r/SubaruForester • u/RockyCOFLO • 9h 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!

2 Upvotes

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1

u/Forward-Rice3280 9h ago

Try cleaning the pcv, not sure if that year has an egr. My 14 does the same thing and sometimes this helps but I burn so much oil I think they just clog up again. Curious to see anyone else’s suggestions 

2

u/RockyCOFLO 9h ago edited 9h ago

I’ll give that a shot! Someone else had recommended cleaning the throttle body sensor as well. I’ll let you know if that works. Thank you!

1

u/totech 8h ago

How are your spark plugs and wires?

1

u/RockyCOFLO 7h ago

I haven’t checked spark plugs, but all my wiring seems fine. I’m going to check the PCV and throttle body sensor, but then I’ll pull the plugs and look. Thanks!