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No Heat 1990 Deville

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Old Dec 24, 2007 | 07:04 PM
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starbinks's Avatar
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Joined: Dec 2007
Posts: 1
Default No Heat 1990 Deville
My 1990 Deville has no heat. It blows out nothing but cold air, even when I have it set at 90. We recently flushed out the cooling system, and replaced the thermostat, but still no heat. Any Ideas?
 
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Old Dec 25, 2007 | 01:43 PM
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tx_boy's Avatar
Joined: Oct 2007
Posts: 44
Default RE: No Heat 1990 Deville
Have you checked the heater core? My eldorado did that and I had to have the heater core replaced. I think that is what it is called but one of the tech might know better.
 
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Old Dec 25, 2007 | 09:59 PM
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slowroll's Avatar
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Joined: Oct 2007
Posts: 3,160
From: in the mitten
Default RE: No Heat 1990 Deville
Are heater hoses hot? If so remove glove box. Check operation of programmer arm as it moves hot / cold door.
 
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