Behind the firewall, near the center of the engine compartment.
You will need to remove the water supply hoses from your 1998 Oldsmobile Intrigue heater core. Remove the heater core retaining bolts. Reverse the process to install your new heater core.
To replace the heater core on a 1999 Oldsmobile Intrigue with a 3.8L engine, first, disconnect the battery and drain the coolant. Then, remove the dashboard and the HVAC assembly to access the heater core. Disconnect the hoses from the heater core, remove any retaining screws or clips, and replace the old core with the new one. Reassemble everything in reverse order, refill the coolant, and check for leaks before reconnecting the battery.
How do you change the heater core on a 1989 Oldsmobile Cutlass Ciera? or where can I get the Info on replaceing it
how do you replace a heater core in a 91 Oldsmobile 98
how do you get to it
Oldsmobile Intrigue was created in 1997.
osmobile delta88
Most likely a bad heater core
please tell me how to remove the heater to get too the heater coil
Disconnect both heater hoses from heater core and connect them together
May be a defective thermostat or heater core
Oldsmobile Intrigue 1999 is negative ground.