Hey guys, wasn't sure where to ask so thought I'd stop by and see if you guys can point me in the right direction. Hopefully I put it in the right area.
I'm in Wellington. Car is a 2010 (2011 model, but registered as a 2010) Legacy GT 2.5 automatic from Japan, 124,000Kms. I'm the first NZ owner, so no maintenance history and I still can't work out how to set my clock. I've had it for almost a year and over this last week when I leave work (CBD) if I go from mild (5-10%) to almost no throttle, I hear the engine revs go up a little (but not travelling any faster) and then a very loud bang (which kind of feels/sounds like it's coming more from the mid/rear of the vehicle than upfront). Reminds me of a learner driver dumping a clutch.
Engine sounds smooth the whole time.
Car is generally very quiet and smooth.
Once it's done it once, it's good for the rest of the trip. But it did do it to me a second time on yesterday's trip shortly after leaving a petrol station (so was shutoff for 10 minutes).
Doesn't do it immediately - I usually exit the carpark building and drive ~50-100+ meters before it happens.
Doesn't do it in the mornings when I leave for work. (less traffic + 70 zone, slightly different scenario).
If I'm careful with the throttle, e.g. holding it at a set point rather than accelerating then lifting off, I have managed to avoid it once in the last week.
Due to time issues, I've mostly given up being a DIY mechanic now days, but hoping to get some insight/thoughts so I can make some decisions on where to take it or what to ask for.
I've been ringing around and Hutt Automatics was recommended, but they're backed up until October and not super convenient for where I live/work.