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How to clean throttle body 2001-corolla? - 2002 Toyota Corolla

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Posted on Jan 02, 2017

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SOURCE: How do I adjust the throttle body on a 2007 toyota corolla?

There isn't an adjustment. Even if there were. You don't want to mess with it. It really depends on how you cleaned it. On Asian cars, I take the throttle body off, I also take off the idle air control motor(IAC). And clean them separate. Some Asian vehicles have the barrel type IAC, you have to clean the barrel inside and out of the barrel. A brush works on the outside of it. Ope the barrel and clean the inside with a paper clip or something similar. Use plenty of cleaner. I use break clean. When you just spray the inside of a throttle body, it loosens up carbon, that gets stuck in the IAC. Causing high idles or surges.

Posted on Mar 24, 2015

Testimonial: "Where is the IAC? Does the 07 toyota corolla have one? I really appreciate the answers. I know nothing abouth the newer cars."


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My 2001 Corolla starts fine, but sometimes when I drive it a short distance, and I have to come to a stop it will stall when I continue for a second and then the engine will return to normal. I acts like...

Please remove and check your idle control valve. It may be faulty if it hasn't been changed for a few years. It may just be dirty too.
At the same time, it's best if you remove your throttle body and give it a good clean up with a clean rag and some brake cleaner. Make sure it's spotless. Any dirt in this body can make a huge difference to idle. Good luck.

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You may need to spray some WD-40 on the throttle cable and throttle body linkage. Also check inside the throttle body for carbon build up by the throttle plate and clean.

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Buy a can of Throttle body cleaner and follow the instructions on the can, make sure you buy Throttle body cleaner. Carburetor cleaner is to corrosive to the gaskets used in the Throttle body's. The basic way to use the Throttle body cleaner is to just spray it into the Throttle body, working the Throttle blade and making sure that you also clean the Idle Air Control passage ways. As long as you follow the instructions on the can, you will have no problems. Just note that different Throttle body cleaner products will have different instructions, so read before you use. Just pay attention to the throttle blade, it's common for Carbon to build and can cause the blade to stick from time to time.

Good luck and keep me posted.

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