How to clean idle air contol - 2001 Toyota Avalon

Hi curt.here's a link on your idle contol valve. SAVE 20 ON ONLINE SHIP TO HOME ORDERS OF 100 OR MORE Here's a new one from Autozone,click on their ads to see. http://www.autozone.com/engine-management/idle-air-control-valve/duralast-idle-air-control-valve/isuzu/truck-2wd/1991/4-cylinders-e-2-6l-fi/931859_0_0

try and clean the throttle body and throttle plate and the idle air contol valve

when you turn on the AC- the idle evens out because the ecm instructs the Idle air motor to increase the airflow into the throttle body to maintain idle speed under the increased engine load. The idle air motor is defective on your car- it does the same function as a valve but is actually a small motor...

clean the iac motor ( idle air contol) or replace it it sits right on the side ot throttle body about 4' long round with a 2 wire plug going in the end of it and has 2 8mm or 10 mm bolts holding it on take it off and clean it with carb cleaner

the device that controls your idle speed is called the idle air contol valve, or IAC. it gets gummed up with deposits that will need to be cleaned out. buy a can of spray carb cleaner and clean this valve. you may need some TORX bits to remove it. also clean the throttle bore and butterfly plate with an old tooth brush, carb cleaner and some towels. use the remaining carb cleaner to search for vacuum leaks; spray on vacuum hose connections and elbows, the idle speed will change if you spray on a leak. dont over do it because the carb cleaner is quite flammable- save your eyebrows.

The problem might be with the Idle Air Control valve. This component is mounted on the throttle body and as its name implies it contols the engine idle speed anytime the accelerator is released.

One thing to try is to have the IAC valve removed and with a throttle body cleaner, clean the IAC valve and the idle air bleed port on the throttle body. If doing this shows no improvement with the idle, then the IAC valve may require replacement.

your IAC idle air control sensor is probably gunked up and if it is so is your throttle body...also check all vacuum line for integrity..i found a bad hose going to my MAP sensor..both of this caused problems.
Clean the IAC with throttle body cleaner not carb cleaner, and dont clean the map sensor its contolled by air vacuum, just replace the hose if found cracked, if its bad you have to replace it it cant be adjusted.

check your iac (idle air contol) It is located on the throttle body

The Idle Air Control (IAC) motor, attached to the side of the throttle body or check out auto zone.com manual it show the iac
http://www.autozone.com/autozone/repairinfo/repairguide/repairGuideContent.jsp?chapterTitle=Components+%26amp%3B+Systems&partName=Engine+Performance+%26+Emission+Controls&pageId=0900c1528021e78d&subChapterTitle=Idle+Air+Control+Motor&partId=0900c1528021e705

I am guessing here w/o much info, 1 of maybe 4 things, idle speed contoller motor, low fuel pressure, dirty air filter, or lastly, carbon buildup on the throttle body throat. When cold idle the carbon blocks off the little needed air and the engines will run rough or just die.