r/subaru • u/RockyCOFLO • 18h ago

Trouble accelerating.

2008 Subaru Forester 180,000 miles.

I am having issues accelerating from a stopped position, as well as at higher speeds around 45-50 miles per hour.

When accelerating from a stop the car tends to hesitate around 10 mph. It doesn’t necessarily jerk, but it feels as if it’s empty. It then picks up and I experience higher revs around 4500-5000.

When going 45 to 50 mph at an incline I can have my foot all the way down on the accelerator and the car revs high around 5500-6000 and feels like it doesn’t shift. I top out around 50-55 mph until I am on a level surface.

Since this has been happening I have changed the fuel pump, battery, alternator, and most recently swapped the transmission fluid.

I fear my transmission is pretty much shot. Does this sound like the case, or am I overlooking something?
Is there anything else I can test/try to replace?

Please let me know if you need additional information or have any questions about the behavior.

Thank you!

1 Upvotes

67% Upvoted

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1

u/FreshTap6141 8h ago

Are you sure atf transmission fluid is at the right level, checked with engine running and up to temperature, sounds like your low on fluid

1

u/RockyCOFLO 7h ago

I’ll drive it and check it again, but when I finished swapping it it was at the suggested level of not a little over. I’m going to check the throttle body sensor and the PCV today, but I will recheck levels too.
Thanks!

1

u/FreshTap6141 6h ago

Make sure the engine is running when you check the level