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engine question..

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Old 03-13-2003, 02:29 AM
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engine question..

what in the world is that black plastic box that is in between the ac canister open element cleaner, it has a hose coming out of it, i hate it, as well as the space cadet looking thing under the air cleaner that loosk like a mushroom
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Old 03-13-2003, 03:16 AM
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its part of the air pump, just remove it.
Old 03-13-2003, 10:29 AM
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does it affect the heater??
Old 03-13-2003, 12:10 PM
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the box doesnt

you do know your chrome breather can stick straight into the valve cover, you dont have to leave that pipe sticking up......unless you want to
Old 03-13-2003, 01:05 PM
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Car: 91 RS (Sold 90 IROC) 07 Avalanche
Engine: RS 305 TBI
Transmission: RS 700R4
Axle/Gears: 3.42
what in the world is that black plastic box that is in between the ac canister open element cleaner, it has a hose coming out of it, i hate it
It's an air diverter valve. It's part of your emissions control system.

Last edited by TimRS; 03-13-2003 at 01:09 PM.
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