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Pressure test heater core
I intend to pressure test my heater core in place to confirm a leak before tearing in to my dash. I have read that we should not test the core at the full pressure cap rating because the core may get damaged. I have read 5-8 pounds max. Any guidance is appreciated.
Thanks,
George
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2002 Blazer, 4 dr, 2wd, 199K miles
2003 Rav4, 4 cyl, 239K miles
2012 Mailibu, 4 cyl, LTZ, 85K miles
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