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The mkiv Supra Owners Club

Slight Ticking Sound


Wonga Spar

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Sorry, another problem query!

 

Bit of a weird one for any Supra-Sherlocks who fancy a brain tickler.

 

I get a bizarre clicking coming from the engine bay, have done since I bought the car.

 

- It's not a knock, or a rattle, it sounds EXACTLY like this - https://www.youtube.com/watch?v=zuzW50pnXCk

- It only occurs when under load, and is not rev-dependent.

- Generally seems louder when it's cold, but this could be me (or oil temp related).

- The timing between each "click" is completely consistent, but gets slightly louder the harder the throttle is pushed (regardless of speed).

- The easiest way to recreate the sound is to cruise at 40mph, put it into 4th and press hard on the pedal.

- I have zero way of accurately locating the source of the sound, as it's incredibly hard to place audibly, and only occurs while driving!

- It cannot be heard whatsoever when car is parked and engine idling/revving, again, it's the depth of the pedal press that causes it!

 

My permanent admiration and gratitude to anybody that can nail the cause!

 

Thanks!!

Edited by Wonga Spar (see edit history)
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na or tt?

 

if its na, you sure there is not an exhaust leak on the down pipe flexy or flange where it goes to the manifold...… I see this a lot.....

 

Was worried somebody would say that.... I had a full custom exhaust fitted by M-Tech (including downpipe), should that not have cured it?

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