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Air pump?

This is a discussion on Air pump? within the External Engine forums, part of the LSx Technical Help Section category; Taking the air pump off. The rubber hoses go from the front of the car where the pump is to ...

  1. #1
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    Air pump?

    Taking the air pump off. The rubber hoses go from the front of the car where the pump is to the driver side on top of the head. Then there is guess a valve the the rubber hoses go to and where the tubes form the headers go to. There is a small hard plastic line that gos to a sencer off of that valve thing and one that gos off of it and to the back of the motor then over to the passenger side. What is that line for?

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    silver
    2000 formula

    vacum line to the air diverter valve

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    Black & Blue
    '02 WS.6 / '07 Suburban

    Detailed removal instructions and pics in this thread: Secondary Air: Diagnosing and Removal

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    So all I have to do is block off that vacuum line the small line.

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    Yes. Another member traced it back, but I don't recall what he said. My best guess is that it ties in to the vacuum lines adjacent to the PCM. I just capped mine where it unplugged from the vacuum solenoid. Used an in-line connector and a vacuum cap, rather than shoving something into the line.

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