Toyota VVTi System Explained.Why They Rattle and How to Prevent Problems

A Toyota Master Diagnostic Technician explains the Toyota VVTI System in details, explains the problems they have and how to prevent them.

In this video we'll focus on the VVT-i System for Toyota and Lexus. First before we can understand any problems we'll dive into how the system actually works and what's involved.

Then I'll share with you the different problems on different engines that I've seen from experience. Those engines are the 2ZR-FE, 1AR-FE, 2AR-FE and 2GR-FE.

We'll also dive into some of the common problems with this system including the notorious rattle on cold start that many Toyota owners complain about.

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[PrasadKakara]

Having noticed sludge at the main cam bearings in my 2003 Corolla, i carefully studied the VVTi and finally opened up the VVTi. The VVTi was full of sludge and the oil ports were literally clogged. Had to use several solvents to dissolve and clean the sludge. Use is made of universal socket wrench for the 5 headed bolts and torque wrench to fasten the bolts. Torquing the main bolt while keeping the lock-pin unlocked, was a little ticklish. Thanks to Toyota, the cam bearings were numbered and marked, without which i might have failed to reasseble the cam bearings properly as a DIYer. After purging the sludge from the VVTi, OCV and also from all the oil galleries, the Engine's performance improved like new. Thanks for your precise and detailed videos🙏

[hostilityy]

I'm liking the background and the table. the whole presentation seems so simple, yet so professional. you got the power, you got the flava.

[trapraindrp]

you sir are a good man, im just a 25 year old from australia, and ive learnt so much in 22 mins from your video about just, the heart of how a car operates, its amazing to see the detail and in depth look on how gears and oil plays a part - thank you -

liked & subscribed

[g.fortin]

Great info AMD !! Much insight here as always. Thank you for your efforts helping us understand taking care of the car in the real world.

[terryclark]

I have a 2015 Camry that had the VVT gear rattle and Thanks to your video I knew what it was and that I needed to get it fixed ASAP- Thankfully I was able get it repaired under extended warranty before any damage was done! Thanks AMD ! Keep cranking out the great videos!

[RealJohnnyDingo]

Wow, this was an important video and very good education... as 2009 sienna owner, i'll be listening for this! I hope our local toyota techs are as good as you.

[KLM]

Thanks for the clear explanation on how this system works. My wife's 2015 Rav 4 does the rattle after a cold start. It drives me crazy!!

[tardeliesmagic]

Much appreciated the video on the VVT-i system, Amd. Your explanation of the timing chain was very useful. Thank you.

[sonofliberty]

I would love to see more videos on the later 1GR-FE engines like the 2015 Tacoma. It's hard to find much bad news or good news about them. I guess that's a good thing.

[pzrfxe]

Finally. I'm looking for this video already two years. Thank you AMD!

[mrdude]

Thank you. I knew what VVT was but I had no idea how it worked. Now I have a much better understanding of the VVT system.

[IronAndDiesel]

I drive an ‘09 Corolla with 112k miles. No major issues with it except the inevitable VVT-I rattle. Doesn’t burn or drip oil. Coming from domestic cars this is an unusual experience.

Oil changed at 5k miles religiously or sooner whenever the car was driven less. Definitely will be looking into a parts swap soon. Especially since the engine can grenade (did not know this before). I want to keep the car even though it is turning 15 years old. Was thinking about trading it in, but I can’t bring myself to do it.

[diomedesrodriguez]

My 2005 Scion XB has a 1.5 L VVTi engine. No problems with 236, 281 miles to-date. Very reliable Toyota engine. Love this car. Admire all the knowledge your channel is providing all of your subscribers. Keep up the excellent work.

[marcdennis]

I have a 2010 Sienna with the 2GR-FE engine. It has 235, 000 km and has been trouble free. A huge thanks for the heads up. I will check with the dealer about

[artl]

Excellent !! Thanks for taking the time to create such an informative and in-depth video which explains the issue and the preventive actions. Wow…

[jalenhood]

I never hear you talk about the 1.5 Litre 1NZFE engine but I love learning new stuff!

[davidraborn]

Thank you my friend. This solved my problem of rough idle at stops. Simple and cheap. You are an excellent teacher. Love your videos.

[surf]

Thanks again for your videos! I just purchased a 2010 TC S. I am a long time subscriber, and learned so much from you. So, a vvti engine is new to me, but I will be watching you more!

[jtapirenz]

Just showed my father this video and he thanks you for explaining it so well

[DJ-ghdg]

Good information and advice! Appreciate you making these educational videos 👍🏼👍🏼👍🏼