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Old 10-25-2012, 08:51 AM   #17
J. Steinbeck
Scooby Specialist
 
Member#: 140575
Join Date: Feb 2007
Location: Hotlanta, GA
Vehicle:
2007 Magnum SRT-8

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I've never really had trouble bleeding the stock system, (provided the thermostat was good and installed properly), but I did have issues like yours when I installed a Mishimoto radiator.

Like you, I never experienced an issue with overheating, but I did notice some coolant disappearing. I had a feeling air was still in the system, so I did the following:

-Opened the coolant reservoir by the turbo and stuck a tall funnel in the top to catch overflow

-Turned the heater on full blast

-Started the car and let it get to FULL operating temperature, revving it up a bit once it was fully warmed up. Once the thermostat was open, I got out and "burped" the upper and lower radiator hoses as well.

I saw a lot of small bubbles for quite a while... for a moment I was paranoid I might have a leaking head gasket. But then, after about 30-45 minutes, it stopped.

After that, I pulled the funnel, replaced the cap, and have used next to zero coolant since. All I can figure is that it's a big radiator, and as a result getting ALL of the air out is a bit more difficult.

Hopefully you are dealing with pretty much the same issue.
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