This is a huge problem from our perspective as we continue to see cars coming in with Air in the intercooler system.
People have been driving around for years with reduced power and never know it.
Air in the intercooler system can actually stop the pump from running as it monitors electrical load from pumping water, and will turn off as not to burn up the pump. (pump self protection)
Even if there is not enough air in the system to shut the pump down you will have high intake air temps which reduces Air density, which in turn reduces fuel delivery and ignition timing, so we have seen as much as 50 HP loss from this situation.
This simple tool from JRE makes filling and bleeding a dream.
Simply install this in place of the cap, To remove the cap turn the cap to straight up position, twist the cap 1/4 turn in either direction and pull straight up.
Then install the tool by simply inserting it, ( it will lock in same as cap) fill it with coolant start the car and let it run until no more bubbles are floating to the top of the coolant.
Often times you have to keep adding coolant as it gets drawn in in place of air.
Just keep the bottle about half full during the process.
Place a rag under the fitting, and remove the bottle capturing what you can with your finger.
Reinstall the cap and your done.
HORSEPOWER RESTORED.
https://jannettyracing.com/products/...cadillac-cts-v