1999 Toyota Camry Q&A
1999 Toyota Camry Question: Low engine idle
I have had great success cleaning the idle air control valve. Many people replace the valve, I remove the air induction duct between the air filter housing and the intake manifold. I disconnect the electrical connector to the IAC valve, remove the two philips head scews that secure the black plastic part of the IAC valve. A small diameter shaft is exposed, turn that shaft gently for and aft, if it feels like it sticks spray "Chemtool" or an equivalent product into the hole in the throttle housing in front of the throttle butterfly while turning the shaft for and aft. You will feel it free up, reassemble, clean the throttle butterfly area of the throttle housing and your problems may be rectified. This works more than 90% of the time for me. Be judicious with your use of the Chemtool chemical it is flammable and you do not want to use to much of it near the throttle position switch as it may damage the TPS switch internally. - patrick mannion
Low idle problem with a/c on. From my understanding the 2004 camry 4 cyl. IAC is attached to the throttle body and cannot be separated, how do you take it apart and clean the IAC?
So the idle low and the car dead on stop anyone help!
Debris can get into the idle air control valve. This will restrict the air flow into the engine, causing idle speed and/or stalling when cold. The valve can be cleaned or replaced to correct this...
It would drive fine for a few but when slowing down for turn or red light/stop sign it would idle real low. unless i put it in neutral it would die. just recently changed the TPS but it still idled...