It would be best if you get the repair manual for this vehicle since there are 54 steps that would take to long to type and your local library should have it plus this jobs book time pays 7.5 hours to replace the heater core...
how do you replace a heater core in a 91 Oldsmobile 98
how do you get to it
How do you replace the heater core on a jimmy?
How do you change the heater core on a 1989 Oldsmobile Cutlass Ciera? or where can I get the Info on replaceing it
Could be,a stuck open thermostat,low on coolant,plugged heater core,faulty temp blend door actuator,
The heater core may be stopped up. Try flushing it, or replace it.
how do u replace the heater core
The heater matrix, in a Peugeot 206, can be replaced by removing the heater core and the hoses. With the heater core removed you can replace it with a new heater core.
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