I have heard you guys talking about an AIR pump. What is this? Is it something smog related on earlier 2.8's? Also, I looked in my Chiltons (I know, it ain't nothing compared to that other shop manual I cannot remember the title of) and it did not show a MAP sensor for my year and engine. Do I not have one, or does another sensor take it's place? Just curious.
Vman
Also later this week I am getting a 69 Camaro!!!!! I know it isn't a 3rd gen, but it is cool. It is all in pieces and I need to put it back together, but I just had to tell someone!!!! YEAH

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1989 Camaro RS
2.8 V6
K&N's
700R4 tranny
Cragar Street Pro rims (old Series 30)
Pioneer DEH-P3000

 

I believe We have a Mass Airflow Sensor instead.... MAF ... the 305s and 350s get the MAPs if i remember correctly... something to do w/ different ways of measuring air intake

 

yea a air pump is for smog porposes.what it does is inject air into the exhust manifolds, turnig to oxides of nitrogen into a non harmful gas, i belive NO2. the air pump runs of the crank driven by a belt and has think black ruber hoses coming out of it to you manifolds. good luck with your 69

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when the green flag drops the bull$hit stops

350,performer RPM intake ,650dp, 700r4, headers, 3inch exhast

 

Here's a fun fact; it appears that 85 and 86 2.8's with AUTOMATIC transmissions did not receive an air pump. The air pump was back on the '87 2.8 automatics, and it was on the 82-84 2.8 automatics. I wonder why 85 & 86 were different.

Your '89 should have it too, Vortex... let us know. Maybe '89 was a funny year for that too.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards

 

Well, if it belt driven, I don't have it. All I have on the serpentine system is (lookin from front of car at engine) is alternator in upper left, right next to it and a little below is the tensioner, upper right is AC compressor, below that is the PS pump, then H2O in middle, crank below, and lower left below alternator is just a plain jane pulley. Is that where the AIR pump should be? The way you guys talk, I guess I am glad I don't have it. Now if only I could figure out the MAP sensor thing!!!
Thanks for the info Tom!
Vman

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1989 Camaro RS
2.8 V6
K&N's
700R4 tranny
Cragar Street Pro rims (old Series 30)
Pioneer DEH-P3000

1969 Camaro SC
350 HO from a Vette
Turbo 350 tranny
In the process of being restored

 

Below that alternator should be the air pump, not a pulley. Hmmm... how did that happen? Cool! I wonder if the owner before you did something!

I found out my catalytic convertor was gutted when I bought my car.


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-Tom P (Hot rodded 1986 Firebird 2.8l) from http://www.f-body.net/mailbag/3rd/3rd_mailbag.html message boards