ISC and IAC questions

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My dealer recently told me that my ISC was sticking and should be replaced. Is that the same as the IAC?

How hard a job is this on a 2000 2WD 4Runner LTD with automatic transmission. I have only modest mechancal skills but am pretty good at following instructions.

Anyway, any insights or suggestions would be appreciated.

Thanks,

Phil

 

[brian2sun]

You have an IAC - not a ISC (which was used on 1st and 2nd gen trucks). That's probably what he meant though. Easy to clean or replace, it's screwed to the bottom of your throttle body. Search and ye shall find several DIY write-ups on here and yotatech. Here's one:
Re: 3.4L V6 Hard Start "hot" Cleaned IAC (Pics) - YotaTech Forums

 

[runrunner]

Try cleaning it first. It will give you an excuse to thoroughly clean the throttle body as well. Just make sure you get the two gaskets before hand. Pretty easy and straightforeward to do.

What type of issues are you having that the dealer is recommending the ICV be replaced?

Remember, delears tend to like to replace stuff vs repair.

 

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Brian

Thanks so much for the excellent view of how this is to be done. I will print out the links and take a look. Doesn't look too terribly difficult.

Thanks,

Phil

You have an IAC - not a ISC (which was used on 1st and 2nd gen trucks). That's probably what he meant though. Easy to clean or replace, it's screwed to the bottom of your throttle body. Search and ye shall find several DIY write-ups on here and yotatech. Here's one:
Re: 3.4L V6 Hard Start "hot" Cleaned IAC (Pics) - YotaTech Forums

 

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RunRunner

Thanks for the reply. This is a relatively new 4Runner for us...it is our second 2000 model. The dealer just told me that the ISC was sticking but not much more than that. Frankly, the car idles just fine so I am reluctant to have them do anything. My understanding is that when the IAC starts heading south, idling does as well.

You are right about the dealers. This is the same dealer who wanted to replace my electronic air conditioning control for $1,114 for the part and 2 hours of labor. I took the control out myself, opened it up, blew it out, ensured that the internal connections were clean and solid, put it back in and now everything works perfectly (I suspect a loose cable internally). The whole thing took me about an hour to do and I am pretty slow and careful.

Thanks again,

Phil

Try cleaning it first. It will give you an excuse to thoroughly clean the throttle body as well. Just make sure you get the two gaskets before hand. Pretty easy and straightforeward to do.

What type of issues are you having that the dealer is recommending the ICV be replaced?

Remember, delears tend to like to replace stuff vs repair.