weird noise from under dash!

[esskater892]

so as my familys friend mechanic is driving my car he notices a sound under the passenger side dash. it was the sound of a bad window regulator..you know the grinding sound...well this was under the dash and its pretty loud he let me here it over the phone. any ideas as to what it could be? oh and when he turned the fan switch off the sound didnt go away so i know its not the blower motor.which was replaced like last summer.

[esskater892]

any ideas?

[93accordfreak]

The blower motor still spins with the fan off whenever the key is turned on, though at a very low speed. You'll notice that even with the switch turned to "off", there is a slight amount of air moving from the vents.

It's this positive ventilation thing that's supposed to prevent suffocation/carbon monoxide poisoning. You may need to see if there's anything touching/clogging the blower motor, like a leaf/straw, etc, or possibly the motor's bearings gone and the blower wheel is hitting the case.

[esskater892]

you think it would make that loud of a sound. like i mean the sounds is like... if it is the blower motor... its turned on high and not like the low speed your talking about. its a pretty rapid clicking/grinding sound.

[lost_accord]

the sound should change with the fan speed. it's probably the fan like said, because it's the only thing that moves under the dash. maybe an angry rat chewing on wires tho. you never know about those things

[esskater892]

from what the doc says the speed doesnt change.

[twinaiti]

does ur heat work fine, if not it may be the heater core.

[honda_kid]

the heater core isnt gonna make a grinding noise. good guess tho

[esskater892]

oh heat is amazing. i actually have a overheating problem. thats the orginal reason why its there. it loses fluid.. but pressure test says its good..t stat works because the lower hose is hot as well as the top. there does seem to be rad fluid where the w/p is but the pressure test says no leak...well very slow leak..but im losing a good amount. i have to put like a pint a week! my car = problem prone.

[esskater892]

any other thoughts on that weird noise?

[esskater892]

so no one has had the same problem? i doubt im the only one.

[Losiracer2]

it could be the fresh air/recirc button. There's a motor that turns those vents to allow fresh or recirc. air into the cabin. Mine got jammed when Honda replaced my blower motor. So I just left it on recirc for the longest time. I finally got the ballz to take it all apart and I found that that was the problem. What that motor does is turn a system of levers to open and close the vents, pretty complex actually.

When the vents get jammed in between those two modes, it sounds like plastic blades hitting something right? Its a bitch to get to unfortunately. You'd have to remove the blower motor to see it and fix it. Sounds to me like its stuck in between. Try hitting the bottom of the blower motor with your hand a couple times to see if you can bump it back into place.

[esskater892]

damn i hope i dont have to take that shit out again. i did it last summer and it took me all day lol. plus it was the first time. but it was a pain in my ars!