Whistle

[Rod Helstad]

Whenever I start my 08 v8 when it is cold, there is a very annoying whistle coming from the engine compartment. The only day that it did not do this was when I dropped it off at the dealership the night before to have it checked (murphys law). It sounds more like a vacuum leak to me. I have turned off the heat/ac to try to figure out if it was tha ac compressor, but it still happens. It only will do this for about the first 5 minutes, then quits when the engine is warm. I even put the original air filter back in thinking it was the additional air flow through the K&N, but it is still the same.



I have another appt. for Thursday AM and will leave it outside at the shop so it is cold. Any suggestions?????



Rod

 

[Thomas Rogers]

The first gen STs had this problem. Mine used to do it when it was really cold (below 20 degs F) and before it warmed up. It whined as I accellerated. I was told by others here and through TSB that it was the alternator.



My dealer wouldn't replace mine because they couldn't reproduce. It only happened maybe 3 times the entire 3 years I had my ST.



My suggestion: Try to find the TSB #, text, and bring that in. Sometimes that helps them, but often they have to reproduce in order to fix.



TJR

 

[Gavin Allan]

Maybe it is just happy! :lol::lol: