Hey guys!
Newbie here.
Got an issue with my 2006 TBSTi, car developed a slight whine under boost (only when cold).
Things start to get a little weird here, the car drives almost perfect with proper spool when cold (albeit the small whine) under boost, however as it heats up acceleration gets extremely poor and boost does not kick in till a LOT later. The exhaust note changes dramatically (to an almost WRX unequal header note).
So I'm assuming its either an exhaust leak or turbo has sh** it self. I've inspected the car on lifts and can hear an intermittent rattle (coming from the front of the car) when idling and warm only (not present when engine is cold).
Cliffs/Notes
- Car runs fine with sufficient boost when engine is cold (with slight audible whine).
- After the engine has warmed up exhaust note changes dramatically and car exhibits intermittent rattle only when idling (possible exhaust).
- Car runs very poorly after the engine is warm and no boost down low.
After much research still at no avail
Help would be greatly appreciated,
Dan