94 smog pump leaking

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Joined
Jan 29, 2003
Threads
363
Messages
8,428
Location
MH, IDaho
My 94 air pump for the smog system is leaking at the seam. I pulled the screws out of the top expecting to find a bad gasket. There was not gasket at all. Do I need a new pump or is this repairable. Gives a really funky sound as it sucks air in through the seam and my mileage has been crap. I thought it may have been 02 sensors but now I think it might be this. Maybe 02 sensors too?

OK, maybe I'm calling it the wrong thing. It is connected on the PS of the block, sucks air in from the air filter and connects into the lines with EGR.

I better go dig out the freaking manual. I don't know what I'm talking about.

I think it is time to put a diesel in. I have too many parts that I don't understand what they do.
 
PAIR VALVE is what is leaking.

And it looks like according to the factory service manual that this is not serviceable.
 
And then what?
 
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