2009 CTS-V - Noise when cold? | 6L80E / 6L90E Tuning

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NEW!!!

I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.

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Sun, 05/29/2016 - 17:12

#1

tmkdev

2009 CTS-V - Noise when cold?

My 2009 CTS-V started making a noise, only when cold and only when in gear. The noise goes away when in P/N. Sounds like fluid/hissing, rather high pitched. Goes away once I back out of the driveway and won't come back until it sits and gets room temerature?

Bad filter? Torque converter? Trans starting to fail? Something else?

Any ideas would be helpful.

TK

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2009 CTS-V - Noise when cold?

Click on the "SUBSCRIBE" tab to sign up. I will not respond to technical questions unless you are a paid subscriber. Calibration and Config files will not open directly from the site, they must be downloaded to your computer in order to open.

NEW!!!

I will make one calibration change for an additional $100 per change. For example, changing a shift point for a given gear is $100 vs changing a shift point and a pressure setting would be $200. That value can be used towards the full custom tuning price.