seanicus

I have had an issue with the idle on my 1996 toyota T100 3.4L manual. When warm it idle at about 1800 rpms and im trying to rule things out. I just took off my throttle body and the IAC valve to test and see if they are all right.
RESULTS:
with 12 volts it snaps open and stays there after cleaning it but when I use the 12 volts to close it there is a gap about the width of a paperclip. I dont know how to tell if its closed all the way or not please help!

BamZipPow

It should be closed all the way with no gap.

Take the motor off and manually cycle the shutter with yer fingers as you spray some cleaner in between the shutter and the body.

You'll probably hear some crunching as the built up carbon breaks loose.

seanicus

Great thanks I have work the next few days but I'll post the results when I do it. Glad I might not have to buy a new one!

seanicus

I'v cleaned the IAC I believe as much as possible and the valve will close all the way when I push it closed but it just spring back open. I took off the motor while it was running and I guess it actually did close because the idle dropped to about 500 or 600.

Now I'm looking for a new IAC. Can I buy just the motor somewhere because the whole valve is very expensive and if not which vehicles can I get the same one from if I were to go to a junkyard.
THANK YOU
Seanicus
PS- I'm in school with a bad job so I'm low on funds right now lol

BamZipPow

Why do you need to buy a new motor? Didn't it work just fine before you took it apart?

Part 22270-62050 (VALVE ASSY, IDLE SPEED CONTROL(FOR THLOTTLE BODY)) was found on the following models:
Date range Model Frames/Options Found in diagram
11/1995-07/2002 TOYOTA 4RUNNER RZN18*,VZN18* 22-11: FUEL INJECTION SYSTEM
01/1995-08/2004 TOYOTA TACOMA RZN161,171,VZN160,170 22-11: FUEL INJECTION SYSTEM
01/1995-08/2004 TOYOTA TACOMA RZN140,150,19*,VZN150,195 22-11: FUEL INJECTION SYSTEM
08/1992-06/1998 TOYOTA T100 RCK10,VCK1*,2* 22-11: FUEL INJECTION SYSTEM
02/1999-09/2006 TOYOTA TUNDRA GSK30,UCK3*,4*,VCK30,40 22-11: FUEL INJECTION SYSTEM

seanicus

I ordered a new IAC and replaced the old one and believe it or not it continued to idle at about 2000 rps. Im going to make a new thread to try to find the actual problem.

thekeith86

kinda odd that it'll idle high when the motor is warm. usually in my experience it's the other way around. but check some sensors. iac, tps, 02 sensors, map sensor. all can go bad but not be bad enough to trigger a code. i have an iac problem every now and then. light came on and stayed on. pulled the iac off cleaned the s*** out of it put it back in and works well enough now. but if i start it up when it's cold drive a mile and stop usually it clicks on and my reader says it's the iac. but the light will go off after a couple drive cycles. if i drive till the motor is warm and stop the light stays off. sensor cost too much so i figure i'll let it be till it goes to complete s***. haha