Toyota Avalon Rough Idle

millerboy

Car is idling rough. Mechanic said it might be an oil restriction not getting to a sensor and advancing the timing.

djohnson1

I guess it's probably fixed by now, but for others, google your problem like, "Toyota Avalon rough idle." Also would be good to put the year. There are many things that can cause it. Is your check engine light on? If so, Autozone and some others will read the code for you. Don't buy anything yet. Google the code like "Toyota Avalon code xxxxx and you will get all kinds of ideas how to fix it. You didn't mention how old the car is or how many miles. I cleaned the mass air flow sensor and the throttle body on my cars the other day. Google "youtube rough idle," and you will get all kinds of helpful videos. I like Scotty Kilmer because they are short and simple, but there are many others that are very good also. Make sure you use the correct cleaners, don't touch the sensors and watch some videos before you do it. It could also be a vacuum leak. There is a simple smoke test you can do to find them. Just Google "youtube scotty kilmer smoke test" to find his. It's a hoot, but a very simple way to find a pesky vacuum leak. Gpod luek.