Violet Crime
Probationary Member
- 23
- 1
- Mar 7, 2008
-
Littleton,
Colorado
My '95 TSi (stock turbo system) has recently developed a new sound under heavy boost; it's like a high pitched whistle. It's not a completely constant sound, though; it whistles for a short interval, seems to cut, and whistles, cut, ect. at a rather high frequency (~ a dozen cycles per second). As the rpm's increase, so does the pitch / speed of the whistle.
Also, I've never been one to pay much attention to my boost, but it seems low. Maxing at ~12-13 psi and immediately dropping back off to about 9 in a somewhat erratic manner.
Finally, with my brother looking under the hood, I redlined the engine. Wasn't able to find the leak, but he reported smoke during the test. Didn't know where it was coming from, but it wasn't a lot. I seem to have a mild coolant leak, so that may well be the cause, but I figured I'd report it as well, just in case.
Thanks for your time guys.
Also, I've never been one to pay much attention to my boost, but it seems low. Maxing at ~12-13 psi and immediately dropping back off to about 9 in a somewhat erratic manner.
Finally, with my brother looking under the hood, I redlined the engine. Wasn't able to find the leak, but he reported smoke during the test. Didn't know where it was coming from, but it wasn't a lot. I seem to have a mild coolant leak, so that may well be the cause, but I figured I'd report it as well, just in case.
Thanks for your time guys.