Weird noise in my CTS

[04monteintimidator]

for about... three days now my CTS has been making this noise i can best describe as a light howl whenever im lightly pressing the gas pedal... when i hit the pedal harder the noise goes away... it also goes away when im not touching the pedal at all... any ideas as to what this might be?

[Drew Dowdell]

what speed? does it only happen at certain speeds?

[04monteintimidator]

it started only at highway speeds but last night it happened at around 40ish

[Drew Dowdell]

It's your differential. It's a known issue.

[04monteintimidator]

alright... should i take it to a dealer to get it fixed or will any auto-service place be good?

[Drew Dowdell]

alright... should i take it to a dealer to get it fixed or will any auto-service place be good?

I don't think there ever was a recall on it... but if you let it go too long the diff will have to be replaced.

There is a recall on a leaky seal on your rear differential if your car is a 2005-2007.

Hope that it's under warranty and take it to Cadillac.

[04monteintimidator]

the warranty is there... got an extended one when i bought the car... thanks for you help

[76ChevyTrucker]

Hell the recall will cover the car even if the warranty isn't there. But yeah, that's probably what it is, so take it in and call it a day from there.