I have free time so I plan on taking off the IAC and cleaning it but after looking at it, I dont see how i can fit a big enough wrench in there. Do you guys have any suggestions on how to do it. It seems like a bracket holding the alternator could be removed because it is in the way. I also already removed the intake assembly connecting to the throttle body. What do you guys usually do.

By the way this is a 1987 IROC 5.7 TPI 350

 

can anybody help me with some suggstions?

 

deep well socket ??

 

Rosadoc,
I also have an 87 iroc, 5.7 TPI. I've replaced my IAC in the past. I originally tried to use a socket, but couldn't get it in there because if clearance issues. If you want to give it a try, you will need a 1 1/4" socket. most likely it will have to be a deep socket, but not necessarily. I simply used a pair of channel locks from the front to remove the IAC, there is plenty of room to get them in there, and the IAC is not so tight that you will chew it up with channel locks. If you are uncomfortable with pliers, use an open-end 1 1/4" wrench. The alternator bracket can remain in place. The only component I had to remove to get to the IAC was the air intake assembly. Take the entire thing off, from the air box to the the duct that meets the throttle body. It won't take more than three minutes. That will allow you to access the IAC if you decide to remove it my way. When installing the IAC, don't forget to measure the distance from the tip of the pintle to the valve body(no more than 1 1/8"). Good luck.

 

thanks 87IROC for the details. Hopefully your advise will come in handy when i try to remove it this afternoon

 

Hope so, man. Let me know.

 

Remove the TB?

 

No need to remove the throttle body for such a simple procedure. The job does not justify the work, and it is unneccessary.

 

yeah, i just used channel locks from the side of the IAC and it came off easily. Thanks for the help.

 

Any time , man.