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Actuator Sticky ?


OzTEXS

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  • GONE FULL WIZARD
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  • Member For: 15y 10m 21d
  • Gender: Male
  • Location: 720 East Kensington Road

Sounds like the boost cut, I have experienced that before, fark its a whole lotta fun before it cuts though :)

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  • Member For: 17y 7m 15d
If the actuator is sticky the turbo is unable to bleed boost from the system when directed by the engine management computers.
The result is that:
1- at lower revs and throttle openings the boost continues to build and the engine develops significantly more torque than normal. You might find that on cold mornings traction seems to be a bit off and the rear end is a bit squiggly. When tooling around in the traffic just minding your own business, at 2-3000 rpm and light throttle openings you may notice the strange sight of previous version AMG63 and 911's making lots and lots of engine noise, and, somehow disappearing in the rear vision mirror rather briskly.
2- at slightly higher revs you may see - even more exotic cars going backwards, likely accompanied by backfiring and the sight of your engine components strewn across the road.
Ford cannot sell you the actuator. Ford can only sell you the complete turbo assembly at something like $7,500. This is not really a problem as Ford are clearly signally that they do not want to stock masses of this component and so they keep a couple of units in the warehouse to comply with parts supply legislation and then price them at a level so that no one will ever deplete the stock.
You should therefore go elsewhere for your actuator, like the people who developed and sold the turbo and actuator to Ford in the first instance, Garrett. You can buy the Garrett OEM actuator as supplied to Ford for about $150 delivered.
Do not be tempted to use another higher boost actuator. Use of this type of acutar without the appropriate tuning and parts might result in a repeat of scenarios one and two above.

this was classic !!

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