Question about 1998 Oldsmobile Bravada
Check the blend door itself,is this door getting blocked or is this door got cracked.The motor is replaced,the control head is replaced,but is the blend door checked,---- The blend door regulates heat and AC in today's automobiles. Generally the system is set up with air always flowing through the AC evaporator coils, and the compressor is either on or off, cooling or neutral under system control.----Also check the ac line,is the line proper or getting leaked.also check the coolant level is it low or proper.Also check the coolant temperature sensor.For AC, the compressor is on and the blend door blocks air flow through the heater core. For heat, the compressor is off and the blend door diverts air through the heater core. Those are the two extremes, and exacting temperature control is achieved by having the blend door in intermediate positions between the two extremes. If the blend door is broken or getting blocked,it can happen.
Check out.Keep updated.Thanks.
Posted on Oct 01, 2010
If you have automatic air and heater the programmer is at fault
It has electrical wiring and vacuum lines running to it. It will be made of black plastic and located between the heater box and dash carrier
Posted on Sep 30, 2010
Hello! The Blend Door Actuator is defective...Cost is around $125...It's rather difficult to replace but can be done with patience...Here is a picture of the Actuator...
To change the actuator... It can be gotten to by opening the glove box all the way. There is a metal loop on the upper left of the opening that prevents the box from swinging all the way out. The loop will swing out to allow the box to open all the way...You then can look on top of the heat unit and see the actuator. It is on top back by the firewall. It is held in place by 3 screws and has the control wire plug attached. Removing the screws and moving the actuator up will release it from the air mix door. Then just unplug the control wire plug...
Posted on Sep 30, 2010
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Posted on Jan 02, 2017
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