Thaddeus

Hey,

I am wondering where this dang thing is. Archives brought me no joy. Do I have to remove the whole manifold to get to it? Anybody got a pic of the unit in situ, or is there a writeup?

Thanks

Thaddeus

Shane

It is on the passenger side of the throttle body under the big fat "T" in the middle of your intake.

Thaddeus

Great.

928drvr86.5

It's not too bad, i did mine a couple of years ago. The biggest pain is the cost of the new stabilizer in my opinion.

sharkmeister85

This was discussed not too long ago. It can come out without removing the intake. It's tight, but doable. Check the hoses attached for leaks and replace if needed (probably). I think one of them may not be replaceable without more disassembly (ie. pain).
Glenn

Glen McCartney

Thaddeus, sent you a PM

SteveG

In that previous thread, I said you had to remove the intake. Apparently you don't for the ISV. Didn't you say all other vacuum hoses had been refreshed?? I'm puzzeled, there are other hoses off the throttle body at the bottom of the valley that I could not have gotten w/the intake in place. Maybe I just was intent on removing and cleaning the injectors and can't remember anything else. Anyway, good luck.

Big Dave

This is it:

jeff jackson

If you remove the air cleaner box...the MAS, and the Big "T" section of the intake, you "should" be able to get the IAC loose, and off the engine, without pulling the rest of the intake...Heres a tip though...if you find that you "DO" need to remove the intake, to deal with other while your at it type items...7way vacuum splitter,and cam cover vent hoses come to mind... anyway, order your new intake gaskets from Pelican Parts....they still have the paper intake gaskets for your 86.5, and that will cost you about $10...IF...you order from the east or west coast vendors...you will get the metal "shim" type gaskets, that go for a "staggering" $54 per 2 port section, of which you will need 4...totalling $216...FOR a SET of INTAKE GASKETS !!! Ask me how I know this... Anyhooo...$10, vs. $216...you do the math and see which deal you prefer...

Big Dave

I'm raising an old issue, but where should I squirt the WD-40/carb cleaner to get at a sticky ISV?

The hook-shaped hose wouldn't work (I assume) since that's the stabilizer's exit path. Shouldn't it be shot into the entry path so it actually passes through the ISV? The goal is to be able to lubricate the ISV without having to remove it or the intake.

Curious.

jeff jackson

Dave..if your car is an 86 (I think thats right isn't it)...if so, pull the center "T" section of the intake, and the large hose that is connected to the throttle body, and "hooks around the throttle body to the passenger side (at the rear of the throttle body)...is the hose going to the "inlet side" of the IAC valve...the outlet fro the IAC valve, just turns down, and reconnects at the base of the throttle body, below the throttle plate.

Big Dave

I'm confused. I thought that the connection above the throttle plate feeds air into the engine (i.e., sucked in by the engine's vacuum) since it's open to the rest of the intake. Doesn't the section below the plate receive air that has just passed the filter and MAF?

jeff jackson

Nope you are right...the intake air is coming UP from below the throttle plate...and being diverted from the the throttle body baseplate connection, through the IAC, through the "hooked" intake air tube to the throttle body "above " the throttle plate by the IAC valve. SO...if you "WERE" to add the WD-40...you would have to do it to the "short "elbow" hose from the base of the throttle body housing, to the IAC valve. Pretty darn hard to do this, without rigging up some sort of "remote access" port to squirt the WD-40 into. Thanks Dave...for making me "think" about this a little bit... But you WERE right all along,

OR...you know where the"Vacuum Jet valve" is along the driver side cam cover ? the nipple that the large Power Brake vacuum hose connects to, feeds back to the baseplate of the throttle body. So...if you were to squirt the WD-40 into it...it could/should get sucked into the IAC if you start up a cold engine after squirting the WD-40 into this hose...

Thaddeus

No, I refreshed all the hoses I could get to (plus one I could never do again the way I did it, I'm sure), and vacuum tested the ones that were doable.

I suspect I'll be going in for the whole hog soon enough if I don't definitively find the fix.

Thaddeus

This is as much of the intake I got off last time when I did my partial refresh of the vacuum lines..