- To replace a heater core, you need to12:
- Pressure-check cooling system to determine if heater core is leaking.
- Locate and remove plenum screws to dissemble and gain access to the heater core.
- Gently pull the plenum open to expose the heater core.
- Remove the mounting screws holding the core to the housing.
- Remove the core from the housing mounts.
- Match the new heater core to the old core to ensure a proper installation.
- Reverse these steps to reassemble.
- Fill radiator with proper mixture of coolant/ water.
- Bleed air from system.
- Check that there are no leaks.
- Operate car and check heater for proper operation.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Locate and remove plenum screws to dissemble and gain access to the heater core. Gently pull the plenum open to expose the heater core. Remove the mounting screws holding the core to the housing. Remove the core from the housing mounts. Match the new heater core to the old core to ensure a proper installation, reverse these steps to reassemble.www.2carpros.com/articles/replace-heater-coreHow it's done:
- Pressure-check cooling system to determine if heater core is leaking.
- Remove and replace leaking heater core.
- Fill radiator with proper mixture of coolant/ water.
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