Question about 2000 Chevrolet Silverado 1500

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No heat flushed system twice and put in all new coolant & re placed thermostate - one hose hot the other not - air blows but no heat

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  • Chevrolet Master
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Either your heater core is plugged or the system has an air lock. To cure an air lock loosen the rad cap, not the overflow, to the first notch and run the truck for a day or two. Check the coolant level often and keep it topped up. If this doesn't solve the problem you could try a "reverse flush" on the system to loosen up whatever is blocking the heater core, otherwise you'll have to replace the core. Hope this helps.

Posted on Feb 09, 2010

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Posted on Jan 02, 2017

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