First and foremost, always disconnect the battery before working on electrical components. I'm assuming since this is a later model that the heater core is in the cab behind the glove box. Let the engine cool down before doing anything. Once it is cool, drain the coolant into an approved container. Under the hood you need to remove the heater hoses from the core. Get in the cab and take out your glove box. There are 6-8 screws holding the attaching the core to the plenum. Remove them. Unhook the vacuum source, but make sure you leave it attached to the case. It looks like a cable with a little triangle shaped plug on the end of it, I think. Anyway, leave the vacuum harness attached to the cover so it doesn't become hard to find. Remove the cover and then take the core out of the chamber. When you go to put the new one in, just do what you did to take the old one out backwards. Check it for leaks and be sure to put coolant back in the radiator. If you have an underhood mounted heater core, I know how to do that one too, but that will take much longer. I wanted to try the shorter one first.
How do you change the heater core on a 1989 Oldsmobile Cutlass Ciera? or where can I get the Info on replaceing it
The Heater Core will be located behind the dash. Hope that Helps.
The water from your 1989 Chevrolet Cavalier cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.
I had this problem before on a ranger you have to pull the dash board out and it will be right there.
Do you mean the heater CORE? If so it is located passenger side, firewall, inside the cabin.
For the HEATER CORE ? No
89 Buick park ave install a heater coil
Do you have a picture on how to change the hearter core for this car?? If so would you send it to me.
Actually , the heater core doesn't have a drain
Begin by removing the water supply hoses from your 1989 Chevy heater core. Remove the heater core retaining bolts. The heater core can be removed.
change out the heater core
how to change heater core in 98 suburban