What the ..?
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Senior Member
Joined: Oct 2002
Posts: 530
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From: Nazareth, PA
Car: 87 GTA
Engine: L98
Transmission: 700R4
What the ..?
I was under the hood today working on the intake system, getting it ready for my new parts. All of a sudden I noticed the outer pulley groove on the crank pulley was empty. The culprit was the A.I.R. pump. It had no pulley on it.
So I am obviously running without it. Do I really need it? What does it do? If I don't need it, I'm sure there are other parts not doing a thing. What would they be? I know it's an emission thing, but I don't get tested so that's no problem(my cat is gutted anyway) Any views or answers would be greatly appreciated
So I am obviously running without it. Do I really need it? What does it do? If I don't need it, I'm sure there are other parts not doing a thing. What would they be? I know it's an emission thing, but I don't get tested so that's no problem(my cat is gutted anyway) Any views or answers would be greatly appreciated 
Joined: Mar 2000
Posts: 43,187
Likes: 42
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
No problems unless/until you have to go through an emissions inspection and/or test.
Supreme Member
Joined: Jul 2001
Posts: 1,766
Likes: 2
From: New Palestine, IN (Just East of Indy)
Car: '85 Z28
Engine: 305
Transmission: WC T5, 3.23 posi
You don't need it. What it does is it injects air into the exhaust to burn up unburnt fuel. You can go ahead and take off the AIR pump, and the lines going to the manifolds. You will have to plug them then, but I'm not quite sure what size caps you need.