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63burban · 09-03-2017, 03:00 AM

Drill a 1/8 hole in the thermostat, it will get rid of the air problem. Make sure your fittings and inside of the hose are clean before assembly and use good quality clamps.

09-03-2017, 03:00 AM	#8
63burban Chevy addict Join Date: May 2012 Location: Iron Ridge, WI Posts: 1,085	Re: 5/8" heater core hose blowing off!!! Drill a 1/8 hole in the thermostat, it will get rid of the air problem. Make sure your fittings and inside of the hose are clean before assembly and use good quality clamps.