To replace the heater actuator on a 1991 Oldsmobile Silhouette, first, disconnect the negative battery terminal for safety. Then, remove the dashboard panels and any necessary components to access the actuator, which is typically located behind the dashboard near the heater core. Disconnect the electrical connector and remove the screws holding the actuator in place. Install the new actuator by reversing the steps, ensuring everything is securely fastened before reassembling the dashboard.
How to replace a heater hose on a 2001 Oldsmobile silloute
Put a potato in the exhaust pipe.
how do you replace a heater core in a 91 Oldsmobile 98
how do you get to it
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Unfortunately the entire dash must come out to replace that unit.
Could be,a stuck open thermostat,low on coolant,plugged heater core,faulty temp blend door actuator,
Check heatertreater.net for diagnostic information and a fix for the blend door/actuator problems endemic to this model.
Not a easy job. The dash needs to be removed to gain access to the temp actuator. To many steps to list here. Recommend purchasing a shop manual for that vehicle if you intend on replacing the actuator yourself.
You have a faulty temperature blend door actuator located directly behind the radio. Remove the radio and remove the blend door actuator held to the heater case with three 8mm screws, and replace it.
You take ten steps to your right then go make some popcorn and feed it to Cameron. After you have completed these steps, you will officially know that you are mentally challenged.
How did you change the thermostat?