Toyota Corolla 2005 Automatic Engine Sound

#1
Hello everyone my name is Matthew, I am 2005 Toyota Corolla LE owner. I am very please to say my corolla has lasted a long time and I am in the process of upgrading to a 2015 Corolla.

Recently my 05 Toyota Corolla starting making a vibration through the car. I was hoping if anybody can provide some feedback before I take it into the shop on what the it might be.

Heres a video of my engine

Thank You,
 
#2
Your engine (perhaps the valves) does sound louder than my 2003 Corolla with 193K miles,
but overall it doesn't sound all that bad.

However, one thing I did notice in your video is that your belt doesn't seem to rotate in straight line.
If you look carefully, it seems wobble slightly left and right, but that could be the light reflection on the video.

Recently, I did the following on my Corolla 2003 and now its idling really smoothly,
with more responsive acceleration. Also, I'm getting slightly improved gas mileage as well.
But most of the check engine went off.

1. Replaced original spark plugs with NGK brand.
2. Replaced original PCV valve
3. Replaced engine valve cover gasket
4. Cleaned Mass Air Flow sensor (with MAF cleaning spray)
5. Cleaned Throttle Body (with TB cleaning spray)
6. Replaced engine air filter
7. Cleaned ignition coil

How many miles you have on the car?
And when is the last time you've given it a tune up with things that I've mentioned above.
 
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