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The mkiv Supra Owners Club

Power steering vacuum valve


berg

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Are there any side effects from blanking this off?

 

My new intake manifold is fouling the nipples on the end ever so slightly

 

Not to mention the throttle body/inlet doesnt have any extra vac sources to run to it

 

Can it be blanked off or does it need keeping?

 

Ideally capping the ends will be no good for my setup i would need to remove the valve and put a bolt in its place if i can do that

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Are there any side effects from blanking this off?

 

My new intake manifold is fouling the nipples on the end ever so slightly

 

Not to mention the throttle body/inlet doesnt have any extra vac sources to run to it

 

Can it be blanked off or does it need keeping?

 

Ideally capping the ends will be no good for my setup i would need to remove the valve and put a bolt in its place if i can do that

 

Might be wrong on this but I'm sure the vacuum valve creates pressure to stiffen up the power steering at speed, so the steering isn't so light! Again might be wrong on that!

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When the PAS hydraulic pressure rises above a set amount the valve opens and bypasses a small amount of air around the throttle valve to raise the idle speed slightly as the pump loads the engine. It reacts faster than the dampened IAC valve. You can remove it all but you may find the engine prone to stalling or suffering a very low idle speed when manoeuvring.

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