Question about 1999 Pontiac Firebird

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No heat in my 1999 trans am

I do not believe the heater core is bad because it is not leaking. could it be clogged? It is blowing out air but only cold air..

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  • josh frail
    josh frail May 11, 2010

    its possible cloged or it could have air int take ur radator cap off start ur car watch the fluid for bubble add fluid as needed

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You can remove both inlet and outlet heater hoses from engine put a garden hose to either end to make sure it is flowing properly, they do have small ports so it is easy to clog. A few more things to check, always use a thermostat, make sure all air is removed from system there should be bleed valves on the highest point of the cooling system. And lastly check water pump for good flow.

Posted on Jul 03, 2010

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