2020 Honda Fit automatic transmission fluid change..
Need some help. Used the Honda transmission fluid.

Don't have a service manual.

Bought the car for my college students graduation present.
First transmission oil change.

Drained the hot oil out and got real close to 3.6 qts.

Did the YouTube . All over the place with ways. However, dealership mechanic said pour 2.5 qts in front level hole. Add 1.1 quarts in the top rubber plug under airfilter box.

That 1.1 qts in top hole seemed odd to me. Why not just pour 3.6 in top?

So I warmed it up taking a drive and leveled car. I removed that level plug on the front side.

Didn't see any fluid. Made a little L shaped bent wire to spin in hole to see were oil was.

By them a little oil was running out. Is it too full?

What is the service manual procedure say??

Oil was pretty dirty. Going to change it again next engine oil change.

Thanks for the help.
Jackie.

 

I have never heard of filling the transmission fluid through multiple holes, but I am also a decade behind with the newest car I have owned (and that one is an EV).

Generally, the fill plug is used both for adding new fluid and finding the proper level. You fill until a bit of fluid starts dripping out. I would guess that once the car is driven and the fluid is hot it expands a bit, meaning the fill plug drip level is probably no longer a good measure of "full."

If there is a dipstick, you generally check the fluid level when hot (often with additional instructions such as checking 60-90 seconds after shutting off the car, which I assume allows the appropriate amount of fluid to drain back into the pan).

But, I don't have a 2020 Fit or a 2020 service manual so this could all be wrong. Why not get a service manual if you want to DIY? You can generally download one for free or low cost.

 

To be honest... That sounds like some fufu fill strategy made up by that individual.

Just either remove the 17mm nut sealing port closer to the back of the transmission (firewall side of transmission, just under the throttle body) or the front fill port that is plugged near the shift select and battery area... Note you may need to put the parking brake on and put the shifter in S or L to see the port. Sometimes the transmission range switch can block your view of the front fill port.

Drain it from the bottom, fill it from the top with 3.6 qts (per Honda's spec), and level check to ensure that you're good to go. I haven't had issues with this procedure on various HCF-2 equipped CVT cars since they phased in for 2013MY to now.

There is a breather tube that has a cap on it (part number 21396-P20-000) that gets dirt/debris in it since it is pointed with its opening towards the radiator fans. With time, it gets blocked and causes the fill port to pop out and can allow CVT fluid to mist/spray out and dirt/grime to get in. Locate that breather cap, ensure that the opening is clean and clear of foreign objects. When you place it back, turn it at a 90 degree angle so it cannot be plugged by the fans again.

 

Thanks guys. Going to look for that breather cap. May why it was a little sticky dirt on top of transmission.

Sorta of a pain getting air box and all that miscellaneous stuff out and back to get to top rubber plug fill hole.

So there's no hot oil check I guess?

Going to see if the 3.6 will go in the oil level side hole. Made more since if I need to remove all that air filter box, just pour 3.6 in the top hole that has the rubber plug that use to have a dip stick on it.

They just didn't leave the dip stick off, there mechanical parts just below that opening.

It really wasn't a fu fu answer?.? I don't think. The mechanic was reading it from his service manual on a computer screen. I got that back in 2020 when I purchased the car and part of my dealing was I was trying to get a OEM service manual out of them.

Closest I got was some maintenance notes and part numbers that I took notes I added in my maintenance record I keep in my laptop.

PS.. Car has the Start button. Not really fimilar with that functionality and shifter since I don't drive car.

Your right that in park, you can't get to the top rubber fill plug hole. And it's dirty around it that needs cleaned before pulling it.

Since I had the air box and snorkel off throttle body, I had the hot wire air flow sensor unplugged. Grand son turned it on to get shifter to move.

So I ended up clearing codes it set... Is there a way for it to be off out of gear?

This attachment appears to show vent plug on top. Also appears top plug is a screw plug with ring. My 2020 is a rubber cork plug. So this picture attached to reference that breather may be an older model.

I probably didn't notice breather since it's back further under throttle body. Guess I can pop it off and rinse it in some gasoline.

Bear with me guys, I only see this car couple times a year.

 

Nobody does. After 2013, Honda went all gung-ho subscription profiteer, locking up the service manuals in their online system. Print manuals do not exist.

I'm amazed Honda has been so blind to the damage this does to their brand. No manuals = no shade-tree mechanics = cars go to an early grave = lower used-car value = repeat new-car buyers have less money to buy new cars.

 

Am I the only one who can't save a post in certain areas like the welcome area??

Guess I figured it out..

Some kind of AI moderator on here that looks at post maybe from new posters.
Took me a while to figure it wasn't me screwing up with my saves.

​​​​​​​