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Q:

I have no heat . return line is cold from h.core.
on 2000 Pontiac Firebird

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
there are no visible leaks.
(1) Answer
(2) Comments
Have the heater core itself flushed out! This needs to be done by a shop that knows how!! Air pressure + water.
thanks will give it a go
We have good luck with this at the shop! Check out youtube, enter your question on the search bar, you may be able to do something, if that dont work take it to the shop.