Jump to content
Ultimate Subaru Message Board

How do long do Outback auto trannys last?


Recommended Posts

I just purchased a 1996 Outback with a bad engine. I'm replacing the engine with a jdm engine. The tranny has 150 k on it. I expect this car/engine to last another 150 maybe 200 k. That puts the tranny at 300+ k miles. Now rather than later would be a convenient time for me to replace the tranny both time and money wise. How long do these trannys hold up?

Link to comment
Share on other sites

I just purchased a 1996 Outback with a bad engine. I'm replacing the engine with a jdm engine. The tranny has 150 k on it. I expect this car/engine to last another 150 maybe 200 k. That puts the tranny at 300+ k miles. Now rather than later would be a convenient time for me to replace the tranny both time and money wise. How long do these trannys hold up?

 

My '99 OBW required a rebuild at around 100k; started slipping in second gear.

Link to comment
Share on other sites

the 99 and 2000 have some sort of internal issues. Before then they last the life of the car as long as you do regular fluid changes. This comes up from time to time, it may come up on a search.

 

The AWD units can be serviced sepretly from the tranny itself.

 

Blu has 226,000 miles on the original tranny.

 

 

nipper

Link to comment
Share on other sites

unfortunately there's no way to promise anything and there's too many variables to put a number on something like this.

 

transmission failure is very much related to care....many people change oil every 3k miles and at 150k have never changed the ATF!! also there's mismatching tires, improper towing, towing or hauling heavy weight, and overheated ATF that shorten transmission life as well. there's no way to know if any of those things apply to a ten year old vehicle.

 

i would guess that more auto trans fail prior to 250,000 than make it past that mark. i've replaced two at 150k and one at 120k in my own vehicles.

 

i'd get the mileage out of the existing transmission before scrapping it for another. the 4EAT is a great transmission and very reliable. it's probably fine and may treat you well if you keep up with maintenance - tires and fluid changes. they give fair warning as they age or start to incur problems, so the worries of being stranded shouldn't be a concern.

Link to comment
Share on other sites

That '96 outback would have a phase I 4eat; those seem to be capable of good mileages. Like any auto trans though at higher mileages especially it is quite dependant on how it was treated. If the ATF was changed regularly, it wasn't overheated or abused in towing, etc., then it has a much better chance at a long life than if the ATF is still original, it towed a 5th wheel trailer, etc.

 

The early (99, 00, sometimes 01) phase II auto trans sometimes have an issue with a delayed engagement to drive, which appears to be some shrinking seal on one of the drums:

4eat-shrinking-seal-md.jpg

Link to comment
Share on other sites

great info and pic porcupine. is that the part that causes the shifting delays? this should be a dedicated thread if there isn't one already existing. i searched and asked about this about a year ago and no one knew exactly what the cause was.

Link to comment
Share on other sites

It's the best explanation I could find. That's a pic from some Automatic Transmission Rebuilders Association bulletin I found one time. It also shows a possible faulty low clutch timing solenoid? atra-4eat-delayed-forward-engagement-bulletin-844a.pdf
my tranny from time to time takes longer to shift (kind of quirky)...my question is, did the above ATRA make any mention that both items in the photos must be replaced together, or is there a way to determine which part needs changing first before getting into the tranny
Link to comment
Share on other sites

Please sign in to comment

You will be able to leave a comment after signing in



Sign In Now
 Share

×
×
  • Create New...