there to
clean out debris.

'Curly'

 

the fan is full of crap. 97 didn't have a cabin air filter.
pull the blower motor out and get the leaves out of it.
Chip

 

Chip, is there any chance of doing it in a '94 Civic with A/C, *without*
having to break the A/C system open?

Abe

 

This all sounds like what I heard in my '90 Prelude. It seems the
screen vent under the cowl had been chewed by a mouse, a lot of debris
had fallen in the blower's round fan (maybe even mouse parts, I
couldn't tell). I replaced the cowl screen and cleaned out the blower
motor, including opening up the motor itself and blasting all the dirt
out with an electrical cleaner. I also replaced the blower brushes
($20 vs what Honda says when they want to sell you a $300 motor). Some
months later the blower resistor pack also failed, so I recently
replaced that as well...