Buzzing noise

arkoso · Post by **arkoso** » Sun May 10, 2009 9:47 pm

iHey guys realy need some help ...

Just today when changing through the gears and starting to accelerate through the revs there is a real bad buzz like an angle grinder or an electric shaver.
Any ideas.? Im real desperate

arkoso · Post by **arkoso** » Mon May 11, 2009 12:47 am

Well I gathered all my courage and rolled the FTO down the road ... no noise ... thought I'd get some speed up and sure enough there we go. It looks like it can still be driven, however the noise is still there. Between 2000RPM and 2500RPM to be exact, every time without fail. If I accelerate faster through that range then the noise goes faster and disappears at the 2500RPM mark sure enough, every time.

Now although it can be driven this concerns me a lot. I checked under the car as well as around the tires and there is nothing hanging or coming in contact.

Another forum on here discusses this in depth but never comes to any resolution. They describe the noise as like poking a playing card into a fan or a turning bicycle wheel.
To me it sounds like its coming from behind the dashboard. A passenger describes it as being in the bottom of the center console/to the right of their feet.

Any ideas anyone?

Post by **I8A4RE** » Mon May 11, 2009 8:03 am

Exhaust heat sheild??

Seriuosly without hearing it, it could be a million different things.

Does the noise happen when you rev the car at said revs or just when your moving?

arkoso · Post by **arkoso** » Mon May 11, 2009 8:59 am

It happens when actually revving - and when you take your foot of the peddle it seems to rattle away.

Post by **I8A4RE** » Mon May 11, 2009 9:04 am

So jack the car up, put axles stands under. then get someone to get in the car and keep revs between 2k and 2.5k while you get under neath with a torch and see where its coming from.

Im guessing its a heat sheild from the exhaust

arkoso · Post by **arkoso** » Mon May 11, 2009 12:46 pm

I don't have the equipment to do that so I will have to get it booked into somewhere. I have a feeling a mechanic is going to just be having stabs in the dark however.

ft04me · Post by **ft04me** » Mon May 11, 2009 5:08 pm

ill take a stab at it and say its your cat/muffler...

Post by **aza013** » Mon May 11, 2009 5:33 pm

did you have the sterio on at the time even with the sound right down ?

arkoso · Post by **arkoso** » Mon May 11, 2009 5:47 pm

aza013 wrote:did you have the sterio on at the time even with the sound right down ?

Yes it was on when I first noticed it and got progressivly louder. I thought it may have been a scratched cd at first its a bit like what it sounded like but no as I described it above I knew that mustn't have been it.

Post by **Bennoz** » Mon May 11, 2009 5:48 pm

Im gonna take a stab in the dark & say the heat sheild round the cat.

I don't have the equipment to do that

No jack in the boot?

arkoso · Post by **arkoso** » Mon May 11, 2009 6:12 pm

I'm at work at the moment but I will check when I get home. If I do (i think it might) it will only be a really basic jack I'll have to see if it can do the job or not then.

arkoso · Post by **arkoso** » Tue May 12, 2009 8:42 pm

I8A4RE, Bennoz - thanks heaps for the advice, I knew that the heat shield was a possibility but in my pessimism thought it was going to be much much worse ...

Turned out it was just a bit loose and that was all, so I'm now back on the road. Cheers guys.

Post by **Bennoz** » Tue May 12, 2009 9:02 pm

Thats what we're here for.