Twittering sound when my heater is on!!

[lrgfreak47]

So I tried to ignore this new damn sound my s14 is making,but it's finally getting to me and I need y'alls help. Whenever my heater is on my car starts to make this loud twittering sound that's really annoying I know it's not my chain guide I took that off so any ideas? I know this is worthless without a clip I'm posting off my phone as soon as I get one I'll post it. Oh yeah is a 96 240sx still running stock ka.
Modified by lrgfreak47 at 1:18 PM 1/17/2010

[lrgfreak47]

http://www.youtube.com/watch?v=uUFAoq-j34c&sns=em

just posted the video might take some time to process

[SkinnyKibbles]

My s13 makes weird noises when the heater is on full tilt. I shut the heater off and turn it back on and it goes away.

Loose belt?

[str33tprintz]

My s13 makes weird noises when the heater is on full tilt. I shut the heater off and turn it back on and it goes away.

Loose belt?

it really sounds just like a loose belt that I had on another vehicle. Check them all and replace the bad ones, there cheap.

[s13k1d]

deff sounds like your alt belt is loose. try and tighten it a bit. if it still does it belts prolly bad.

[lrgfreak47]

Ok I'll try to tighten the belts then

[goldeneye9mm]

well if the belt doesn't help it may be a bad clutch on the compressor or bad bearing in the compressor.

[S13k]

well if the belt doesn't help it may be a bad clutch on the compressor or bad bearing in the compressor.

yes check bearing, changed mines never had that sound again

[lrgfreak47]

Sounds stupid but how would you check if the bearing is bad or the clutch could anyone post a pic and label maybe lol

[turbotofu]

Correct me if I'm wrong but, it also sounds like your upper timing chain guides are rattling.

[Klits562]

Correct me if I'm wrong but, it also sounds like your upper timing chain guides are rattling.

he said he removed them

[lrgfreak47]

I removed the top guide but not the one toward the front of the car

[S13k]

Sounds stupid but how would you check if the bearing is bad or the clutch could anyone post a pic and label maybe lol

you cant tell until you take it off. most cases when really bad squealing happens its a bearing (well in my case)

[MyNISMO314]

maybe its a bird thats stuck somewhere in there ?