A lack of coolant in your intercooler can result in a loss of horsepower due to higher intake temps. Logging your car you can watch manifold air temps or IAT2 on the CTS VSport to see how hot the air is going into the engine. Shouldn't be much higher than 170 degrees C. Excessive bubbles will contribute to heat soak. This how-to covers the process of bleeding the system using the all-in-one kit from TapOut Tuning.

Get the kit here:
https://www.tapouttuning.com/product/...

Additional note, be sure to turn your bleed valve sideways before putting engine cover back on.

This procedure is very similar on. The 3.0TT engine of the CT6.


Other tools you may want:
Heat Gun: https://amzn.to/3gzFrWB
Step Drill Bit (Unibit): https://amzn.to/3hGvwzC
Hose Clamp Pliers Type 1: https://amzn.to/3lrbXgZ
Hose Clamp Pliers Type 2: https://amzn.to/3luyPMT

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