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The mkiv Supra Owners Club

Ticking thing


DArby
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Had the bonnet up today - rare occurance...

 

Up in the top right above the brake system, is a black box with 3 pipes going into it - brake pipes i assume.

 

As i went to close the bonnet (it had been open for about 1hr) - i could here this fast fairly quite ticking sound. If i wiggled one of the pipes it stopped. I gave everything a wiggle and could stop it, but as soon as i let go it started again.

 

Theres no leaks visible, cracks/breaks etc....

 

Any help appreciated.

 

 

 

Dean..

 

(UK car by the way)

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Guest Martin F

 

Sounds like the Carbon cannister to me.

 

Black with three hoses going in the top. It's supposed to filter off noxious emmisions from a few places, one of them being petrol fumes from the tank.

 

Not sure why it should be ticking though, unless it was just very hot, what with the recent weather.

 

Anybody else know why it ticked ?

 

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That's normal, they do make a tick-ticking noise occasionally. It's just venting pressure back from the fuel-tank through a one-way valve. Depending on actual pressure-differentials this valve can sometimes tend to flutter.

 

Yours,

J

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