Question about 1993 Oldsmobile Cutlass Ciera
First off, you want to drain the coolant until it is at a level below the heater core. Then you want to remove your glovebox screws and the entire assembly. It may be necessary to remove the far right passenger side kneepad retaining bolt/nut.Disconnect all vacuum and electricle connections.It's a very good idea to take some digital pix during the process to assure proper reassembly.Remove both heater hoses keeping track of which went where. Back inside look around for all the housing bolts for the heater/ airflow control box.If you have AC it is not necessary to discharge the system.Remove all the housing bolts(some may be attached from the outside. I cannot, from here explain the location of each bolt, you'll have to keep looking until you find them all.I did neglect to mention to remove any cable driven door connectors also, if it is so equipt. Put an old towel on the floor of the vehicle because there is inevitably going to be a spill of coolant. When the housing is completely free "roll" it out from under the dash as far as posible and you'll see the heater core opening cover. It will have the two hose tubes sticking out, you couldn't miss it if you closed your eyes...lol Remove the 5-6 screws and slide the core upwards. You'll know how to reassemble the unit by using your pix as a reference. Good luck my friend, I hope this was as helpful as needed. Dana
Posted on Sep 12, 2009
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Posted on Jan 02, 2017
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