I've been having engine problems lately on my 02 WRX, when i reach 4,000 rpm's the entire car shakes very violently...any idea what this could be?? Also, when my boost reaches .05 there is a very high pitched whistling noise i have never heard before. if anyone knows what these problems could be please let me know ASAP. Thanks!!-Colin
it idles smoothly, and it fully boosts. and sometimes i will let off the gas to reduce the shaking (do this for 2-3 seconds) and then hit the gas again and it will go past 4,000 without shaking. and i havent checked for leaks.
when you car shakes does continue to accelerate or does it cough and buck and backfire? If the high pitched whistling sound sounds like a squirrel getting its balls chopped off its your bpv gasket or I have also heard of that being a bad up pipe gasket, but I can speak from experience with the bad bpv gasket since I had mine on and off a million times and it will whistle like that in any sort of boost.