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Turbo Wastegate?


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#1 Peter Wilks

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Posted 16 May 2012 - 10:11 PM

The engine is a 1AD-FTV, does it have a separate wastegate or is it part of the vane actuator? I've got an intermittent boost problem which sounds like a hole in the boost pipe but ive checked all the pipes and they are ok, i was thinking could a wastegate be sticking and causing this air leak sound? or the turbo not boosting enough?

Pete

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#2 igormus

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Posted 17 May 2012 - 05:42 AM

The engine is a 1AD-FTV, does it have a separate wastegate or is it part of the vane actuator? I've got an intermittent boost problem which sounds like a hole in the boost pipe but ive checked all the pipes and they are ok, i was thinking could a wastegate be sticking and causing this air leak sound? or the turbo not boosting enough?

Pete


hi Pete
what are your usual observations -- how does engine start ? any smoke exhaust? check with tail pipe condition -- deposits covered inside ? Check with flexibility of all vanes drive especially how do they rotate on each vane axis ? regards / Igor

#3 toyota diag tech 1

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Posted 17 May 2012 - 05:26 PM

The engine is a 1AD-FTV, does it have a separate wastegate or is it part of the vane actuator? I've got an intermittent boost problem which sounds like a hole in the boost pipe but ive checked all the pipes and they are ok, i was thinking could a wastegate be sticking and causing this air leak sound? or the turbo not boosting enough?

Pete



#4 toyota diag tech 1

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Posted 17 May 2012 - 05:33 PM

Hi your turbo is vn type which doesnt use a conventioal wastegate .the ad engines are prone to leak in the charged air side of turbo .check the short tube at intake shutter ( t body )while somone boosts turbo by accelerating .they generally leak there also pipes pop off partially at intercooler and leak under boost at extreme loads


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