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Discussion Starter · #1 ·
When i Start up my truck in the morning and head out on the road, I can hear air blowing under the hood. I have no boost pressure until I step on the throttle then the sound will go away and then the boost will come up. Once I back off the throttle the sound will come back and boost will go away. It continues to do it until the engine is completely warmed up. Can anyone please help and give me some ideas. Thank you
 

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I think KLHanson answered this in your other thread.
 
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