Adoniram Posted March 8, 2014 Share Posted March 8, 2014 I'm on the highway, between 65 and 75mph, 2500-2800rpm, and the turbo starts making this WOOP noise. It's quick, and only once every few seconds. It's kinda like a quick sucking noise, obviously from the turbo area, and there's a brief loss of power when it happens. Sounds like the Geiko camel going WOOP WOOP but only once... Or maybe like a stone falling into a pond, but slightly louder. Is the turbo dying or could it be something else? Banjo bolt changed 25k ago, plenty of oil, was boosting just fine earlier today... Link to comment Share on other sites More sharing options...
FJuan Posted March 8, 2014 Share Posted March 8, 2014 Does it feel like you have a power surge when that happens? My wife's balls are delicious. Link to comment Share on other sites More sharing options...
Adoniram Posted March 8, 2014 Author Share Posted March 8, 2014 No, it feels like a sudden loss of power, then right back to normal power when the woop noise is over... Link to comment Share on other sites More sharing options...
GTEASER Posted March 8, 2014 Share Posted March 8, 2014 Sounds like the wastegate or BPV is popping open and dropping boost. Do you have a boost gauge? GTEASER's 2012 Legacy GT - Sold GTEASER's 2009 XTeaser - Sold GTEASER's 1992 Legacy SS - Sold Link to comment Share on other sites More sharing options...
Adoniram Posted March 8, 2014 Author Share Posted March 8, 2014 No unfortunately... But that sounds like it could be it. Is that at all common? Any fix other than new turbo? Link to comment Share on other sites More sharing options...
GTEASER Posted March 8, 2014 Share Posted March 8, 2014 Do you have an AccessPort? Or the ability to log? GTEASER's 2012 Legacy GT - Sold GTEASER's 2009 XTeaser - Sold GTEASER's 1992 Legacy SS - Sold Link to comment Share on other sites More sharing options...
Adoniram Posted March 8, 2014 Author Share Posted March 8, 2014 I do, I can get a RomRaider log of it, but not until next week. Will be going to the mountains for spring break first thing tomorrow morning (in my wife's car). I've been doing some research, and I think it's probably the wastegate actuator, but not sure why. Maybe a vacuum hose issue? Or maybe the actuator is failing? If it were to fail, would it fail in the open or closed state? Link to comment Share on other sites More sharing options...
Nubie Posted March 8, 2014 Share Posted March 8, 2014 Are you saying this is while you are accelerating past that range only? Or is it when you try to hold steady at that range? 4th or 5th gear? Link to comment Share on other sites More sharing options...
Adoniram Posted March 8, 2014 Author Share Posted March 8, 2014 Hold steady, 5th gear Link to comment Share on other sites More sharing options...
sarcomax Posted March 9, 2014 Share Posted March 9, 2014 I had the same thing happen yesterday. After the first time I started just being very cautious, then it happened two more times, the CEL/Cruise lights started flashing, and when I pulled away from the stoplight I was at I heard a very loud rattle. I pulled into a parking lot and could not tell if the rattle was coming from the turbo, heat shields, or top end of the motor. I did not let it run for too long. I have an 05, not sure on the miles as it is my wife's car. I plan to go look at some possible problems today. Link to comment Share on other sites More sharing options...
Arsenic Posted March 10, 2014 Share Posted March 10, 2014 I had the same thing happen yesterday. After the first time I started just being very cautious, then it happened two more times, the CEL/Cruise lights started flashing, and when I pulled away from the stoplight I was at I heard a very loud rattle. I pulled into a parking lot and could not tell if the rattle was coming from the turbo, heat shields, or top end of the motor. I did not let it run for too long. I have an 05, not sure on the miles as it is my wife's car. I plan to go look at some possible problems today. Same thing happened to me on Friday. Random woop noises that sounded oddly loud. Seriously freaked me out at first. Then a slight rattling. I kept driving until the rattle turned into something worse. Sounded like the turbo shaft rattling as I gave it gas and it spooled up, stops very quickly as you let off, when boost drops. Long story short, a short bit down the road the rattling stopped and I lost all power, I believe the shaft seized. I will be hopefully having it diagnosed tomorrow or Tuesday. [EDIT] No flashing lights for me. Not a single code was thrown, nor fucks given by my ECU. [EDIT 2] I have an 06 OBXT Link to comment Share on other sites More sharing options...
FJuan Posted March 10, 2014 Share Posted March 10, 2014 I do, I can get a RomRaider log of it, but not until next week. Will be going to the mountains for spring break first thing tomorrow morning (in my wife's car). I've been doing some research, and I think it's probably the wastegate actuator, but not sure why. Maybe a vacuum hose issue? Or maybe the actuator is failing? If it were to fail, would it fail in the open or closed state? I was thinking the wastegate actuator too. Here's a walkthrough on how to test the actuator. http://www.clarks-garage.com/shop-manual/exh-02.htm My wife's balls are delicious. Link to comment Share on other sites More sharing options...
Adoniram Posted March 10, 2014 Author Share Posted March 10, 2014 Thanks F1, gonna try that when I get back. Is there any way to replace just the wastegate actuator without replacing the turbo (or removing it altogether)? Link to comment Share on other sites More sharing options...
FJuan Posted March 10, 2014 Share Posted March 10, 2014 Yes, the actuator can be replace without taking off the turbo. It's also a good idea to pull the DP and check the shaft for play and the wastegate. Here's the pic of the actuator and the adjustment nut. My wife's balls are delicious. Link to comment Share on other sites More sharing options...
DickDastardly00 Posted March 12, 2014 Share Posted March 12, 2014 I heard a strange whine coming from the trubo this morning (pre boost), I wouldn't call it a woop sound, but maybe it was. It happened right after I threw a P0011 cell, going to check the Bajo bolt and filter tonight. ♪Emancipate yourselves from mental slavery; None but ourselves can free our minds.♫ -Bob Marley, Redemption Song Link to comment Share on other sites More sharing options...
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