Screeching Sound

[jhatter]

I have a C5, diesel, 110bhp, 2.0 hatch. 52 reg (2003). 55k

 

I have recently noticed that it has started to make a screeching sound. This happens after I have been driving for about 30 minutes, at speed (60-70mph), usually up the motorway. The sound is then intermitment and goes when I reduce my speed. It is not present when I park up.

 

Any ideas what this may be please?

[coastline taxis]

I have a C5, diesel, 110bhp, 2.0 hatch. 52 reg (2003). 55k

 

I have recently noticed that it has started to make a screeching sound. This happens after I have been driving for about 30 minutes, at speed (60-70mph), usually up the motorway. The sound is then intermitment and goes when I reduce my speed. It is not present when I park up.

 

Any ideas what this may be please?

Does the screeching apear to come from the front , back, or engine bay when screeching if you press clutch pedal down does noise go off. and are you sure its a screeching and not a whistling

[kfk]

if you apply the brakes at that speed does the noise dissappear? have you had anything done to the brakes/front hubs recently....cant remember off hand but is there a metal shield over the bottom ball joint?.....when the discs become hot could they be expanding and touching the shield?

 

Some thoughts for you.....let us know what you find

[jhatter]

Does the screeching apear to come from the front , back, or engine bay when screeching if you press clutch pedal down does noise go off. and are you sure its a screeching and not a whistling

Hi,

 

Thanks for your reply. I think it sounds like a screech. It has happened twice on ignition and I have got out of the car, it appears to be coming from the engine bay. The one time I got back into my car, put it into reverse to get out of my parking spot and it immediately went off. Don't know if that was a coincidence.

[jhatter]

if you apply the brakes at that speed does the noise dissappear? have you had anything done to the brakes/front hubs recently....cant remember off hand but is there a metal shield over the bottom ball joint?.....when the discs become hot could they be expanding and touching the shield?

 

Some thoughts for you.....let us know what you find

Thanks for your reply.

 

I've noticed that the noise sometimes starts when I break at high speed.

 

The most recent work I had done was the outer CV Gaitor was replaced (hope that means something to you). After my 50k service Citroen suggested my alternator belt was starting to break up. I took it to another garage and they said it looked OK.

[kfk]

Have you checked to see if the metal shield around the lower suspension ball joint is close too or rubbing on the inner face of the disc?

 

When the brakes get warm they will expand and get fatter they could be making contact.

[davidad]

I'd check that alternator belt first.