Jatco Cvt teardown -Mitsubishi Mirage Part 1
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- เผยแพร่เมื่อ 21 ม.ค. 2023
- In this video, I tear out the clutches/belt assembly and remove and teardown the valve body.
Here's a second video, digging a little deeper into this thing • Tearing apart a Mitsub...
And here's a link to Mirage stuff on Amazon so I can make some extra pennies.
www.amazon.ca/gp/search?ie=UT... - ยานยนต์และพาหนะ
Why go to all that trouble on a Mitsubishi piece of crap mirage?
I kinda like my piece of crap Mirage. It's pretty funny how much hate these cars get.
@ I think you have this car completely underestimated. For this throw away society I personally think this might be the only car available on the market today that’s able to be fixed so easily. As long as it’s not rusting away the simplicity keeps you on the road as long as you want to be. I think mine is absolutely awesome and I hate small cars, I don’t think it deserves the piece of crap title at all.
We have a 2014 Mirage manual with 140k km or almost 90k miles and it hasn't given us any headache yet. Comment above is true, this car is very DIYish friendly. 😆 The only thing where I needed a mechanic was when I had the cluth fixed. 🙂
@@madamedoss so you say you haven't had any trouble with it but had to replace the clutch way before 100,000 miles? Sounds like a piece of junk that's given you expensive trouble.
@@steveshattah 50-100k is the lifespan of clutches so.... 🙂
CVT’s, no matter what vehicle, are the weirdest contraptions I’ve ever seen. Thanks for the look inside.
They’re actually a modern version of what was normal on machines way back. You have a fixed (or solid pulley on one side and a variable (spring loaded-in this case hydraulically controlled) on the other. If you want a change, you change the variable pulley and the belt shifts positions to accommodate. It’s almost infinitely variable, but the constant metal on metal in current cvt makes for poor wear and lifecycle performance.
@@GORT70 This CVT did almost 300.000 km in one of the harshest climates on earth. I cannot say that that is poor lifecycle performance.
@@ronaldderooij1774 understood. This one is a rarity and well maintained.
He should make a video on how to take care of car with CVT transmissions
I have a nissan juke cvt ns2
230,000 miles 0 problems.
Oil and filter change every 30,000 miles no more.
I can smell this video and I like it. Also very cool to see the valve body taken apart! I was so tempted to open mine when I changed my trans fluid months back. Thanks for the longer video!
The key to high mileage on these is definitely frequent fluid changes
I change my trans fluid every 20k miles, it's very easy and not expensive.
On these CVTs also not floring the gas pedal in from stand still is important. Basically dont abuse the car.
Oh my! I have one of these cars and have the fluid changed timely. But I never thought that they were so complicated. Great video.
Thanks for watching!
CVT's are less complicated than conventional automatic gearboxes.
I have a Mirage and love it.
CVT or manual?
Any owners on here or potential owners on here lurking, just know you're way better off going to an experience private mechanic, like the maker of this vid, not a dealer service center. It's worth the extra money paying someone who knows JATCO CVTs, how to properly service them i.e. doing cvt fluids DRAINS not the FLUSH bullshit a Mitsubishi tech would do. Hell, my dealer service center guy didn't even know the CVT7 comes with 2 filters or that cleaning the drop pan magnets was essential.
It's a lot easier to find a cvt specialist mechanic at tranny shops now because almost all the Asian MFGs are using them now. This wasn't the case at all a decade ago.
I repeat, find a high end private mechanic like the dude in the vid and forgo Mitsubishi service centers unless you need warranty work done that's free.
Thanks for coming out!
I'm no expert and am far from high end!!!
You don't need to be a rocket scientician to service one of these. The most important/hardest part can be making sure the fluid level is correct imo. They can be pretty finicky if over or under-filled.
Doesn't look so bad. But knowing what to replace and what NOT to replace when doing a rebuild would be critical.
I have a 2021Mirage ES and I do a CVT change every 15K. I get the fluid on Amazon for about 50 bucks. Keeping this fluid clean and cool is the life of these CVT. The Mirage is my daily commuter with 55k on it. I also have a 2019 Honda Ridgeline that gets transmission fluid exchange every 15 K. Cleran fluid means smooth flow on all the parts.
Keeping the fluid clean seems to help. I've seen a few cvt's that failed early due to being on the zero maintenance program.
Just buy castrol transmax cvt, i buy it at walmart in the gallon jug for under 30 or buy 2 or more and get free shipping. Amazon is overpriced. I used it several times in my old cvt outlander sport without issue.
Interesting.
Thanks for posting!
Thanks for watching!
Seeing the inside of that valve assembly gave me the heeby jeebies. That looks like a dadgum mystery to me.
Now we need the tear down of the manual transmission version
And show us the engine as well
Bro if mitsubishi mirage g4 faulty code p285a is what damage?
Great video. How did you learn to take apart such a complex component? It’s mind boggling to me how complicated a transmission is inside..
Thanks for watching! Just remove bolts until til parts fall off. I've torn a few of these apart before but still seem to forget which way to orient the valve body so that parts don't go flying...
@@turdpailsandtrails Just Asking With That Millage The Trans Fluid Was Ever Change ?
@@JorgeRodriguez-po7kx Yes the fluid was changed by the previous owner. How often, I don't remember. I usually try to change the fluid every 50k km(30k miles).
I'm waiting for an engine tear down video!
I’m slowly trying to put one together.
Thank you for these two videos!!! Okay so now to get down to brass tacks. I’m completely new to CVTs or visa-versa? Anyway, I’ve recently purchased a 2015 (haven’t picked it up yet) that may or may not be having CVT issues. I’m leaning towards that it does but, that’s neither here nor there for my question… What would you recommend be my first steps to figure out what’s actually going on & diagnosing it prior to tearing it apart? Or is it even possible to diagnose for sure on a CVT? In addition, I wondered what a good cleaning, flush , new filter & fresh fluid would bring? Do you have any opinions on that? I’ve had some standard transmissions that were slipping & after changing the filter & fluid with a high mileage variety, they stopped slipping and never did again. I had a Toyota Previa with like 325k on it that, that went onto another gentleman who is still driving it with no issues whatsoever. So, can you offer any advice? Any suggestions would be greatly appreciated! Thank you!
I'd check for trouble codes first. If in doubt, drain the fluid, maybe drop the pan and take a look for chunks o metal or large filings. Replacing the fluid won't hurt it.
Why do you think it's having issues? There's not a lot you can do to fix these but in a lot of cases replacing the valve body can cure some issues. These transmissions prefer clean fluid.
@@turdpailsandtrails First… thank you for responding! Well, I haven’t picked up the vehicle yet, that happens this weekend. I picked it up cheap due to the fact that the current owner stated that it’s starting to “slip” and has stalled a couple of times. As the second owner since 37k, I asked if he’d changed the fluid in the time he’s owned it and he said no. So, it’s a 50/50 shot that the prior owner had given it a change. My guess is no. It has 124k on it and much of its life was spent on the open highway as a commuter. This makes me hopeful as I’m assuming this type of driving would be less demanding on the belt & pulleys. When I visually checked the dipstick, the fluid was a medium shade. Not completely blackened or anything remotely like that. However, there was some of the sooty residue on the end of the stick. Nor did it smell burnt. Depending on how deep the stick actually goes, this could mean there’s the typical amount on the bottom of the pan & on the magnets or… if it doesn’t go all the way down, the fluid is really full of fines and had settled out as far as it can & there’s just a crap load in there and the dipstick is picking it up as it gets dipped down into it. I won’t know till I drop the pan. I do know that when I’d checked the dipstick, it hadn’t been driven for a couple of weeks at that point & was just setting parked as it was put up for sale. Maybe after I have the opportunity to drop the pan, take pictures of my findings, have thoroughly cleaned it & the screen & have done as complete a flush as I can by running 2.5 quarts through it at a time… dumped it maybe 3 times & then added a specially designed CVT additive and a fresh filter… then, I’ll let you know what I have found & how the trans responded. Sound like a plan?
@@adriangoede7433 That's what I'd do as well. The stalling part may not be a great sign.
I've replaced 3-4 of these that would stall in drive when coming to a stop. In the "part 2" video I show a couple pics of one of the bearings that I've seen pile up and cause stalling. The fluid would turn black right after a drain and fill though. You'd know right away when you drop the pan though.
@@turdpailsandtrails 😩😩😩
@@turdpailsandtrails Hey there. Thought this might be of interest to you. This is a link to an actual Mitsubishi Technical Service Bulletin (TSB) on the 2014-2019 Mirage & G4 CVT. ( static.nhtsa.gov/odi/tbs/2019/MC-10162635-9999.pdf ) If for some reason you can’t access it, I can try emailing it or something. There’s a lot of excellent info in there.
The one thing I miss about my mirage is that there was no issues in stop and go traffic. I have a Crosstrek base model and holy crap when I let go of the gas pedal, it breaks HARD. I feel like I'm brake checking people in traffic and I feel horrible but I can't control it. People say that's normal cvt behaviour but that's bullshit in my opinion.
I should not be anxious about the random stops and huge lag in a Subaru Crosstrek. Never had that issue with my mirage.
Even the mechanics at the dealership said it's totally normal. I can't wait to get out of this death trap
Wow. That says a lot. How come you left the Mirage?
@@edgaryzen4925 when carvana was offering a lot more for used cars in 2021, they offered me the exact amount I owed left. I had a terrible rollover amount from the car previous. So I was able to start fresh on a new car without negative equity.
It was an opportunity for me basically but now I regret it a little. Hopefully I can get into the Bolt EUV soon
Its the AWD
Kind of off topic but do you know or have any tip for new Mirage CVT owner to get the max efficiency on the gas pedal on flat surface, hill, downhill and from cold start? I have been very LIGHT on the gas pedal because i WANT low RPM for peak effiency aka high MPG but it a trade off for SLOW acceleration. Cruise Control helps but it pushes the RPM up to 4K which is concerning. Maybe I’m not doing it right but i DO WANT to extend the CVT life span.
thought?
I don't know the most efficient way to get up to speed from a start. But I found if you already used the cruise, using the resume function seems to accelerate the most efficiently. But that only works if you had already used cruise before stopping. I haven't had the rpm go up to 4k doing this on flat ground, at least not when resuming up to 50mph.
Where do you go to get every single part other than the casing to rebuild it fully, can't find any complete rebuild kits.
I haven't rebuilt one, just torn them apart after replacing them.
I got a 2024 Mirage, doing a full service on the CVT tomorrow. So cleaning the pan magnets, and replacing the filter in the pan, as well as the cartage filter. I heard it's a good idea to reset the CVT degradation level, my OBDII computer doesn't have that option it seems, would I be fine driving it without resetting the degradation level for a few miles to the auto store, so I can use their OBDII computer to reset it? Thanks!
I’d just be concerned about getting the fluid level correct as per the chart in the service manual.
I change cvt fluid at mileage intervals so don’t monitor or reset degradation levels. So yes, you can drive perfectly fine without resetting it.
Nice video. At what mileage should cvt transmission filter replaced?
I don’t know if there Mitsubishi even has a recommendation for the filters. It took a while to convince my dealer that these cars even had a filter let alone two… I used to say change the paper cartridge filter at 60k miles but I haven’t changed on in years. I just change the fluid every 50k km. There’s one 2017 Mirage in the fleet with over 530k km/330k miles that I’ve only changed the fluid and never touched the filters.
Mitsubishi recommend to change trans fluid every 40k miles.
Did you have to drop the subframe to remove the transmission? Was you able to keep the engine installed in the vehicle?
I didn’t remove the subframe or engine. Have to lift the back of the transmission up and slide it forwards to clear the subframe. It’s tight but it fits.
Check the other videos, I posted a couple showing how to replace it.
Is it rather easy to replace the transmission on the Mirage? Also, do you know of any guides on how to do it? Thanks!
Relatively easy, if you’ve ever replaced a transmission before. It’s no different than a typical front wheel drive automatic.
Next time I replace one I’ll try to make a how-to video.
@@turdpailsandtrails Thanks! I have never replaced a transmission, but I will be getting one of these cars soon, and will expect to have to replace the transmission. I drive slow on the freeway, but at 250,000-500,000 miles, it will likely need a new one. And I want to just do it my self.
You need to learn the car about the new transmission. I think it needs specialized software for that. Not sure though. Just keep in mind that you could need a prescription or a dealer to do that.
Nope. Maybe….a brand new one. But even then it’s unlikely required other than a few drive cycle relearns that might not require a scan tool. But I don’t think anyone would go out and buy a new cvt. Price one out…Other than a dealer installed warranty job I don’t think anyone would actually go out and buy a new one.
If installing a used one, just bolt it in and drive it. Save the time, money and headache dealing with the dealer.
Didn’t know they would last that long…
Having under 80hp helps!
@@turdpailsandtrails it because of the LOW STRESS application to the reliable engine
Make sure you put it in low range so you don’t smoke the belt.😂
I've been looking into getting a new one of these, would you say the CVTs are okay or should they just be avoided for the 5 speed m?
If they’re maintained cvts can last. There’s a few in the fleet that I maintain with over 300,000miles on the original cvt and engine.
I’d test drive both. I haven’t tried a 5spd Mirage but assume it’d be a little quicker than the cvt.
I went with a cvt for my own car partially because I’m lazy and 5spd Mirages are harder to find around here.
I'd say it comes down to your driving conditions: the CVT is superior if you're mostly doing short and or around town driving as you'll get better MPG's vs the 5-speed and also the CVT will be a bit smoother of a platform being paired with the vibby 3 cylinder; if you're doing a fair amount of highway driving then stick with the 5-speed, long-revved-out drives are the CVT killer.
Maybe for a Nissan spec CVT7. Mitsubishi and Suzuki do a much better job with JATCO CVTs. Different programming, the Mirage CVT operates like a true continuous variable tranny. The real CVT killer isn't long highway drives, it's a heavy curb weight and too much torque. The Mirage weighs only 2100 lbs with a paltry 74 lbs of torque, it's CVT7 is rated for over twice that power.
Any way you can show a teardown or repair of the 5MT on the Mirage?
Sorry, I only seem to work on the cvt models. The stick shift seems to be getting phased out across the industry.
@@turdpailsandtrails That's why I wanted the video lmao, thanks anyways though. :)
How to drian out some cvt fluid If i overfilled .?
You could pull the drain plug or put a hose down the dipstick tube then pump or siphon some out. I find if you drain it from the plug when the car is level 2.5L comes out, so that's what I pour back in when doing a fluid change.
How much did the new replacement CVT cost? Did it come with a new torque converter?
I bought a used one from a 2017 with 2600km for $500. It came with the convertor. That was 2 years ago though. I think a new one was around $6000 from the dealer.
Change your fluid every 30k miles…. I use amsoil stuff is great… you’ll get plenty of miles out of it..
With the announced end of production of this car (supposedly 2025 being the last year) would you still buy this? Im fine driving manual or trusting a cvt. I'd be buying used (60,000 miles or more).
Yes, I’d still buy one despite it being discontinued.
@@turdpailsandtrails thanks! It’s my next car, when and if my 2003 Nissan maxima breaks down
How much was the cost of the engine and transmission?
$700 for the engine and $500 for the transmission. That's Canadian Pesos, Plus tax and core charges. That was in 2021.
If you romp on a CVT and do not service them they are much more prone to fail. Many videos from Mitsubishi owners reporting very high miles with zero issues with their CVT when properly serviced as in fluid and filter changes at the required intervals.
Transmission model number?
Jatco CVT7 JF015E
@@turdpailsandtrails Thanks! I'm working on Nissan JF009E (RE0f08B) CVTs right now. Maybe that's a "CVT1"?
Might as well get a standard than a CVT
This is worst technology ever built in a car. I miss old cars
Yeah, the cvt sure doesn't make it a fun car to drive but they seem to work. Might be more reliable than some of the over-complicated failure prone dual clutch automatics offered by others.
DaVinci was the first to conceptualize the continuously variable transmission. It's a unique design that maximizes fuel efficiency. The Mirage, since 2013 worldwide, as a good reputation for reliability. It has a very high % of owners that buy more than one. Hell, we're on our 4th in my family.