1995 cadillac deville codes p0039 what is it

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.

Thank you for using FixYa! A FiXyA rating is appreciated!!

SOURCE: I just bought a 1995 Cadillac DeVille and the gas

replace the fuel pump module

SOURCE: Serpetine Routing Diagram for a 1995 Sedan Deville

here you go.

SOURCE: 1995 Cadillac Deville 4.9 L engine 168,000 miles:

Have a professional look at it. It may be time for a trans replacement. No use dumping time and money into it if its toast.

SOURCE: My 1995 cadillac deville feels

The P041 code on your year model Deville is distributor related...either the hall effect switch and/or the magnetic pickup coil is defective...my guess would be the pickup coil. If your car has high mileage, you might want to consider replacing the entire distributor with a rebuilt one. Good luck, i hope this helps,