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You must rock the engine foreward to remove the heater hoses. To do this you need to remove the bolts holding the torque struts to the engine. use a prybar and pull the engine foreward far enough to insert the long bolt you removed from the strut through the loop hole on the strut. This will hold the engine. Then you need to remove the sound insulators under the dash board. There is a black HVAC box under the dash, Look for the center floor vent outlet under the dash and remove it. Then You will be able to access a big square cover on the HVAC box. There is something like 8 screws that hold the cover to the box. Once the cover is removed You will find the heater core and the a/c evaporator (looks like a heater core but a little bigger). There is a plate that retains the heater core in the box. The plate is secured by a couple of bolts. remove those bolts, remove the plate, then remove the heater core. When installing new heater core, use petroleum jelly or some kind of grease like white lithium and apply it to the heater hose necks on the heater core to aide installation of heater hoses.

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โˆ™ 2015-07-15 19:55:45
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Q: How do you change the heater core in a 1993 Oldsmobile Cutlass Supreme?
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