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Mailbag: wht is an easy way to flush the heater core on a 2002 caddy?

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What model?

Basically, disconnect the heater core inlet and outlet hoses at the engine and adapt a garden hose to the heater hose and back flush it in the reverse direction. Using hot water is best.

'93 Fleetwood Brougham
'05 Deville
'04 Deville
2013 Silverado Z71

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