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Posted

New problem, when starting the car cold it idles a bit rough and I hear a ticking noice from the electric box on the throttlebody?

It runs rough about 30-45 seconds and then it runs smooth and the ticking stops exactly at the same time the idle goes smooth!?

 

Doesn't sound normal to me, is it servicable?

 

 

Posted

I am not sure about this so hopefully others may also offer advice.

 

The ticking noise may just be the stepper motor adjusting the position of the throttle plate to control the idle speed. You had previously stated the throttle plate and body is clean without any carbon build up, so there may be nothing wrong with this but the rough idle may be caused by something else.

  • 1 month later...
Posted

Timing chain slack (stretched) and/or hydraulic chain tensioner waiting for oil pressure to build ?

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