3.6 Engine whine a lot?

[Z71]

I have been told that my engine is making a whining/whiring noise. People on the street have told me this and I have noticed heads often turn and look in my direction, giving be to wonder about this.

Is this a common thing with the 3.6L?

I drove thru a city underpass with windows down and it sounded like a alternator bearing or some similar sound but only when the engine is rev's up. Only 7,100 miles on CTS.

 

[IANNN]

do you have any engine mods?

 

[MAC1]

Since it's under warranty just bring to a Cadillac dealer. If you're not satisfied with what you hear then bring it someplace else. If it's under warranty, why mess around.

Another option would be to buy a mechanics stethoscope for about $20, which may assist in making a diagnosis.

 

[Z71]

No mods, 100% stock.

I have been told there are 2 TSB's on this. One covers normal gear chain noise and they other is for a modfication of the harmonic balancer on front of engine. Whine increases with RPM and thats what mine appears to be. Let the dealer tech sort it out.

http://www.cadillacfaq.com/faq/tsb/index.php?category=4

 

[IANNN]

take it to the dealer for sure let them take care of it.