How to Change Spark Plugs on Toyota's New Engine A25A and M20A

How to Change Spark Plugs on Toyota's New Engine A25A and M20A

A Toyota master diagnostic technician shows you how to change spark plugs on Toyota’s new engine the A25A 2.5L and M20A 2.0L.

In this video I show you how simple and easy the basic maintenance tasks are on the new Dynamic force 4 cylinder engines from Toyota.

Even though this engine is a very complicated engine and many DIY mechanics have concerns over serviceability but as you can see changing the spark plugs and many other tasks are very DIY friendly and very simple.

NOTE: Always use Original spark plugs with this engine. NEVER adjust the gap of iridium spark plugs. If the gap appears incorrect, that is considered a defective plug and should be replaced. Don’t adjust the gap on iridium spark plugs because you will damage it.

Torque specs

Spark plugs 15 ft lbs
Ignition Coil 8mm bolts ( 66 inch lbs or 5.5 ft lbs )

Find the tools you need here (14mm Spark plug socket + Torque wrench):

The information in this video applies to all Toyota models equipped with the new A25A engine and M20A engine found in the following models. 2018 Camry and hybrid 2019 Camry and hybrid 2020 Camry and hybrid 2021 Camry and hybrid 2022 Camry. 2019 Corolla hatchback 2020 Corolla 2021 Corolla 2022 Corolla ( With 2.0 engine) 2021 Venza Hybrid 2019 RAV4 and hybrid 2020 RAV4 and hybrid 2021 RAV4, Hybrid and Prime. 2020 Highlander hybrid 2021 Highlander hybrid. 2019 Avalon Hybrid 2020 Avalon hybrid 2021 Avalon hybrid and AWD. 2021 Sienna.

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0:00 Intro
0:56 Spark Plug Information
1:12 Engine noise information
2:59 Removal
5:49 Spark plug reading
7:00 Installation

#thecarcarenut #toyotadiy #toyotamaintenance



Aldo Raine says:

I had a grand Cherokee that had insulating foam (oem) that was stuck to the engine cover and did a great job in further isolating engine noise. Do you think a similar foam can be install on this one?

Read the Instructions says:

I remove the beauty cover off my 2018 Tacoma in the summer to help cool the engine.
I put it back on in the fall.
Thanks for the instructions.

Shmuel Perlberg says:

Recommended site to buy denso spark plugs?

Steve says:

Thanks for the info what is the accent I hear ?

61Espo says:

The best channel on the tube!

elusivellama says:

There is extra emphasis on getting genuine OEM spark plugs from the Toyota dealership. I tend to consider any spark plug bought on Amazon/eBay to be fake without even needing to look at it.

It's also possible to find out the OEM make and model of the plug and buy it from a reputable site or a brick and mortar shop. The '20 Rav 4 manual says that they are DENSO FC16HR-Q8. So if you can find the equivalent DENSO branded spark plug, it would be the exact same item sold at the dealership. It might even be cheaper, but no guarantees.

Bakhtiar Dusky says:

how about the park plug size ? does the cap size matter ?

lightman says:

I know these new spark plug can last a 100k but at 60k I'll change mine with oem along with all the oem fluids it's about $200 oem $100 aftermarket so spending a extra $100 every five years seems to be a bargain for a piece of mind

bigozo1981 says:

Why shouldn't we use anti seize?

manjot sandhu says:

Hey my friend love your very informative videos keep them coming, are these A25A toyota engines reliable or not?

KENT Y says:

DO NOT USE ANTI-SEIZE. PLEASE if you are doing it to your own car.

Matthew Osorio says:

I mean u don't even have to get them from Toyota since you can buy them directly from Denso as long as you find the part number

Peter Brinkman says:

Why do you say not to use any antisieze?

Antoua B says:

Always super useful content on this channel, such a nice person and a mechanic.

Sam Zorro says:

May I ask you a question? Thank you in advance! Last year, I had a weird sound coming from my engine bay on my 2009
Yaris. I thought it was my heat shield manifold (2 bolts were rusted out), so I removed it. The weird sound was actually coming from a worn down alternator bearing… So my question for you is this one. Is it ok to just leave de car without the heat shield manifold? If I don’t, could I cause any problems down the road? I still have the old manifold, so I would put it back with only the 2 main bolts still not rusted. Thank you!

Mark Reynolds says:

Very interesting video, thanks for sharing this video.

SnipedGaming says:

CVTs are often paired with these, what do you recommend for Transmission fluid change intervals?

KENT Y says:

Another great video from AMD. Thank you for letting us know the torque specs of the plugs and screws (15 FT/LB for plugs and 66 IN/LB for screws). I wrote down on my 2020 Rav4 owner's manual. Listen to AMD and never put anti-seize on the thread. But I do put a drop of motor oil on the thread. I never had problem of removing the oil plugs. I heard the newer plugs come with some kind of film on the thread and if you put anything on it, it will affect the torque value. I am an old timer and I still put a drop of oil on them. I also spray a thin coat of dielectric grease on the coil connectors. On top of that, I will put a dab of Shin-Etsu on the rubber of coil to make them supple years after years. I am looking forward to a video from AMD to show us how to change coolant on this 2.5L non hybrid although AMD had mentioned to remove a hose to release air when he talked about a 2018 Camry. God bless you and you have a wonderful day!

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