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Toyota Repair/IAC and Throttle body

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Expert: Ted Ritter - 10/10/2009


Question
Okay, I have a Toyota Camry 95' 4 cylinder. I am having RPM fluctuations while car is at idle, I also notice while driving the car jumps of around 500RPMS if i take my foot off the accelerator and when i depress it. It almost feels like the car will stall if i would be driving at lower speeds.
After researching the problem, i read that carbon and gunk on the IAC and Throttle body causes idle issues(after toyota dealership failed to propose this as an issue i changed my distributor cap, ignition coil, spark plug and wires). Since im not a professional, can i clean the throttle body and IAC hole with carbonetor cleaner without having to remove the whole thing? Does the carbenator cleaner damage the engine? How would you suggest i proceed.

Answer
Cleaning the IAC valve without removing it may not work very well but you can give it a try, remove the intake hose from the throttle body and spray the inside with the carb cleaner, clean the inside with a nylon brush, You can also use a can of air intake cleaner available at autoparts stores.

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Ted Ritter

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I have more than 28 years experience as toyota technician, I will be able to answer most questions related to the Toyota product line up to the present year models,I am located in the US but welcome questions from other regions of the world. When asking a question please provide specific information: year,model, engine,transmission information. Provide as much information as possible including a brief repair history if possible. I have been a volunteer here for almost ten years an have answered over 16,000 questions helping Toyota owners with their problems without any compensation, some of my answers are published on many other websites via google and other search engines. AllExperts recently added a new feature which allows questioners to donate to experts on the site, any amount of donation is very much appreciated, to make a donation just click on the DONATE button.

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Toyota technician since 1979,expert in electrical systems,OBD systems,engine repair, driveability problems,EFI systems,ASE certified,Toyota master technician.
Certified Hybrid Vehicle technician.

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Toyota master technician, ASE certified in eight catagories, Hybrid vehicle certified. Toyota technical training: Engine Automatic transmission Manual transmission Drivetrain Electrical systems Brakes and chassis Air conditioning Engine performance and diagnostics Hybrid systems

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