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Why won't the heater change from dash to floor or to vents in a 1995 Firebird?
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Answered 2009-07-23 14:32:42
The lvl select door is vacuum operated. I'm not sure where the vacuum block is located on this year, but if u look in a manual it will help.
You should see the vacuum lines under the hood on the firewall. There is a black housing that they connect into. Replacing that housing should fix the problem unless you have a cracked Vacuum line. You can get a cheapy T shaped line at most parts stores.
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