C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Air pump

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Old May 30, 2002 | 05:27 PM
  #1  
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tikiltd
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Default Air pump

What's an air pump?

Mechanic says my air pump is making noise and I can hear a soft whirring type sound in the engine area.
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Old May 30, 2002 | 05:34 PM
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Default Re: Air pump (tikiltd)

It s on the drivers side of the engine bay by the alternator. If I am correct it is used to pump air into the exhaust to get everything up to temp. A-lot of people get rid of the air system myself included
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Old May 30, 2002 | 06:43 PM
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Default Re: Air pump (Rob90)

That is where it's at but I think it's really for making sure there's enough O2 in the exhaust to make CO2 instead of CO.
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Old May 30, 2002 | 11:51 PM
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Default Re: Air pump (jmr302)

cool. more?
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Old May 31, 2002 | 12:07 AM
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Default Re: Air pump (tikiltd)

That noise is normal for the pump. I should last only for a few minutes untill the engine warms up.
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Old May 31, 2002 | 12:31 AM
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Default Re: Air pump (Kizmo)

might as well just get rid of it, put a pulley in or gut it
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Old May 31, 2002 | 09:34 AM
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Default Re: Air pump (vader86)

might as well just get rid of it, put a pulley in or gut it
It can't be replaced by a pulley, it's electrical. You can disconnect it though, it's only active at startup.


[Modified by Kizmo, 1:35 PM 5/31/2002]
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Old May 31, 2002 | 09:54 AM
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Default Re: Air pump (Kizmo)

It works in open loop to divert air via the exhaust manifolds to the cats to get them up to temp. quicker. It runs for a max of 4 minutes or until the system goes into closed loop. Hopes this helps.
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Old May 31, 2002 | 12:54 PM
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Default Re: Air pump (Kizmo)

might as well just get rid of it, put a pulley in or gut it

It can't be replaced by a pulley, it's electrical. You can disconnect it though, it's only active at startup.
these air pump eliminator kits only put a small pulley in there
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Old May 31, 2002 | 12:55 PM
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Default

See air pump above alternator....



See air pump gone and replaced with eliminator...

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Old May 31, 2002 | 02:51 PM
  #11  
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Default Re: (scorp508)

Another one for you...well worded there scorp

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Old May 31, 2002 | 08:24 PM
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Default Re: (scorp508)

Oop's sorry, the air pump on an LT1 is different, my mistake. :conehead
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