# wierd noises
**URL:** https://forums.speedlife.net/t/wierd-noises/83774
**Category:** SON240sx Automotive
**Created:** [February 19, 2005, 1:50am UTC](https://forums.speedlife.net/t/wierd-noises/83774 "2005-02-19T01:50:34Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@blu2fourty](https://forums.speedlife.net/u/blu2fourty)
#### Post date: [February 19, 2005, 1:50am UTC](https://forums.speedlife.net/t/wierd-noises/83774/1 "2005-02-19T01:50:34Z")
noise comming from the engine some buzzing noise like i have some very crappy turbo thats about to blow up. its some whoozing noise. it gets louder when rpm get higher. it was bad when i first noticed it but i drove it off and it comes on and off but not as loud as before. anyone know what can cause that noise and should i worry about anything about to give in. i’m guess that it can be throttle body cleaner in my intake manifold cuz i over sprayed. but i did sprayed it 2 days ago 😕
jon
---
### Author:  [@DarkForceJackal](https://forums.speedlife.net/u/DarkForceJackal)
#### Post date: [February 19, 2005, 8:40am UTC](https://forums.speedlife.net/t/wierd-noises/83774/2 "2005-02-19T08:40:22Z")
Could it be electrical interference? It’s usually RPM-related and has a “whine” sound. Done any sound system or grounding work lately? Might want to double-check that and/or your grounding.
Shouldn’t be your throttle body cleaning job. However, if you didn’t quite tighten a hose clamp or connection in your intake system, this kind of sound could arise.
Good luck.
---
### Author:  [@ronnie416](https://forums.speedlife.net/u/ronnie416)
#### Post date: [February 19, 2005, 9:02am UTC](https://forums.speedlife.net/t/wierd-noises/83774/3 "2005-02-19T09:02:53Z")
Is a buzzing noise, fast clacking noise or a air related noise?
Does is do it in neutral whilke revving or just under load?
What kind of car do you have and mods?
---
### Author:  [@blu2fourty](https://forums.speedlife.net/u/blu2fourty)
#### Post date: [February 19, 2005, 2:56pm UTC](https://forums.speedlife.net/t/wierd-noises/83774/4 "2005-02-19T14:56:12Z")
while reving or under heavy load. gets louder as rpm goes up. the noise seems like air related. idle is fine and the noise happens on and off. i tightened all the clamps too
---
### Author:  [@ronnie416](https://forums.speedlife.net/u/ronnie416)
#### Post date: [February 19, 2005, 10:52pm UTC](https://forums.speedlife.net/t/wierd-noises/83774/5 "2005-02-19T22:52:06Z")
**What kind of car do you have and what mods?**
---
### Author:  [@blu2fourty](https://forums.speedlife.net/u/blu2fourty)
#### Post date: [February 19, 2005, 11:35pm UTC](https://forums.speedlife.net/t/wierd-noises/83774/6 "2005-02-19T23:35:34Z")
sohc 240 no mods just aftermarket muffler. the noise sounds like a jumbo jet
---
### Author:  [@NiTeRiDeR](https://forums.speedlife.net/u/NiTeRiDeR)
#### Post date: [February 20, 2005, 5:03pm UTC](https://forums.speedlife.net/t/wierd-noises/83774/7 "2005-02-20T17:03:46Z")
if it resembles the sound of a bus or deisel truck… it might be ur fan clutch that’s going (my old VG did this)
it sounds more like a whirring sound than anything.
---
### Author:  [@suds240](https://forums.speedlife.net/u/suds240)
#### Post date: [February 21, 2005, 1:44pm UTC](https://forums.speedlife.net/t/wierd-noises/83774/8 "2005-02-21T13:44:11Z")
> [@NiTeRiDeR](#):
>
> if it resembles the sound of a bus or deisel truck… it might be ur fan clutch that’s going (my old VG did this)
>
> it sounds more like a whirring sound than anything.
I heard a similar noise from mine a while ago, and it was the fan clutch. Try spinning your fan manually (with the engine off of course). If it’s hard to turn, or you hear a weird noise come from it, you will need to get a new fan, or just replace it with a used one like I did (thanks to Bing and Chris). Don’t try and oil the bearing either, it’s sealed. Good luck.
---
### Author:  [@Axlerod](https://forums.speedlife.net/u/Axlerod)
#### Post date: [February 21, 2005, 5:36pm UTC](https://forums.speedlife.net/t/wierd-noises/83774/9 "2005-02-21T17:36:25Z")
> [@suds240](#):
>
> [quote=NiTeRiDeR]if it resembles the sound of a bus or deisel truck… it might be ur fan clutch that’s going (my old VG did this)
>
> it sounds more like a whirring sound than anything.
I heard a similar noise from mine a while ago, and it was the fan clutch. Try spinning your fan manually (with the engine off of course). If it’s hard to turn, or you hear a weird noise come from it, you will need to get a new fan, or just replace it with a used one like I did (thanks to Bing and Chris). Don’t try and oil the bearing either, it’s sealed. Good luck.[/quote]
Note that the fan isn’t meant to spin freely, there is some resistance… just feel for any grinding or a stiff spot, something that would indicate bad bearings.