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2000 cadillac deville heater
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lex859
New User
Dec 21, 2011, 8:23 PM
Post #1 of 2
(2756 views)
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2000 cadillac deville heater
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I have a 2000 cadillac deville and the heater blows hot only when i hit the gas. If im stopped at a light or something it starts to blow cold. Sometimes if i rev it up it goes back hot. Coolant seems to be fine sometimes it smells under the hood. I have replaced the water pump and thermostat but still have the same problem. Any advice would be gladly appreciated. Thanks
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zmame
Veteran
/ Moderator
Dec 22, 2011, 10:46 AM
Post #2 of 2
(2717 views)
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Re: 2000 cadillac deville heater
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I would try flushing and back flushing the heater core, might be partially plugged.
Take the 2 hoses off pour some CLR and let it sit in the heater core for a while then back flush and flush thoroughly.
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