1998 Chevrolet Blazer Q&A

1998 Chevrolet Blazer Question: no heat

I have replaced heater core, I can hear water flow thru heater core when i give it gas, replaced radiator cap because i could remove it with no pressure on it but still no heat, radiator is full -
Answer 1
maybe recheck for an air lock. i have the same truck and you may have to let it run for a very long time. -
Comment 1
thanks replaced thermastat and let it run for awhile fixed it. -
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