I checked that on my gf's accord but there wasn't anything there. The a/c compresser really went bad on her car.
Originally Posted by andy2541
not sure if this is the same problem i had, but my AC made a knocking noise.
I took the Fan blower on the the bottom passenger side apart, \
and found out that there leaves and twigs in there, that was making the noise when i turn on my fan/AC
after i clean it out, it was smooth again.