hi...
i have an '88 honda prelude si.

mechanic replaced the blower motor & switch 300 miles ago. i've barely
used it.

it's now making a loud rumbling sound... louder as the fan speed is
increased.

i'm hoping maybe there's a leaf caught in the duct? but it persists.

also, when the mechanic replaced the blower motor, the a/c doesn't blow
cold anymore.

thnx for any insight,
frank