I need to know how to clean both, my car will start after several attempts. will not idle at first. when it does start it dies, try again and push the gas for at least 5 minutes and it will run. when i get to my destination and turn it off it will start right back up with no problem. i thought it was the alternator but i took the positive cable off my battery and it still runs. I have been on the internet checking things out and it looks to me like the iac and the throttle body needs to be cleaned. I have lost my repair manual abd i live in a small town and i am scared to drive to far. any suggestions.
toyota camry 2000 le
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Re: iac and throttle body
Cleaning the throttle body is no big problem; simply remove the air filter box, and remove the tube from the air filter box that connects to the throttle body. Spray carb cleaner on the flap valve and all around the flap valve. Regarding you idle condition, cleaning the Idle Air Control valve (IAC) may do you no good. Once it fails, it is usually done. You prob need to install a replacement IAC. It is UNDER the throttle chamber, you will see it when you remove the air tube to the throttle body. I change several of these a month. Common failure.
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sounds like its not getting enough of fuel. check or replace fuel filter. this will cause vehicle to die out at stops because when you come to a stop. the dirt settles to bottom of filter, and then its like it chokes out the fuel supply. Hope this helps! the reason it runs in netural, is because the engine is not under load.
Check A.I.S./I.A.C. motor on throttle body. Known by both names, Automatic idle speed motor (AIS) Idle Air control (IAC) . Usually mounted on side of throttle body, with 2 or 3 torx screws and it's job is to adjust idle at all times as necessary, such as when AC on, turning, etc when extra load on engine, it will increase idle as needed to overcome the load and maintain proper idle speed. You can often remove the motor and clean pintle (pointed end that goes inside throttle body) with throttle body spray cleaner as well as spray inside the port (hole) that it comes out of. Sometimes this will cure the problem for quite a while, but if only for a short time, and it happens again, replace it.
yea id definately try cleaning ur throttle body 1st. My 03 1500hd had the exact same bad idle after my battery went bad it would die at lights unless i kept foot on gas i cleaned throttle body runs perfect now took 30min cost 8$ for cleaner at autozone and theres how to videos on you tube
there is an idle control motor on the throttle body. If you pull the air tube off of the throttle body and look to the rear of the throttle butterflies you will see the passage for the air to flow through to the idle air control motor. You should also see the tip of the pintle of the IAC. Use a screw driver and carefully push/pry the pintle back into the throttle body.
If the vehicle starts and idles than remove the IAC (2 torx screws hold it to the throttle body) and clean it with some carb spray. Clean the bore that it sits in as well with carb spray.
If the pintle on the IAC looks like it has wear marks in it replace it.
This is a fairly common problem with the dodge trucks.
Try cleaning your IAC (idle air control) Valve, it's located in your throttle body and is easily cleaned by spraying throttle body cleaner through the throttle body and IAC passageway in the throttle body's opening. Start with that and at worst, your IAC is worn or too carbon up to be cleaned and will need to be replaced.
Thank you for using Fixya and good luck
Check your Idle air control (IAC) valve wire leads. It's located on the throttle body, the other thing to is it may be dirty and will need to be cleaned with throttle body cleaner. That is just simple cleaning out the throttle body through out, paying attention to the IAC passage way in the throttle body intake. Once you cleaned out the carbon that should help your idle problem, the other thing that would cause this a dirty EGR valve and it's stuck. The EGR can also be cleaned with Throttle body cleaner by removing it and reinstalling it once all the carbon has been cleaned out. replacing the fuel filter also would not help and that is located in the inside frame rail under the drivers side and takes about 20 min to replace. Start with the simple and replace the fuel filter and clean and inspect the IAC at the throttle body. Good luck and keep me posted.
It sound like your idle air control (IAC) valve is dirty and the fuel injectors. Try cleaning the throttle body and IAC with throttle body cleaner, if it's really bad you may have to use two cans of throttle body cleaner to make sure you have all of the carbon and varnish cleaned out. If this does not help, then there is a good chance that the IAC has gone bad and needs to be replaced but also check the wire harness to the IAC and TPS on the throttle body. Good luck and hope this helps and it would not hurt to replace the fuel filter also.
It could also be carbon build up on the throttle body, but regardless
the cure is the same. Your going to need to clean the throttle body and
the idle air control valve (IAC). With a can of throttle body cleaner,
(follow instruction on the can) clean the throttle body blade and the
IAC passage way in the throttle body and IAC. Once the throttle body is
cleaned, with the engine off, turn the ignition key to the on position
(engine not running) and wait for 30 seconds and then turn if off for
10 seconds and then start it. This should reset the IAC, if it did not
work do it again and see if it helps. If not clean out the IAC passage
way again. The turning on and off the ignition reset's the IAC and it
may still be stuck with carbon build up. Once the engine has started,
Note there will be lots of smoke form the tail pipe, that's normal.
It's just the left over throttle body cleaner and carbon being burn
off, take's not more then 10 min to burn off. Good luck and this should
keep you from replacing the IAC. Oh and don't use Carb cleaner, Carb
cleaner is to corrosive to the throttle body gasket.
Replace the fuel filter and try cleaning out the idle air control valve (IAC). The IAC is located in the throttle body and can be cleaned by spraying throttle body cleaner through the throttle body and in through the IAC passage way in the throttle body. The IAC is know to get stuck with carbon build up causing the stalling of the engine and also check to make sure any electrical connections at the throttle body like the one to the IAC is not damaged at all due to corrosion. Good luck and make sure you use throttle body cleaner, carn cleaner is to corrosive to the gaskets used on throttle body's.
It's nice that your starter is new, but your starter does not start the car...it turns the engine so it can start. So it has nothing to do with your problem...I would check for vacuum leaks at each and every vacuum hose. Then look at possible throttle position sensor and idle control valve./ valve passages. (there are electrical tests you can make on these and valve can be cleaned with carb cleaner, (carefully without turning internal plunger.)