Strange noise from LCR exhaust

[richybigman]

Hi,
I just got home and i noticed a strange noise coming from the back of my car.
The exhaust is making a squealing noise (like the noise of a slipping belt).
When i put my foot against the tip to stop it from moving the noise goes away.
But here's the strange thing, it only makes the noise when i have the aircon on.
I'm thinking it may just be a mount squeaking but was just wondering if anyone had any other ideas?

Also i don't know if this may be relevant but my car nearly always goes into limp mode when i have the aircon on.

Any help appreciated
Cheers
Rich

 

[Lodgey180]

well something dont sound right lol

maybe the clutch mech on the compressor is broke ? that wouldnt explain why it would go away when touching exhaust though

hmmm

 

[richybigman]

The noise is coming from the exhaust at the back of the car.
No noise from engine area at all.
It is a wierd problem.
Plus the aircon causing limp mode is really pi$$ing me off, lol.

 

[richybigman]

Anybody else?

 

[richybigman]

Nobody any ideas?

 

[Willie]

Now thats a strange one.
Have you had a close look at the air con pump to see if the clutch is alway engauged?
How are your engine mounts and DBM?
The only explaination for the noise going away when you push on the exhaust is that it is leaking and pushing on it closes the leak/gap.
As for the air con causing limp mode, very strange.
Never heard of that one before. Have you spoke to your mapper

 

[richybigman]

The noise is coming from the back of the car, i'm gonna have a look later to see if it's the exhaust mount makeing the noise due to the exhaust moving more due to the aircon being on.

Do you think it could be the map causing the limp mode with aircon on then?
I have Revo stage 2 done by JKM, i think i'll shoot them an email.

 

[Lodgey180]

is your exhaust in good condition ?? any leaks or anything? maybe lose baffles.. i bashed my centre box on my 206 before and it made a horrible noise when it warmed up

 

[richybigman]

If i don't have the aircon on it sound perfect, no strange noises at all, only when the aircon is on.
The exhaust is in good condition as far as i know. I have a blueflame downpipe and 100cell cat mated to a Magnex cat back.

 

[richybigman]

I thought i'd update this thread.
The noise isn't there anymore and my car isn't going into limp mode anymore.
I had to replace a silicon hose that had a small split on the connection and also JKM found a wire with a bad loose connection. So all seems to be good at the moment

 

[Willie]

All good then