Artizan Posted June 10, 2022 Share Posted June 10, 2022 Happens in every gear, between 2,000-2,700 RPM, only when I am moving and on the throttle at around 15-20%. Does not happen if I rev it while standing still. Exhaust was just checked and fully sealed by a muffler shop. Turbo was just rebuilt. Neither made any difference. I also had an exact same model car before, and it wasn’t doing this. ‘08 Legacy GT 5 speed manual. It’s driving me insane and I can’t even think of what can possibly cause a rattle in these specific circumstances. Engine would rattling standing still too, right? Link to comment Share on other sites More sharing options...
Artizan Posted June 10, 2022 Author Share Posted June 10, 2022 Oh also, exhaust manifold has no heat shield, uppipe heat shield was welded, turbo heat shield is solid. So it’s definitely not heat shield, but also doesn’t exactly sound like it. Link to comment Share on other sites More sharing options...
Max Capacity Posted June 10, 2022 Share Posted June 10, 2022 Can you drive the car next to a large wall, like the side of a bldg. at the end of a shopping area. With the windows rolled down, you maybe able to hear it and figure where it's coming from. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
whitexc Posted June 10, 2022 Share Posted June 10, 2022 Throw out bearing, clutch fork/pivot rattle? See if the noise changes pressing clutch in or letting out. Like Max said....next to a bldg and head out the window....safely of course. Sent from my SM-G996U using Tapatalk Link to comment Share on other sites More sharing options...
Pleides Posted June 13, 2022 Share Posted June 13, 2022 Wastegate rattle? Link to comment Share on other sites More sharing options...
Marvick08GT Posted July 6, 2022 Share Posted July 6, 2022 I would crank the wastegate arm down 5 turns. If it gets better, problem solved. My brand new turbo was 3mm out of adjustment. I tightened it 15 turns and the noise was gone. Boost was smoother and transition was better. This was before I protuned Link to comment Share on other sites More sharing options...
Tehnation Posted July 24, 2022 Share Posted July 24, 2022 hmm... Ive been running aftermarket/bnr turbos so long I just assumed stock turbos had adjustable wastegates. Thats an oem thing then I believe, I lot of us have gone through 1 or 2 turbos and have probably upgraded to a JMP or likewise, and I guess they all change to adjustable in the rebuilds. I think I may have my stock turbo laying around somewhere, I will confirm. Link to comment Share on other sites More sharing options...
Tehnation Posted July 24, 2022 Share Posted July 24, 2022 Its an oem turbo thing. I just looked at my old stock vf40, not adjustable. Link to comment Share on other sites More sharing options...
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