No codes, no fluid leaks, but it's obvious that the whistle rises with the throttle, especially when the engine hasn't warmed up yet.
How do I diagnose this? Faulty throttle body, vacuum leak?
>>16181188
switch to superior turbocharging.
Vacuum leak or check your trans/diff
>>16181239
How to find the leak?
>>16182035
If vacuum jiggle any rubber hoses from the butterfly back on the intake or look for cracked pipes or gaskits around the idle controller.
Could be intake manifold or exhaust leak
1990-2000s GM OP?
>>16181188
someone probably put a really loud turbo on your car when you were asleep.
>>16181188
>why does my tarbo make tarbo noises for?