Secondary air injection pump?

2001 GMC JIMMY
256,735 MILES • 4.3L • 6 CYL • 4WD • MANUAL
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GIOVANNI23
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I don’t know where those hoses are connected to for the secondary air injection pump, but also the car has many problems when I turn on the fan and I start driving, it makes a big room noise or even when I’m going on a high speed it makes a big room nice as well so I don’t know what can it be.
Jul 14, 2025 at 7:41 AM
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STRAILER
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Please start a new thread for the "big room noise" because we only handle one question per thread. Here is how the air injection pump hoses go. Check out the images (below). Let us know if you need anything else.
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Jul 14, 2025 at 8:36 AM
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GIOVANNI23
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Oh okay, thank you. where is those are location to?
Jul 14, 2025 at 8:47 AM
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STRAILER
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They go to the air pump which is in front down low by the frame.
Jul 14, 2025 at 11:13 AM
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GIOVANNI23
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I mean where are those needed to be connected to.
Jul 14, 2025 at 6:08 PM
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STRAILER
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This is what it connects to.
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Jul 14, 2025 at 7:02 PM