Econoline E550 V8-7.3L DSL Turbo VIN F (2002)
8. Remove the heater core.
NOTE: Use care not to spill the coolant remaining in the heater core during removal.
INSTALLATION
1. To install, reverse the removal procedure.
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Lubricate the coolant hoses with MERPOL(R) meeting Ford specification ESE-M99B144-B or plain water only, if needed.