X99es300X

Ok so I replaced the gasket and cleaned everything to make a better surface to seal. Car runs a lot smoother now with no high idle but still a small leak of coolant from what seems like one of the IAC screws, here are a couple pics.

808mcv20l

Ok great at least the vacuum leak should be fixed.

There shouldn't be any coolant in that screw hole.

From the looks of it, it looks like it's from the hose to me. your clamp should be a little further back, it shouldn't be butted up like that.

Also you can try inspecting that hose for cracks or replace the clamp with a screw type one.

X99es300X

Hmm so if from that hose the coolant is basically shooting up towards that screw to make it seem like it's coming from it? Cuz the hose is under the screw but I will check it out and move the clamp down a bit and check the hose it self

X99es300X

So I am almost 100% sure the leak is coming from the throttle body and not the hose
Not sure why.

ES300NZ

the only coolant running through the throttle body is on the underside, there is a very small area which is 'wet'. there is very little that can go wrong, so go ahead and disassemble it, clean everything, and put it back together with a better seal (from a tube if you want).

X99es300X

Should I put the gasket and sealant as well? Also which one should I use for that?
I have put it together about 10 times now haha cleaned it also still leaking.

X99es300X

Also anyone know the part number for that gasket? Can't seem to find the right one only one I see is the felpro 61020 which looks wrong

808mcv20l

I thought you changed the idle air control gasket?

the oem gasket part# is 22215-20010, the felpro equivalent is:

you have dual throttle bodies?

does it look like this:
http://www.lexussouthatlantaparts.co...driveLine=8064

try look at parts 22222 and 22221A.

X99es300X

Yes I did change the IAC gasket, the one I didn't change was the metal gasket 22221-A
And yea I have the dual throttle bodies
So was wondering what other then the gasket can I use to deal with the metal gasket

X99es300X

So quick update
the cause of the leak was a little o ring seal that goes around that coolant hole. prolly feel out when I took it off and had no idea there was one there.
Well no more leak but now I the engine or around the engine its making a weird noise.
sounds like a rubber pump the noise and every like 3-4 seconds the fan looks like it wants to stop and once it get close to stopping it starts back up
ill try to record it and post it later but any ideas as of for now?


thanks

X99es300X

So here is the noise im talking about and also a second noise when you see the camera move to the other side of the engine.
thank you for any input

X99es300X

Im guessing no one wants to click that link, no problem lol
Here is a youtube video

So if someone knows what that sound could be please let me know

thanks

ES300NZ

I couldn't even guess what that is, but it doesn't sound good. it sounded in time with compression to me. that needs real attention, .. it could be something minor .. it might not be.

X99es300X

So quick question, I think like 90% that I didn't connect the air hose to the iac. Would that cause anything like that?
It's late now so gonna check it in the morning

jenga

Check the hose that runs from the PCV valve to the air intake manifold. That pulsation sounds like a PCV valve.