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8/5/17 6:02pm - Original Message: '82 IAC question please'
Kimchoc
Limited Member
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Virginia beach, VA - USA

Vette(s):
94 standard coupe

Joined: 7/30/2017
Posts: 1
I'm coming into this repair as about the 6th mechanic. They cant fix this car. I dont own the car, just volunteering my time. Car has numerous issues that I've been studying in your forum for the last two weeks. Read nearly every and any thread you have on this CFI system. Read over at third gen too.I dont even want to get into those issues at the moment. LOL I prefer to read your suggestions and work that way but I'm stumped.
My experience is on the CCC system on my 82 El Camino, '94 Vette OBD1, '96 Blazer OBD2, and of course quadrajets. I was NAISE back in the day.

Simple question,#1, regarding the IAC's and a physical examination. I read in these forums that you can look down the little hole in the TB and see the pintle move. This makes no sense as the chamber, on the car I'm working on, for the pintle seat is on the other side of the visual hole. The chamber is to the front of that IAC hole. The seat cannot be visible on the TBI that I have. Stock TBIs as I understand and I believe them at the moment.

And #2, I took the IAC out to clean and examine. Should the shaft move with a spring tension? Mine doesn't budge, on either .  This vette is at a shop. Owner of shop said go upstairs and look on another CF engine, get the IACS for comparison. I did. One of them is quite a bit longer and moves freely with spring tension. The other is longer than the two I'm working on, not by much, but is also not moving with any spring tension. What should a physical examination of a proper IAC look like? Movement? How much? Is there a measurement?
No questions on the operation at this time. I'll get to that later if I have to.

Thanks,
Gary B.
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 Forums -> C3 Fuel, Emission Control, and Exhaust Systems
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