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Re: My Forester CVT blew up [Re: IMPALA08] #5292320 12/12/19 10:59 AM
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slacktide_bitog Offline
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Wow the transmission blew before the head gaskets? hide

Re: My Forester CVT blew up [Re: slacktide_bitog] #5292333 12/12/19 11:09 AM
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madRiver Offline
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Originally Posted by slacktide_bitog
Wow the transmission blew before the head gaskets? hide


Keep it going and keep with the times, before it ran out of oil. These engines had some serious oil consumption issues.

Eluded to but this transmission in Subaru is a known dud: https://www.forbes.com/sites/jensen...es-on-1-5-million-vehicles/#3917e7c779dc

The 100k warranty to me is a joke should be 120k or even 150k but Subaru weaseled out of that.

Last edited by madRiver; 12/12/19 11:14 AM.
Re: My Forester CVT blew up [Re: ARCOgraphite] #5292355 12/12/19 11:26 AM
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LoneRanger Offline
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Originally Posted by ARCOgraphite
Yeah but slushbox = big time efficiency loss.

If they can use a small torque converter ( for idle to 5mph) and lock it up right away then you might have something
Then dont have logic unlocking the darn thing when you backpedal looking for good gas mileage. Really stupid engineering the past decade +.

Subaru uses this small converter + robust clutch concept in their CVT.

And 5 or 6 gears is enough - even for a 1.5L in a 2800 LB sedan.

10 speed? Moronic. Absolutely Moronic.

Give me a team, Ill get this right!

But none of that is necessarily true about the 10-speed jointly developed by Ford and GM. In Ford it is the 10R80, in GM it is the 10L90.

https://www.autoinfluence.com/11-things-you-need-to-know-about-ford-gms-10-speed-transmission/

Take note of #4 in the list. This transmission functions as a sort of hybrid between a DCT (dual clutch transmission) and lock-up torque converter. It has both. It has 6 clutches, paired off as dual clutches. And an advanced design torque converter.



'19 F-150 2.7 twin turbo DI V6 .....(Motorcraft synblend 5W30 SN+)
'19 GMC Terrain 1.5 turbo DI I4....(Warren 0W20 1DexosGen2)
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Re: My Forester CVT blew up [Re: Chris142] #5292383 12/12/19 11:59 AM
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Kestas Offline
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Originally Posted by Chris142
No shops around here will rebuilt a cvt. They source brand new from the dealer.

I talked to some engineers involved with designing CVTs. At the time they said some things can only be set at the factory, precluding any rebuilding at shops. That is one of the caveats with CVTs, They are throwaway units, just like kitchen appliances or modern TVs.

Re: My Forester CVT blew up [Re: IMPALA08] #5292414 12/12/19 12:32 PM
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gathermewool Offline
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I'm sorry to hear about your troubles, OP. It was likely a faulty unit and it's good that you broke it now, instead of someone who might have babied/nursed it to just past the warranty before the failure. I have not way of knowing for sure, but I would guess the chances of you having a similar failure any time soon (e.g., for the remainder of the time you own the Foz) is pretty low.


//

I had not problem getting the CVT fluid changed in both of my Subies.

FXT: My local dealer couldn't do the fluid change. I let a second dealer know that it was an XT and asked if they had HTCVT fluid for the change. The SERVICE GUY said that they didn't off the top of his head, but could order some. The fact that he knew the difference impressed me. I scheduled the apt then and there.

When I asked how the fluid looked during the flush, the service guy asked the tech. The tech said it was darker orange than what went in, but didn't look bad to him. I should have had a sample drawn...



14 Forester XT Touring FA20DIT (Cobb Stage 1)
Castrol Magnatec 5W-30 D1G2 + FU filter (72,320mi, 8/24/19)
15 Legacy Premium FB25
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Re: My Forester CVT blew up [Re: IMPALA08] #5292483 12/12/19 01:29 PM
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benjy Offline
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#! DONT buy a CVT equipped vehicle!!! Mr Subaru youtube states he contacted subie top dogs + they said NO fluid changes in the extended warranty trannys, BUT they note about severe service???? you are the BETA tester + subaru corporate wants your UNOPENED tranny complete in case of failure to diagnose it, so either DUMP that piece of crap before 100 thou or NEVER buy one in the first place!! guessing as these age + failures occur they will have POOR resale value!!!

Last edited by benjy; 12/12/19 01:30 PM.
Re: My Forester CVT blew up [Re: Virtus_Probi] #5292496 12/12/19 01:41 PM
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MoneyJohn Offline
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Originally Posted by Virtus_Probi
Originally Posted by MoneyJohn
Originally Posted by ARCOgraphite

I would recommend a drain and fill early at 15-20K then 60K there after. I have read you will lose the extended warranty on the Fuji CVT if you do maintenance on it. That is insane as it has a severe service maintenance recommendation. I would have to read the service bulletin myself to believe this. In fact I'm going to search for it right now.

Good Luck with that. I have called most dealerships around me (close to the OP as well) and nobody would do that telling me that the fluid is lifetime. When you call them out on 'lifetime', they tell me that its a guideline from Subaru not to change the fluid.
My local mechanic is willing to change at 50K but it worries me that he changes the fluid and then CVT goes kaput, Subaru won't give me the stated replacement.

From what I have heard, most failed CVTs get sent to Japan to figure out what went wrong. Since OP's blew up, doubt they will send that. Most replacement CVTs are refurbs, about ~8k out the door.

I'm not sure what my manual says at the moment, but the Subaru dealers around here recommend changing the CVT fluid every 60kmiles.
Now, Toyota said the tranny fluid was lifetime in my RAV6...that also worked out great.

If I remember correctly, the manual never says replace, just says Inspect.
If you know any dealership in NE that does change tranny fluid, I would love to know. I got my car from Manchester, NH. I do plan to call them when I hit 50K if nobody else agrees by then.

Originally Posted by gathermewool

FXT: My local dealer couldn't do the fluid change. I let a second dealer know that it was an XT and asked if they had HTCVT fluid for the change. The SERVICE GUY said that they didn't off the top of his head, but could order some. The fact that he knew the difference impressed me. I scheduled the apt then and there.

When I asked how the fluid looked during the flush, the service guy asked the tech. The tech said it was darker orange than what went in, but didn't look bad to him. I should have had a sample drawn...


May I know the dealership that changed the fluid in your case?

Re: My Forester CVT blew up [Re: Jimzz] #5292507 12/12/19 01:46 PM
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Rand Offline
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Originally Posted by Jimzz

So I am watching to see how they hold up in subarus. Right now long life is not looking good. Not Nissan bad but I don't see as many hitting 200k with little to no issues.


fyi those are 2 totally different types of cvt transmissions..

one has "pusher bands" and the other is the "puller chain" type

you


2019 Jeep Cherokee Trailhawk 2.0T
2020 Hyundai Elantra "Value Edition"
Re: My Forester CVT blew up [Re: IMPALA08] #5292514 12/12/19 01:54 PM
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geeman789 Offline
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CVT's are theoretically so simple ...

What is the failure mode ? What actually breaks ?

In my experience, every CVT I have driven felt like it was slipping to some extent. And if something slips ALL THE TIME ... it's not gonna last long.


2011 SUBARU Impreza 5-door manual / 2016 HONDA Pilot / 2011 MAZDA 2 auto
Re: My Forester CVT blew up [Re: Kestas] #5292519 12/12/19 02:00 PM
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LoneRanger Offline
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Originally Posted by Kestas
Originally Posted by Chris142
No shops around here will rebuilt a cvt. They source brand new from the dealer.

I talked to some engineers involved with designing CVTs. At the time they said some things can only be set at the factory, precluding any rebuilding at shops. That is one of the caveats with CVTs, They are throwaway units, just like kitchen appliances or modern TVs.


That is horrendous news. However, I was afraid that might be the case as far as servicability in the case of a major failure.



'19 F-150 2.7 twin turbo DI V6 .....(Motorcraft synblend 5W30 SN+)
'19 GMC Terrain 1.5 turbo DI I4....(Warren 0W20 1DexosGen2)
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Re: My Forester CVT blew up [Re: IMPALA08] #5292522 12/12/19 02:04 PM
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Cujet Offline
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I rented a Subaru Crosstrek from Avis. It had under 2000 miles on it when I rented it, and 2400 when the CVT failed. I was going up a long highway grade and the RPM just started climbing trying to maintain speed. Eventually, it started slipping and would not go anymore. I shut it off, restarted, rolled down the hill and into a gas station.

The number of CVT failures is nothing short of staggering. My suggestion is simple, extended warranty for the duration of ownership. Sell before the warranty expires. The chances are very high that it WILL happen to you.



People who count on their fingers should maintain a discreet silence.
Re: My Forester CVT blew up [Re: Chris142] #5292525 12/12/19 02:10 PM
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ARCOgraphite Offline
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Originally Posted by Chris142
I looked this up just for fun. The Price on the new trans is $6118! Throw in some labor,fluids,coolers,core charge and $11K it is.


So 50 hours labour to r&r a longitudinal trans.

That's really sad.. My shop used to get jobs from places that charge like that.

And we did better work.



Last edited by ARCOgraphite; 12/12/19 02:10 PM.

2019 VW Jetta S 6MT OCI#2 7378mi-MOTUL Specific VW508.00+VW Service Filter; '17 Subaru Crosstrek CVT OC#8 60864mi-Subaru Idemitsu 0W20 + SOA Filter
Re: My Forester CVT blew up [Re: IMPALA08] #5292694 12/12/19 05:12 PM
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JTK Offline
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Oh man that sucks! I know it's not helping the situation, but a fella on another board I frequent was quoted ~$11K for a CVT replacement on his 2013 Nissan Pathfinder with 90K miles on it. The repair quote he posted didn't make much sense though. Like it was the "We don't want to do the job" price from that particular Nissan store.

Even though I've owned a bunch of them now- Subaru and Nissan, I don't know what to say about CVTs other than it doesn't matter what type of transmission your vehicle has, they ALL tend to be the first major component to fail and when they do, the repair cost is often close to the value of the vehicle.

Subaru started with their current style CVT in 2010 with the Legacy and they seemed to have made changes to them every 1-2yrs since. Is that a good or bad thing? Who knows. What I have gathered over the years is, when a Subaru CVT fails, they seem to do so catastrophically and with little/no warning. Nissan/Jatco units tend to make noise or shudder for some time and may or may not set a code. I've read where some people 'solved their issues' by only changing fluid at that point, but I'm sure it's only a temporary fix.

It would be interesting to know what the cause of the failure was on this Subaru unit. For Nissan/Jatco units, the problem for YEARS was the pressure control (relief) valve. The valve piston would score over time because of the materials it was made of and stick open causing fluid pressure loss. Fluid pressure loss causes belt slack. Belt slack eventually causes heat and metallic shavings and the problem escalates until the point of failure.


2019 Nissan Pathfinder SV
2017 Ram 1500 4x4, 3.6L.
2015 Nissan Versa 1.6 S
Re: My Forester CVT blew up [Re: benjy] #5292703 12/12/19 05:21 PM
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Bjornviken Online Content
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Originally Posted by benjy
#! DONT buy a CVT equipped vehicle!!! Mr Subaru youtube states he contacted subie top dogs + they said NO fluid changes in the extended warranty trannys, BUT they note about severe service???? you are the BETA tester + subaru corporate wants your UNOPENED tranny complete in case of failure to diagnose it, so either DUMP that piece of crap before 100 thou or NEVER buy one in the first place!! guessing as these age + failures occur they will have POOR resale value!!!


Subaru recommends to change fluid every 60k km

Re: My Forester CVT blew up [Re: IMPALA08] #5292817 12/12/19 07:05 PM
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edyvw Offline
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That is what happens when only way to meet CAFE is going CVT route.


11' BMW 328i xDrive 6MT (BMW TPT 5W30+OE filter)
11' VW Tiguan 2.0T (Castrol 0W30+OE filter)
15' Toyota Sienna AWD (Mobil1 5W30 EP+OEM filter).
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