SOURCE: 1995 cadillac deville 4.9 eng no heat
The heater in your car depends upon a flow of hot coolant going through the heater core in order to get hot air into the car. If the heater core is partially plugged, it will restrict the flow. If you have a head gasket that is putting exhaust into the cooling system, it will eventually get into the heater core. When this happens there is no coolant in the heater core to make the air warm. If the water pump vanes have corroded away the result will be very poor coolant circulation causing the heater to not blow hot air. If your car is equipped with a heater control valve that is not functioning properly, the coolant flow will be restricted. One or a combination of these factors is likely the culprit in your case.
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SOURCE: Cadillac 1997 DeVille Cadillac Drivers Power Window Switch bad
u have a short . remove the panel and check for anny bad spots.
SOURCE: are 95 cadillac deville good cars?
Pretty dependable,but not cheap to repair when there is a problem.
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