jackdb542 Posted October 28, 2021 Share Posted October 28, 2021 Hello, I need some help with a problem I'm having for a 2005 Subaru Legacy GT 2.5 with an Automatic Transmission. I'll cut to the chase. The car won't run right. It has an extremely rough idle when put into gear. When you put it into drive or reverse or any gear, the rpms go down to 250 instead of the desired 750 rpm. We've done everything from replacing injectors, changing turbos, sealing most of our vacuum lines. Just recently in fact, we thought it was the down pipe gasket that the turbo sits on. Ran normally for like 30 seconds and then went right back to the way it was running before. I am stumped. I've looked on every thread, every post and none of them solve our problem. Could someone help me out. Thank you! Link to comment Share on other sites More sharing options...
Marvick08GT Posted October 28, 2021 Share Posted October 28, 2021 Appears to be a transmission issue. If it runs good at idle in Neutral, should be the culprit. If you can verify idle air and it still drops, TC. Good luck! Link to comment Share on other sites More sharing options...
Infosecdad Posted October 28, 2021 Share Posted October 28, 2021 Could also be once you put load on it, something changes and it's mad. Link to comment Share on other sites More sharing options...
08SpecB_DE Posted November 2, 2021 Share Posted November 2, 2021 Have you had the battery disconnected? Sounds like an idle relearn unless it's been this way for weeks. Link to comment Share on other sites More sharing options...
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