silverton

I've never seen this kind of damage to a subaru rear differential.  They're used so lightly they SHOULD outlive the car by at least 100k miles.

You're probably correct in your prognosis, I'm sure 20 year old, and how every many million miles from factory, gear oil will eventually make it fail in this way.  Judging by the general 'gooeyness' of what's on the exterior of the case, that's no longer oil, it's molasses.

Probably not.  But as it is a OE provided muffler it has to be within some sort of regulation for noise.

Depends on how rusty the car is if you should replace the feed line or not.  the oil return is a rubber hose and that should be replaced along with the gasket for the fitting on the turbo itself.

removing engine vs transmission also depends on how rusty the car is.  in a shop environment we would remove the transmission, it's actually much less work than you think. but if all you have to work with is a garage and an engine hoist, removing the engine will likely be less of a headache.

If you are truly wanting to fix all the oil leaks, it would be best to get the engine on a stand to better inspect, those turbos are shoe horned into the bay and it's difficult to see everything.

I take the thermostat out when I do coolant flushes.  But even on cars that I'm doing flushes on that have green but take blue, the blue coolant still ends up with a heavy green hue. So there is still a fair bit of coolant left over in the system.  If you're just doing it as a maintenance item, I wouldn't worry about the leftovers.

Sorry I'm not much help here, other than I can say without a doubt that's not a factory connector/crimp job.  my shop has one of these as a loaner, i'll try to remember to get it in the air and take a look

Yo dawg, we heard you like oil coolers so we put an oil cooler on your oil cooler.  Does this thing even work? the oil would go through to the cooler, and back into the factory 'warmer'...

Is this brake setup actually an upgrade?  The pads are so small that it is basically using the same amount of rotor surface as the rear brakes..

Without the Legacy, perhaps it will boost WRX sales. It is quite a bit smaller of a sedan, but still a sedan for the Subaru die hards that want one.

Not much to update.  we're at around 77k now, still rocking the 3k mile oil changes.  Everything on the car is still bone dry, even the bit of trans pan seepage I noticed when I first bought it has not really come back.  One thing I can say is do not get your alignment done at Suburb Service in LFP I put it on the alignment rack here at my new shop with a nice drive on Hunter and every corner was out.  The tires are a lot more quiet now!

Not many STi's come across my lift but I had to drive a 2018 today for a noise concern. Honestly boring and I think I can confidently say my 3.6 would easily pull on one.

no warning lights on the dash when this is happening?  when was the last time you had your spark plugs replaced?

rebuilding a transmission is the only thing i really haven't dirtied my hands on.  I did get to take apart and reassemble an STi 6-speed while in training, that was fun!  Also a lot of parts that need to go together just right, but not near as complicated as an AT.

The new camry is a better looking car too.  That TRD trim they have, woof!

It's a lot less work to have someone stand at the back of the car while you rev it than pull the down pipe, but you do you!

sometimes the internals of the muffler will fail and this will happen.

Just as an aside, the gear indicator lights in the Ascent are white, but the legacy/outbacks are still red.

They're tied into the other marker lights so I imagine the problem is isolated to the trunk lid if those are still working.

Just makes my Legacy 3.6 value go up, i'm not complaining!

According to GCBC; more Outbacks were sold in 2023 alone than Legacy's over the last five years combined... basically 6-7:1 every year. There is a market for large sedans, but it's very small.  Hopefully this means an introduction of the Levorg or similar.  Legacy sales are very closely matched with WRX sales, so people who want a large'ish sedan will just move to the WRX.

Changing the battery should not have affected your TPMS at all, I think it's just a happy coincidence.  You don't necessarily have to go to the dealer, any shop with an Autel or equiv can reprogram your sensors.

Just because it's new, doesn't mean it's good, and if it wasn't installed correctly it will leak.  Doing sep plate reseal and piston pin access is basically the same as doing the rear main seal.  the piston pin access cover uses a small o-ring, the sep plate is glued on.  being an old engine you likely also have the old plastic sep plate, there is an updated part WITH bolts, be sure to get the new bolts too.

The underside of your car is well lubricated buddy.

With these pictures it's impossible to say what's leaking. If it's not the head gaskets, valve covers or the steering rack itself, there are three potential leak points on the back side of the engine; rear main seal, the separator plate, and piston pin access cover.

You can either remove the transmission, or pull the engine again.  If you pull the engine I recommend cleaning up all that mess so the next time something leaks it's easier to identify.

I'd be suspect of the brake master cylinder.

There's privileged information not yet available to the public.  I can confirm, as the Legacy is only offered in the North American market anyway, and is out sold by the Outback 5:1, it's getting cut. 2025MY will be the last.

The only thing I can find that's even remotely related is a list of codes for 83-88MY, and 47 is listed as just 'fuel injector'.

Downside to those older cars is that it may not even be a fuel injector fault, it could be oxygen sensors, air flow sensor, older cars had such a fuzzy logic that two other things might be out of spec and it'll set a code for something unrelated.

It being a '90, it could be worth a try getting them (injectors) professionally cleaned, outside of the car with a machine, or even just using a higher quality or octane of fuel.  Here is the US I refuse to use ARCO gas, may as well just put water in the tank. I only ever filled up at an Arco once, in 2005. My car at the time ran like absolute hammered dog shit on that tank.

I would add the Legacy back to the lineup for the 2026MY.

To do it the right way you would want to bake it apart and reseal it, but you could try a bead on the outside... I've sealed up some rear cam plug leaks this way