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How do you replace the heater core on a 1992 Expo?

Updated: 8/16/2019
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17y ago

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A lot of heater cores on newer cars can be replaced from inside the engine compartment - much easier than spelunking up under the dash. Look at the firewall on the passenger side and determine where the heater hoses ( a pair of rubber hoses about 2" in diameter - one feed and one return) connect to the heater core. Most heater cores have the feed and return pipes protruding from the firewall. See if there is a panel that is removable from the firewall side - you might just get lucky. I am doing one of these in the next few days so we'll see just how hard it is.

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17y ago
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Q: How do you replace the heater core on a 1992 Expo?
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